34 amps and DACs made the cut, each rated by its maker at 1 W or more into 32 ohms. That’s enough headroom for most planar magnetic headphones and inefficient dynamic models, which can play too quietly or compress at peaks from a phone or a small dongle. Every one is also rated on its SINAD as measured by Audio Science Review, so a higher rating means a cleaner unit, not just a louder one.
High impedance headphones (250 ohms and up) care more about voltage than current; check the 300 ohm figure on each card. Headphone pages on this site list each model’s impedance and sensitivity, and their cons say when a stronger amp is needed.
This is every match, grouped by type and sorted by rating.
Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Quick Navigation
| Select to compare | |||||||
|---|---|---|---|---|---|---|---|
| 1 | SMSL DO400 | $499.00 | 123 dB | 3,000 mW | Yes | DAC and headphone amp | |
| 2 | D&A Alpha | $399.00 | 122 dB | 9,000 mW | Yes | DAC and headphone amp | |
| 3 | SMSL RAW-MDA1 | $279.99 | 122 dB | 1,700 mW | Yes | DAC and headphone amp | |
| 4 | Topping DX5 II | $299.00 | 122 dB | 6,400 mW | Yes | DAC and headphone amp | |
| 5 | D&A Alpha Pro | $699.00 | 121 dB | 6,000 mW | Yes | DAC and headphone amp | |
| 6 | Topping DX1 II | $119.00 | 121 dB | 1,000 mW | Yes | DAC and headphone amp | |
| 7 | Topping G5 | $299.00 | 120 dB | 1,200 mW | Yes | DAC and headphone amp | |
| 8 | SMSL DL100 | $152.99 | 119 dB | 1,500 mW | Yes | DAC and headphone amp | |
| 9 | JDS Labs Element IV | $549.00 | 118 dB | 3,200 mW | No | DAC and headphone amp | |
| 10 | Topping DX3 Pro+ | $199.00 | 117 dB | 1,800 mW | No | DAC and headphone amp | |
| 11 | Aune X1s GT | $319.00 | 114 dB | 1,200 mW | Yes | DAC and headphone amp | |
| 12 | Fosi Audio ZH3 | $199.99 | 113 dB | 2,570 mW | Yes | DAC and headphone amp | |
| 13 | Benchmark DAC3 HGC | $2,399.00 | 112 dB | 1,250 mW into 30 ohms | Yes | DAC and headphone amp | |
| 14 | Yulong DA10 | $1,092.00 | 112 dB | 3,000 mW | Yes | DAC and headphone amp | |
| 15 | SPL Phonitor x | $3,200.00 | 111 dB | 1,000 mW | Yes | DAC and headphone amp | |
| 18 | Chord DAVE | $14,900.00 | 110 dB | 1,400 mW into 33 ohms | Yes | DAC and headphone amp | |
| 19 | Schiit Magni Unity with Mesh DAC | $239.00 | 109 dB | 2,500 mW | No | DAC and headphone amp | |
| 25 | Gustard A20H | $752 | 103 dB | 2,400 mW | Yes | DAC and headphone amp | |
| 27 | Woo Audio WA11 Topaz | $1,099 | 101 dB | 1,200 mW into 30 ohms | Yes | DAC and headphone amp | |
| 35 | xDuoo XA-10 | $479.00 | 90 dB | 4,000 mW | Yes | DAC and headphone amp | |
| 41 | xDuoo DM-01 | $279.00 | 38 dB | 1,500 mW | No | DAC and headphone amp | |
| 1 | Topping A30 Pro | $349.99 | 121 dB | 5,500 mW | Yes | Headphone amp | |
| 2 | Topping A50 III | $199.00 | 121 dB | 3,500 mW | Yes | Headphone amp | |
| 3 | Topping A70 Pro | $499.00 | 121 dB | 12,600 mW | Yes | Headphone amp | |
| 4 | Topping A90 Discrete | $599.00 | 119 dB | 6,700 mW | Yes | Headphone amp | |
| 5 | Schiit Midgard | $259.00 | 118 dB | 4,800 mW | Yes | Headphone amp | |
| 6 | SMSL VMV P2 | $999.00 | 116 dB | 6,000 mW | Yes | Headphone amp | |
| 7 | Topping L30 | $149.00 | 121 dB | 2,300 mW | No | Headphone amp | |
| 8 | Topping L50 | $169.00 | 121 dB | 2,800 mW | - | Headphone amp | |
| 9 | JDS Labs Atom Amp 2 | $129 | 120 dB | 2,650 mW | - | Headphone amp | |
| 10 | Tom Christiansen Audio HPA-1 | $749.00 | 119 dB | 1,200 mW | No | Headphone amp | |
| 11 | Violectric HPA V550 PRO | $3,599.99 | 111 dB | 4,700 mW | Yes | Headphone amp | |
| 16 | Chord Alto | $4,320.00 | 85 dB | 2,100 mW | Yes | Headphone amp | |
| 17 | Fosi Audio SK01 | $79.99 | 85 dB | 2,400 mW | No | Headphone amp |
DAC and Headphone Amp Combos
Ranked #1 of 43 in DAC and Headphone Amp Combos - SMSL DO400: $499.00 Amazon eBay
Pros: Audio Science Review measured 123 dB SINAD, so its noise and distortion are transparent. A rated 3 W into 32 ohms and 700 mW into 300 ohms drives nearly any headphone, through 6.35 mm, 4.4 mm or 4-pin XLR outputs. Inputs cover USB, optical, coaxial, AES/EBU, I2S and LDAC Bluetooth, with RCA and XLR outputs for powered speakers.
Cons: It costs more than the D&A Alpha and SMSL RAW-MDA1, which share its rating and also measure transparent. At 1,450 g it is a full size desktop unit.
Full SMSL DO400 review and specifications →
| Balanced Output | Yes (4.4 mm, 4-pin XLR, XLR line out) |
|---|---|
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | ES9039MSPRO |
| Device Type | DAC and headphone amp |
| Dimensions | 9.6” x 1.7” x 7.3” (245 x 42 x 186 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced, 4-pin XLR balanced |
| Inputs | USB, optical, coaxial, AES/EBU, I2S, Bluetooth |
| Output Power (300 ohms) | 700 mW (manufacturer rated) |
| Output Power (32 ohms) | 3,000 mW (manufacturer rated) |
| Outputs | RCA, XLR |
| SINAD | 123 dB (measured by Audio Science Review) |
| Weight | 3.2 lbs (1,450 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #2 of 43 in DAC and Headphone Amp Combos - D&A Alpha: $399.00 Amazon eBay
Pros: Audio Science Review measured 122 dB SINAD, so its noise and distortion are transparent. A rated 9 W balanced into 32 ohms and 1.1 W into 300 ohms is enough for nearly any headphone, planar magnetics included, and it adds optical, coaxial and LDAC Bluetooth inputs with XLR line outputs for powered speakers. It matches the rating of the SMSL DO400 for less.
Cons: It is a large, heavy desktop box at 1,650 g, so it is no fit for a cramped desk or travel. The Topping DX5 II rates the same with similarly huge balanced power for less, and the 9 W figure applies only to the 4.4 mm balanced output.
Full D&A Alpha review and specifications →
| Released | Jan 2026 (9 months ago) |
|---|---|
| Balanced Output | Yes (4.4 mm, XLR line out) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | 2 x ES9039Q2M |
| Device Type | DAC and headphone amp |
| Dimensions | 7.7” x 2.2” x 8.2” (195 x 55 x 208 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced |
| Inputs | USB, optical, coaxial, Bluetooth |
| Output Power (300 ohms) | 1,100 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 9,000 mW (manufacturer rated, balanced) |
| Outputs | RCA, XLR |
| SINAD | 122 dB (measured by Audio Science Review) |
| Volume Control | Analog volume IC (NJU72315) |
| Weight | 3.6 lbs (1,650 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #3 of 43 in DAC and Headphone Amp Combos - SMSL RAW-MDA1: $279.99 Amazon eBay
Pros: Audio Science Review measured 122 dB SINAD, so its noise and distortion are transparent. A rated 1.7 W into 32 ohms drives nearly any headphone including planar magnetics, and it has two optical and two coaxial inputs plus USB and LDAC Bluetooth. It matches the rating of the SMSL DO400 for much less.
Cons: The maker doesn’t publish a 300 ohm power figure. Bluetooth lacks AAC, and the Topping DX1 II rates the same with ample balanced power for far less if you don’t need its extra inputs.
Full SMSL RAW-MDA1 review and specifications →
| Released | Jun 2024 (2 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm, XLR line out) |
| Bluetooth Codecs | SBC, aptX, aptX HD, LDAC |
| DAC Chip | 2 x ES9039Q2M |
| Device Type | DAC and headphone amp |
| Dimensions | 7.4” x 1.8” x 7” (189 x 45 x 179 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced |
| Inputs | USB, 2 x optical, 2 x coaxial, Bluetooth |
| Output Power (32 ohms) | 1,700 mW (manufacturer rated) |
| Outputs | RCA, XLR |
| SINAD | 122 dB (measured by Audio Science Review) |
| Weight | 2.2 lbs (1,020 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #4 of 43 in DAC and Headphone Amp Combos - Topping DX5 II: $299.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 122 dB, so its noise and distortion are inaudible. A rated 6.4 W into 32 ohms and 990 mW into 300 ohms is enough for nearly any headphone, through 6.35 mm, 4.4 mm and 4 pin XLR outputs. It adds a 10 band parametric EQ, Bluetooth with LDAC and aptX Adaptive, and RCA and XLR line outputs, matching the rating of the SMSL DO400 for less.
Cons: The Topping DX1 II shares its rating for well under half the price and still delivers about 1 W into 32 ohms, which is plenty for most headphones. Its full size chassis takes more desk space than compact all in ones.
Full Topping DX5 II review and specifications →
| Released | Jun 2025 (1 year ago) |
|---|---|
| Balanced Output | Yes (4.4 mm, 4-pin XLR, XLR line out) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, aptX Adaptive, LDAC |
| DAC Chip | 2 x ES9039Q2M |
| Device Type | DAC and headphone amp |
| Dimensions | 7.5” x 1.7” x 6.1” (190 x 44 x 155 mm) |
| Equalizer | Yes (10-band parametric) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced, 4-pin XLR balanced |
| Inputs | USB, optical, coaxial, Bluetooth |
| Output Power (300 ohms) | 990 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 6,400 mW (manufacturer rated, balanced) |
| Outputs | RCA, XLR |
| SINAD | 122 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 2.1 lbs (945 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #5 of 43 in DAC and Headphone Amp Combos - D&A Alpha Pro: $699.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 121 dB, so its noise and distortion are inaudible. A rated 6,000 mW into 32 ohms and 700 mW into 300 ohms will drive nearly any headphone, including demanding planars, through 6.35 mm, 4.4 mm balanced or 4-pin XLR outputs. It doubles as a full desktop hub with USB, optical, coaxial, RCA and Bluetooth inputs (LDAC, aptX HD, AAC) plus RCA and XLR outputs.
Cons: It costs far more than the Topping DX1 II, which rates the same and measures the same 121 dB SINAD. The SMSL DO400 also matches its rating for less while measuring slightly cleaner. At 1,760 g and 225 mm wide, it needs real desk space.
Full D&A Alpha Pro review and specifications →
| Released | May 2025 (1 year ago) |
|---|---|
| Balanced Output | Yes (4.4 mm, 4-pin XLR, XLR line out) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | ES9039MSPRO |
| Device Type | DAC and headphone amp |
| Dimensions | 8.9” x 2.2” x 7.8” (225 x 55 x 199.3 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced, 4-pin XLR balanced |
| Inputs | USB, optical, coaxial, Bluetooth, RCA |
| Output Power (300 ohms) | 700 mW (manufacturer rated) |
| Output Power (32 ohms) | 6,000 mW (manufacturer rated) |
| Outputs | RCA, XLR |
| SINAD | 121 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 3.9 lbs (1,760 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #6 of 43 in DAC and Headphone Amp Combos - Topping DX1 II: $119.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 121 dB, so its noise and distortion are inaudible. A rated 1,000 mW into 32 ohms from the 4.4 mm balanced output handles most planar magnetic headphones, and a 10-band parametric EQ and a 3.5 mm headset jack with mic support are included. It rates the same as the D&A Alpha Pro for a fraction of the cost.
Cons: Inputs are limited to USB-C and optical, with no coaxial or Bluetooth. Its 230 mW into 300 ohms is modest beside the Topping DX5 II, which rates the same with far more power but costs more. No volume knob is listed.
Full Topping DX1 II review and specifications →
| Released | May 2026 (5 months ago) |
|---|---|
| Balanced Output | Yes (4.4 mm) |
| DAC Chip | ES9039Q2M |
| Device Type | DAC and headphone amp |
| Dimensions | 3.9” x 1.3” x 3.9” (100 x 32 x 100 mm) |
| Equalizer | Yes (10-band parametric) |
| Headphone Outputs | 3.5 mm (TRRS headset with mic), 4.4 mm balanced |
| Inputs | USB-C, optical |
| Output Power (300 ohms) | 230 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 1,000 mW (manufacturer rated, balanced) |
| Outputs | RCA, 4.4 mm balanced line out, optical |
| SINAD | 121 dB (measured by Audio Science Review) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #7 of 43 in DAC and Headphone Amp Combos - Topping G5: $299.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 120 dB, so its noise and distortion are inaudible. A rated 1,200 mW into 32 ohms is unusual for a battery unit and handles most planars, with 3.5 mm and 4.4 mm balanced outputs. It runs about 9 hours on USB, 10 on Bluetooth with LDAC and aptX Adaptive, and 25 as an analog amp, and weighs 265 g.
Cons: Its 175 mW into 300 ohms limits headroom with high-impedance headphones. The Topping DX1 II rates the same and measures slightly cleaner for much less, though it is not portable. At 140 mm long and 18 mm thick, it suits a bag better than a pocket.
Full Topping G5 review and specifications →
| Released | Aug 2022 (4 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm) |
| Battery Life | 9 hours (USB), 10 hours (Bluetooth), 25 hours (analog) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX LL, aptX HD, aptX Adaptive, LDAC |
| DAC Chip | ES9068AS |
| Device Type | DAC and headphone amp |
| Dimensions | 2.8” x 5.5” x 0.7” (70 x 140 x 18 mm) |
| Headphone Outputs | 3.5 mm, 4.4 mm |
| Inputs | USB-C, Bluetooth, 3.5 mm analog |
| Output Power (300 ohms) | 175 mW (manufacturer rated) |
| Output Power (32 ohms) | 1,200 mW (manufacturer rated) |
| SINAD | 120 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 0.6 lbs (265 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #8 of 43 in DAC and Headphone Amp Combos - SMSL DL100: $152.99 Apos Audio eBay
Pros: Audio Science Review measured 119 dB SINAD, so its noise and distortion are inaudible. A rated 1.5 W into 32 ohms handles most planar magnetic headphones, with 6.35 mm and 4.4 mm balanced outputs plus RCA and XLR line outs for powered speakers. Inputs include USB-C, optical, coaxial, HDMI ARC and Bluetooth with LDAC, aptX HD, aptX, AAC and SBC, and a remote controls volume.
Cons: The Topping DX5 II earns the same rating and publishes far more balanced power, though it costs more. The Topping DX1 II shares the same rating for less if you do not need the extra inputs. Its 1.5 W rating is enough for most headphones but short of the several watts some rivals offer.
Full SMSL DL100 review and specifications →
| Released | 2024 (2 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm, XLR line out) |
| Bluetooth Codecs | LDAC, aptX HD, aptX, AAC, SBC |
| DAC Chip | 4 x CS43131 |
| Device Type | DAC and headphone amp |
| Dimensions | 7.7” x 1.2” x 8.1” (196 x 31 x 206 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced |
| Inputs | USB-C, optical, coaxial, HDMI ARC, Bluetooth |
| Output Power (32 ohms) | 1,500 mW (manufacturer rated) |
| Outputs | RCA, XLR |
| SINAD | 119 dB (measured by Audio Science Review) |
| Volume Control | Digital (knob and remote) |
| Weight | 2.3 lbs (1,050 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #9 of 43 in DAC and Headphone Amp Combos - JDS Labs Element IV: $549.00 JDS Labs eBay
Pros: Audio Science Review measured a SINAD of 118 dB, so the DAC and amp are transparent. A rated 3,200 mW into 32 ohms drives nearly any headphone, and a built in 12 band parametric equalizer lets you correct headphone response without software. It takes USB-C and optical inputs and has RCA outputs for powered speakers.
Cons: It has no balanced headphone output, and the 4.4 mm jack is only available as a build option replacing the 6.35 mm jack. The Topping DX5 II rates higher with more rated balanced power for less.
Full JDS Labs Element IV review and specifications →
| Balanced Output | No |
|---|---|
| Device Type | DAC and headphone amp |
| Dimensions | 5.8” x 1.6” x 5.8” (147 x 41 x 147 mm) |
| Equalizer | Yes (12-band parametric) |
| Headphone Outputs | 6.35 mm (4.4 mm available as a build option in place of 6.35 mm) |
| Inputs | USB-C, optical |
| Output Power (32 ohms) | 3,200 mW (manufacturer rated) |
| Outputs | RCA |
| SINAD | 118 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob (discrete optical encoder) |
| Weight | 1.3 lbs (570 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #10 of 43 in DAC and Headphone Amp Combos - Topping DX3 Pro+: $199.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 117 dB, so its noise and distortion are inaudible. Topping rates it at 1,800 mW into 32 ohms, enough for most planar magnetic headphones, and it accepts USB, optical, coaxial and Bluetooth with SBC, AAC, aptX, aptX LL, aptX HD and LDAC, plus an RCA line output.
Cons: There is no balanced headphone output, only a 6.35 mm jack. The Topping DX5 II rates higher, measured cleaner and is rated at far more balanced power for a bit more.
Full Topping DX3 Pro+ review and specifications →
| Released | 2021 (5 years ago) |
|---|---|
| Balanced Output | No |
| Bluetooth Codecs | SBC, AAC, aptX, aptX LL, aptX HD, LDAC |
| DAC Chip | ES9038Q2M |
| Device Type | DAC and headphone amp |
| Dimensions | 4.7” x 1.6” x 6.5” (120 x 40 x 165 mm) |
| Headphone Outputs | 6.35 mm |
| Inputs | USB, optical, coaxial, Bluetooth |
| Output Power (300 ohms) | 250 mW (manufacturer rated) |
| Output Power (32 ohms) | 1,800 mW (manufacturer rated) |
| Outputs | RCA |
| SINAD | 117 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #11 of 43 in DAC and Headphone Amp Combos - Aune X1s GT: $319.00 Aune official store eBay
Pros: Audio Science Review measured 114 dB SINAD, which keeps noise and distortion clean for nearly all listening. Aune rates it at 1,200 mW into 32 ohms from the 4.4 mm balanced jack, enough for most planar magnetic headphones, and it takes USB, optical and coaxial inputs plus an external 10 MHz clock. RCA line and preamp outputs let it feed powered speakers too.
Cons: It costs more than the Topping DX3 Pro+, which rates the same with higher measured SINAD and more rated power. The SMSL RAW-MDA1 rates higher for less, and there is no Bluetooth input.
Full Aune X1s GT review and specifications →
| Released | Oct 2021 (5 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm) |
| Device Type | DAC and headphone amp |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced |
| Inputs | USB, optical, coaxial, 10 MHz clock (BNC) |
| Output Power (32 ohms) | 1,200 mW (manufacturer rated, balanced) |
| Outputs | RCA line out, RCA pre out |
| SINAD | 114 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #12 of 43 in DAC and Headphone Amp Combos - Fosi Audio ZH3: $199.99 Amazon eBay
Pros: Audio Science Review measured a SINAD of 113 dB, clean for nearly all listening. A rated 2,570 mW into 32 ohms from the balanced output handles most planar magnetic headphones, with 6.35 mm and 4.4 mm balanced jacks. USB, optical, coaxial and RCA inputs plus RCA and XLR outputs let it double as a preamp, and bass and treble controls are built in.
Cons: The Topping DX1 II rates higher and measures cleaner at 121 dB for less money, though with less rated power. It has no Bluetooth input, and its SINAD trails most of the top-rated units in this group.
Full Fosi Audio ZH3 review and specifications →
| Released | Sep 2025 (1 year ago) |
|---|---|
| Balanced Output | Yes (4.4 mm, XLR line out) |
| DAC Chip | AK4493SEQ |
| Device Type | DAC and headphone amp |
| Equalizer | Yes (bass and treble) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced |
| Inputs | USB, optical, coaxial, RCA |
| Output Power (32 ohms) | 2,570 mW (manufacturer rated, balanced) |
| Outputs | RCA, XLR |
| SINAD | 113 dB (measured by Audio Science Review) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #13 of 43 in DAC and Headphone Amp Combos - Benchmark DAC3 HGC: $2,399.00 Benchmark Media Systems eBay
Pros: Audio Science Review measured a SINAD of 112 dB, clean for nearly all listening. It has USB, two optical, two coaxial and two analog inputs, RCA and XLR outputs, and a motorized volume knob with remote control. Its headphone outputs are rated for 1,250 mW into 30 ohms, enough for most planar magnetic headphones.
Cons: It costs many times more than the Topping DX3 Pro+, which rates higher and measures cleaner. The two headphone jacks are both 6.35 mm, so there is no balanced headphone output.
Full Benchmark DAC3 HGC review and specifications →
| Released | 2016 (10 years ago) |
|---|---|
| Balanced Output | Yes (XLR line out) |
| DAC Chip | ES9028PRO |
| Device Type | DAC and headphone amp |
| Dimensions | 9.8” x 1.8” x 8.5” (249 x 44.5 x 216 mm) |
| Headphone Outputs | 2 x 6.35 mm |
| Inputs | USB, 2 x optical, 2 x coaxial, 2 x RCA analog |
| Output Power (32 ohms) | 1,250 mW into 30 ohms (manufacturer rated) |
| Outputs | RCA, XLR |
| SINAD | 112 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob (motorized, remote) |
| Weight | 3 lbs (1.36 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Benchmark DAC3 HGC vs Yulong DA10
- Benchmark DAC3 HGC vs SPL Phonitor x
- Benchmark DAC3 HGC vs Chord Hugo 2
- Benchmark DAC3 HGC vs Chord DAVE
- Benchmark DAC3 HGC vs D&A Alpha Pro
- Benchmark DAC3 HGC vs Woo Audio WA11 Topaz
- Benchmark DAC3 HGC vs Sennheiser HDV 820
- Benchmark DAC3 HGC vs NAD C 658
- See all 9 comparisons
Ranked #14 of 43 in DAC and Headphone Amp Combos - Yulong DA10: $1,092.00 Apos Audio eBay
Pros: Audio Science Review measured 112 dB SINAD, clean for nearly all listening. Yulong rates it at 3,000 mW into 32 ohms and 460 mW into 300 ohms from the balanced 4-pin XLR jack, enough for nearly any headphone, and it accepts USB, AES/EBU, coaxial and optical with RCA and XLR outputs.
Cons: The Fosi Audio ZH3 rates higher with slightly better measured SINAD for much less. It is a large, heavy 4 kg box with no Bluetooth input.
Full Yulong DA10 review and specifications →
| Balanced Output | Yes (4-pin XLR, XLR line out) |
|---|---|
| DAC Chip | AK4497 |
| Device Type | DAC and headphone amp |
| Dimensions | 9.8” x 2.4” x 8.3” (248 x 60 x 210 mm) |
| Headphone Outputs | 6.35 mm, 4-pin XLR balanced |
| Inputs | USB, AES/EBU, coaxial, optical |
| Output Power (300 ohms) | 460 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 3,000 mW (manufacturer rated, balanced) |
| Outputs | RCA, XLR |
| SINAD | 112 dB (measured by Audio Science Review) |
| Volume Control | Digital (99 steps) |
| Weight | 8.8 lbs (4 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #15 of 43 in DAC and Headphone Amp Combos - SPL Phonitor x: $3,200.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 111 dB, clean for nearly all listening. It is rated for 1,000 mW into 32 ohms from the 6.35 mm jack and 700 mW from its 4-pin XLR balanced output, enough for most planar magnetic headphones. It adds XLR and RCA inputs and outputs, a motorized volume knob and a learnable IR remote.
Cons: Its USB, coaxial and optical inputs require an optional DAC module, so digital playback costs extra. It costs far more than the JDS Labs Element IV, which rates higher, measures cleaner and has more rated power.
Full SPL Phonitor x review and specifications →
| Balanced Output | Yes (4-pin XLR headphone, XLR line out) |
|---|---|
| DAC Chip | AK4490 (optional DAC768xs module) |
| Device Type | DAC and headphone amp |
| Dimensions | 10.9” x 3.9” x 11.8” (278 x 100 x 300 mm) |
| Headphone Outputs | 6.35 mm, 4-pin XLR balanced |
| Inputs | XLR, RCA; USB-B, coaxial, optical with optional DAC768xs module |
| Output Power (32 ohms) | 1,000 mW (manufacturer rated, single-ended 6.35 mm; balanced XLR rated 700 mW) |
| Outputs | XLR, RCA |
| SINAD | 111 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob (motorized Alps pot, IR remote learnable) |
| Weight | 9.7 lbs (4,400 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #18 of 43 in DAC and Headphone Amp Combos - Chord DAVE: $14,900.00 Audio46 eBay
Pros: Audio Science Review measured a SINAD of 110 dB, so noise and distortion stay clean for nearly all listening. Chord rates it at 1,400 mW into 33 ohms, enough for most planar magnetic headphones, and it doubles as a full DAC preamp with USB, four coaxial, two optical and AES/EBU inputs plus RCA and XLR outputs. A remote and digital volume control make it easy to run as the hub of a desktop or speaker system.
Cons: It costs vastly more than the Fosi Audio ZH3, which rates higher and measured cleaner in Audio Science Review’s tests. Its only headphone jack is a single 6.35 mm socket with no balanced headphone output, and at 5 kg it is a large desktop unit.
Full Chord DAVE review and specifications →
| Balanced Output | Yes (XLR line out) |
|---|---|
| DAC Chip | Custom FPGA (Xilinx Spartan 6) |
| Device Type | DAC and headphone amp |
| Dimensions | 13.2” x 3.1” x 6” (335 x 78 x 152 mm) |
| Headphone Outputs | 6.35 mm |
| Inputs | USB-B, 4 x coaxial (BNC), 2 x optical, AES/EBU |
| Output Power (300 ohms) | 154 mW (manufacturer rated) |
| Output Power (32 ohms) | 1,400 mW into 33 ohms (manufacturer rated) |
| Outputs | RCA, XLR |
| SINAD | 110 dB (measured by Audio Science Review) |
| Volume Control | Digital (rotary encoder, remote) |
| Weight | 11 lbs (5 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #19 of 43 in DAC and Headphone Amp Combos - Schiit Magni Unity with Mesh DAC: $239.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 109 dB with the Mesh DAC fitted, clean enough that noise and distortion stay out of the way for nearly all listening. Schiit rates it at 2.5 W into 32 ohms and 415 mW into 300 ohms, enough for power hungry planar magnetic and high impedance headphones, and its RCA preamp outputs can also feed powered speakers.
Cons: There are no balanced outputs and the only digital input is USB-C, with no optical, coaxial or Bluetooth. The Topping DX3 Pro+ rates higher for less and adds those extra inputs.
Full Schiit Magni Unity with Mesh DAC review and specifications →
| Balanced Output | No |
|---|---|
| DAC Chip | Schiit Mesh (optional internal DAC) |
| Device Type | DAC and headphone amp |
| Dimensions | 5” x 1.3” x 3.5” (127 x 32 x 89 mm) |
| Inputs | USB-C, RCA |
| Output Power (300 ohms) | 415 mW (manufacturer rated) |
| Output Power (32 ohms) | 2,500 mW (manufacturer rated) |
| Outputs | RCA (preamp) |
| SINAD | 109 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 2 lbs (907 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #25 of 43 in DAC and Headphone Amp Combos - Gustard A20H: $752 HiFiGo eBay
Pros: A rated 2.4 W balanced into 32 ohms and 264 mW into 300 ohms is enough for planar magnetic and high impedance headphones alike. Inputs include USB, I2S over HDMI, AES/EBU, coaxial and optical, with RCA and XLR line outputs and a 60 step relay volume control. Audio Science Review measured 103 dB SINAD, clean enough for nearly all listening.
Cons: Its 103 dB SINAD trails many cheaper rivals, and the Tanchjim Luna rates higher with cleaner measurements for a small fraction of the price. There is no Bluetooth input, and at 6 kg it is a very large and heavy unit for what it delivers.
Full Gustard A20H review and specifications →
| Balanced Output | Yes (balanced headphone output, XLR line out) |
|---|---|
| DAC Chip | 2 x AK4497EQ |
| Device Type | DAC and headphone amp |
| Dimensions | 13” x 2.6” x 10.2” (330 x 65 x 260 mm) |
| Inputs | USB, I2S (HDMI), AES/EBU, coaxial, optical |
| Output Power (300 ohms) | 264 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 2,400 mW (manufacturer rated, balanced) |
| Outputs | RCA, XLR |
| SINAD | 103 dB (measured by Audio Science Review) |
| Volume Control | Relay attenuator (60 steps) |
| Weight | 13.2 lbs (6 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #27 of 43 in DAC and Headphone Amp Combos - Woo Audio WA11 Topaz: $1,099 Headphones.com eBay
Pros: It is a portable DAC and headphone amp with a 6 hour battery, USB-C and 4.4 mm balanced analog inputs, and 6.35 mm and 4.4 mm balanced headphone outputs. Woo Audio rates it at 1,200 mW into 30 ohms balanced, enough for most planar magnetic headphones, and Audio Science Review measured a SINAD of 101 dB, clean for nearly all listening.
Cons: The Khadas Tone2 Pro rates higher and measured cleaner in Audio Science Review’s tests for a small fraction of the price. Battery life is short at 6 hours, and the 1,200 mW figure applies to the balanced output.
Full Woo Audio WA11 Topaz review and specifications →
| Balanced Output | Yes (4.4 mm) |
|---|---|
| Battery Life | 6 hours |
| DAC Chip | ESS Sabre (model not specified) |
| Device Type | DAC and headphone amp |
| Dimensions | 6.1” x 3.3” x 1.1” (155 x 85 x 27 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced |
| Inputs | USB-C, 4.4 mm balanced analog |
| Output Power (300 ohms) | 120 mW (manufacturer rated) |
| Output Power (32 ohms) | 1,200 mW into 30 ohms (manufacturer rated, balanced) |
| SINAD | 101 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 0.9 lbs (426 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Woo Audio WA11 Topaz vs Gustard A20H
- Woo Audio WA11 Topaz vs Luxsin X9
- Woo Audio WA11 Topaz vs Luxsin X8
- Woo Audio WA11 Topaz vs Chord Mojo 2
- Woo Audio WA11 Topaz vs Sennheiser HDV 820
- Woo Audio WA11 Topaz vs Chord DAVE
- Woo Audio WA11 Topaz vs Chord Hugo 2
- Woo Audio WA11 Topaz vs SPL Phonitor x
- See all 10 comparisons
Ranked #35 of 43 in DAC and Headphone Amp Combos - xDuoo XA-10: $479.00 Amazon eBay
Pros: It is a very flexible DAC and amp with USB, optical, coaxial and Bluetooth inputs, and Bluetooth supports SBC, AAC, aptX, aptX LL, aptX HD and LDAC. A rated 4,000 mW into 32 ohms from the balanced outputs drives nearly any headphone, and it offers 6.35 mm, 4.4 mm and 4-pin XLR headphone jacks.
Cons: Audio Science Review measured a SINAD of 90 dB, which is fine for most headphones but may reveal hiss or noise with sensitive in-ear monitors. The Loxjie D40 rates higher and measures far cleaner for less. The rated power figure applies to the balanced outputs, so the 6.35 mm jack delivers less.
Full xDuoo XA-10 review and specifications →
| Released | 2021 (5 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm, 4-pin XLR) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX LL, aptX HD, LDAC |
| DAC Chip | 2 x AK4493 |
| Device Type | DAC and headphone amp |
| Dimensions | 8.7” x 2.8” x 3.9” (220 x 70 x 100 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced, 4-pin XLR balanced |
| Inputs | USB, optical, coaxial, Bluetooth |
| Output Power (32 ohms) | 4,000 mW (manufacturer rated, balanced) |
| SINAD | 90 dB (measured by Audio Science Review) |
| Volume Control | Digital (100 steps) |
| Weight | 2 lbs (900 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #41 of 43 in DAC and Headphone Amp Combos - xDuoo DM-01: $279.00 Amazon eBay
Pros: It supports a long list of Bluetooth codecs, including LDAC, aptX Adaptive and LC3, alongside USB-C. A rated 1.5 W into 32 ohms is enough power on paper for most planar magnetic headphones.
Cons: Audio Science Review measured just 38 dB SINAD, a severe and audible level of noise and distortion. There is only a single unbalanced 6.35 mm output, and the Loxjie D30 rates far higher and measures transparent for much less.
Full xDuoo DM-01 review and specifications →
| Released | Mar 2025 (1 year ago) |
|---|---|
| Balanced Output | No |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, aptX Adaptive, LDAC, LC3 |
| DAC Chip | CS43131 |
| Device Type | DAC and headphone amp |
| Dimensions | 6.9” x 3.4” x 2.4” (175 x 86 x 60 mm) |
| Headphone Outputs | 6.35 mm |
| Inputs | USB-C, Bluetooth |
| Output Power (32 ohms) | 1,500 mW (manufacturer rated) |
| Outputs | AUX line out |
| SINAD | 38 dB (measured by Audio Science Review) |
| Weight | 1.6 lbs (730 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Headphone Amplifiers
Ranked #1 of 19 in Headphone Amplifiers - Topping A30 Pro: $349.99 HiFiGo eBay
Pros: Audio Science Review measured 121 dB SINAD, so its noise and distortion are inaudible. Topping rates it at 5,500 mW into 32 ohms and 840 mW into 300 ohms, enough power for nearly any headphone, with 6.35 mm, 4-pin XLR and 4.4 mm balanced outputs plus RCA and XLR inputs. Pass-through outputs let it sit in a chain ahead of speakers.
Cons: It is an analog only amp with no USB or other digital input, so you need a separate DAC. The Topping A50 III rates the same with the same measured SINAD for less.
Full Topping A30 Pro review and specifications →
| Balanced Output | Yes (4-pin XLR, 4.4 mm) |
|---|---|
| Device Type | Headphone amp |
| Dimensions | 6.9” x 1.8” x 5.4” (174 x 45 x 138 mm) |
| Headphone Outputs | 6.35 mm, 4-pin XLR, 4.4 mm |
| Inputs | RCA, XLR |
| Output Power (300 ohms) | 840 mW (manufacturer rated) |
| Output Power (32 ohms) | 5,500 mW (manufacturer rated) |
| Outputs | RCA pass-through, 6.35 mm TRS pass-through |
| SINAD | 121 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 1.9 lbs (870 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #2 of 19 in Headphone Amplifiers - Topping A50 III: $199.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 121 dB, so its noise and distortion are inaudible. A rated 3.5 W into 32 ohms and 760 mW into 300 ohms from its balanced output is enough for nearly any headphone. It has 6.35 mm and 4.4 mm balanced outputs and costs less than the Schiit Midgard at the same rating.
Cons: It is an amp only, so you need a separate DAC. Its balanced input uses 6.35 mm TRS rather than XLR, and there are no line outputs for passing the signal on to speakers.
Full Topping A50 III review and specifications →
| Released | Mar 2024 (2 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm) |
| Device Type | Headphone amp |
| Dimensions | 4.9” x 1” x 5.5” (125 x 26 x 140 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced |
| Inputs | RCA, 6.35 mm TRS balanced |
| Output Power (300 ohms) | 760 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 3,500 mW (manufacturer rated, balanced) |
| SINAD | 121 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #3 of 19 in Headphone Amplifiers - Topping A70 Pro: $499.00 Amazon eBay
Pros: Audio Science Review measured 121 dB SINAD, so its noise and distortion are transparent. A rated 12.6 W balanced into 32 ohms and 1.37 W into 300 ohms is enough for nearly any headphone, through 6.35 mm, 4.4 mm and 4-pin XLR outputs, and it has XLR and RCA preamp outputs for powered speakers.
Cons: It is a headphone amp only, so it needs a separate DAC. The Topping A50 III matches its rating and SINAD for far less, with power that is still plenty for planar magnetics.
Full Topping A70 Pro review and specifications →
| Released | May 2023 (3 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm, 4-pin XLR, XLR line out) |
| Device Type | Headphone amp |
| Dimensions | 8.7” x 1.9” x 6.9” (222 x 48 x 176 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced, 4-pin XLR balanced |
| Inputs | RCA, XLR/6.35 mm TRS combo |
| Output Power (300 ohms) | 1,370 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 12,600 mW (manufacturer rated, balanced) |
| Outputs | RCA, XLR |
| SINAD | 121 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 2.8 lbs (1,270 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #4 of 19 in Headphone Amplifiers - Topping A90 Discrete: $599.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 119 dB, so its noise and distortion are inaudible. A rated 6,700 mW into 32 ohms and 1,000 mW into 300 ohms from the balanced outputs is enough for nearly any headphone. It offers 6.35 mm, 4.4 mm and 4-pin XLR outputs, a relay volume control with remote, and RCA and XLR preamp outputs for powered speakers.
Cons: It is a headphone amp only, so it needs a separate DAC. The Topping A50 III rates the same and measures slightly cleaner at 121 dB for far less. The Topping A70 Pro rates the same with more rated power for less.
Full Topping A90 Discrete review and specifications →
| Balanced Output | Yes (4.4 mm, 4-pin XLR) |
|---|---|
| Device Type | Headphone amp |
| Dimensions | 8.7” x 1.8” x 6.3” (222 x 45 x 160 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced, 4-pin XLR balanced |
| Inputs | RCA, XLR |
| Output Power (300 ohms) | 1,000 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 6,700 mW (manufacturer rated, balanced) |
| Outputs | RCA, XLR (preamp) |
| SINAD | 119 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob (relay R2R) and remote |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Topping A90 Discrete vs Schiit Midgard
- Topping A90 Discrete vs Topping A70 Pro
- Topping A90 Discrete vs SMSL VMV P2
- Topping A90 Discrete vs Topping A30 Pro
- Topping A90 Discrete vs Tom Christiansen Audio HPA-1
- Topping A90 Discrete vs Violectric HPA V550 PRO
- Topping A90 Discrete vs Soncoz SGA1
- Topping A90 Discrete vs Little Labs Monotor
- See all 10 comparisons
Ranked #5 of 19 in Headphone Amplifiers - Schiit Midgard: $259.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 118 dB, so its noise and distortion are inaudible. A rated 4.8 W into 32 ohms and 750 mW into 300 ohms is enough for nearly any headphone. It offers 6.35 mm and 4 pin XLR balanced outputs, RCA and XLR inputs, and passes the signal through to RCA and XLR outputs.
Cons: It costs more than the Topping A50 III, which matches its rating and measured slightly cleaner at 121 dB. It has no 4.4 mm balanced jack, so many portable balanced cables need an adapter. It is an amp only and needs a separate DAC.
Full Schiit Midgard review and specifications →
| Balanced Output | Yes (4-pin XLR, XLR line out) |
|---|---|
| Device Type | Headphone amp |
| Dimensions | 9” x 1.5” x 6” (229 x 38 x 152 mm) |
| Headphone Outputs | 6.35 mm, 4-pin XLR balanced |
| Inputs | RCA, XLR |
| Output Power (300 ohms) | 750 mW (manufacturer rated) |
| Output Power (32 ohms) | 4,800 mW (manufacturer rated) |
| Outputs | RCA, XLR |
| SINAD | 118 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 2 lbs (907 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #6 of 19 in Headphone Amplifiers - SMSL VMV P2: $999.00 Linsoul eBay
Pros: Audio Science Review measured 116 dB SINAD, so its noise and distortion are inaudible. A rated 6 W balanced into 32 ohms and 700 mW into 300 ohms is enough for nearly any headphone, including demanding planar magnetic and high impedance models. It offers 6.35 mm, 4.4 mm balanced and 4 pin XLR headphone outputs plus RCA and XLR inputs and outputs, so it can also work as a preamp.
Cons: It has only analog inputs, so you need a separate DAC to play music from a computer or phone. The Topping A50 III earns the same rating and measured cleaner for a fraction of the price, and the Topping A70 Pro publishes about twice the power for less. At 3.25 kg it is a large desktop unit.
Full SMSL VMV P2 review and specifications →
| Balanced Output | Yes (4.4 mm, 4-pin XLR, XLR pre out) |
|---|---|
| Device Type | Headphone amp |
| Dimensions | 11” x 2” x 9.3” (280 x 51 x 235.7 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced, 4-pin XLR balanced |
| Inputs | RCA, XLR |
| Output Power (300 ohms) | 700 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 6,000 mW (manufacturer rated, balanced) |
| Outputs | RCA, XLR |
| SINAD | 116 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 7.2 lbs (3.25 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #7 of 19 in Headphone Amplifiers - Topping L30: $149.00 Apos Audio eBay
Pros: Audio Science Review measured 121 dB SINAD, so its noise and distortion are inaudible. A rated 2.3 W into 32 ohms and 280 mW into 300 ohms drive nearly any headphone, including planar magnetic and high impedance models. It also has RCA preamp outputs and a compact footprint.
Cons: It has only RCA analog inputs, so you need a separate DAC. There is no balanced headphone output, and the only jack is 6.35 mm. The JDS Labs Atom Amp 2 earns the same rating and publishes more power for less.
Full Topping L30 review and specifications →
| Released | Jul 2020 (6 years ago) |
|---|---|
| Balanced Output | No |
| Device Type | Headphone amp |
| Dimensions | 3.9” x 1.3” x 5.3” (100 x 32 x 134 mm) |
| Headphone Outputs | 6.35 mm |
| Inputs | RCA |
| Output Power (300 ohms) | 280 mW (manufacturer rated) |
| Output Power (32 ohms) | 2,300 mW (manufacturer rated) |
| Outputs | RCA (preamp) |
| SINAD | 121 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #8 of 19 in Headphone Amplifiers - Topping L50: $169.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 121 dB, so the amp adds no audible noise or distortion. A rated 2,800 mW into 32 ohms and 540 mW into 300 ohms is enough for nearly any headphone, including demanding planar magnetic and high impedance models. It offers a 4-pin XLR balanced headphone output and accepts balanced 6.35 mm TRS or RCA inputs.
Cons: It has no DAC, so it needs a separate source with line outputs. The Topping A50 III rates slightly higher with more rated power for a little more, and the passthrough outputs only work while the amp is switched off.
Full Topping L50 review and specifications →
| Device Type | Headphone amp |
|---|---|
| Dimensions | 6.5” x 1.6” x 5.1” (166 x 41 x 129 mm) |
| Headphone Outputs | 6.35 mm, 4-pin XLR |
| Inputs | RCA, 6.35 mm TRS balanced |
| Output Power (300 ohms) | 540 mW (manufacturer rated) |
| Output Power (32 ohms) | 2,800 mW (manufacturer rated) |
| Outputs | RCA, 6.35 mm TRS (input passthrough, active only when the amp is off) |
| SINAD | 121 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 1.2 lbs (545 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #9 of 19 in Headphone Amplifiers - JDS Labs Atom Amp 2: $129 JDS Labs eBay
Pros: Audio Science Review measured a SINAD of 120 dB, so its noise and distortion are inaudible. A rated 2,650 mW into 32 ohms and 286 mW into 300 ohms drives nearly any headphone, and it offers both 6.35 mm and 4.4 mm outputs. It matches the rating of the Topping L50 for less and adds RCA preamp outputs for powered speakers.
Cons: It has no DAC, so you need a separate source. Its inputs are RCA and 3.5 mm only, with no balanced XLR input, and the Topping A50 III rates slightly higher for a bit more.
Full JDS Labs Atom Amp 2 review and specifications →
| Device Type | Headphone amp |
|---|---|
| Dimensions | 5.7” x 1.3” x 5.2” (145 x 34 x 131 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm |
| Inputs | RCA, 3.5 mm |
| Output Power (300 ohms) | 286 mW (manufacturer rated) |
| Output Power (32 ohms) | 2,650 mW (manufacturer rated) |
| Outputs | RCA |
| SINAD | 120 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 1 lbs (454 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #10 of 19 in Headphone Amplifiers - Tom Christiansen Audio HPA-1: $749.00 Tom Christiansen Audio eBay
Pros: Audio Science Review measured a SINAD of 119 dB, so its noise and distortion are inaudible and the amp is effectively transparent. A rated 1,200 mW into 32 ohms handles most planar magnetic headphones, with 250 mW into 300 ohms for high impedance dynamic models. It accepts both RCA and XLR inputs and uses a simple ALPS analog volume knob.
Cons: It costs several times more than the JDS Labs Atom Amp 2, which matches its rating with more than twice the rated power into 32 ohms. The only headphone output is a single 6.35 mm jack, so balanced headphone cables are not supported.
Full Tom Christiansen Audio HPA-1 review and specifications →
| Balanced Output | No |
|---|---|
| Device Type | Headphone amp |
| Dimensions | 5.5” x 2.2” x 8.3” (140 x 55 x 210 mm) |
| Headphone Outputs | 6.35 mm |
| Inputs | RCA, XLR |
| Output Power (300 ohms) | 250 mW (manufacturer rated) |
| Output Power (32 ohms) | 1,200 mW (manufacturer rated) |
| SINAD | 119 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob (ALPS RK27 potentiometer) |
| Weight | 1.9 lbs (850 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Tom Christiansen Audio HPA-1 vs Violectric HPA V550 PRO
- Tom Christiansen Audio HPA-1 vs Soncoz SGA1
- Tom Christiansen Audio HPA-1 vs SMSL VMV P2
- Tom Christiansen Audio HPA-1 vs Little Labs Monotor
- Tom Christiansen Audio HPA-1 vs Schiit Midgard
- Tom Christiansen Audio HPA-1 vs Rupert Neve Designs RNHP
- Tom Christiansen Audio HPA-1 vs Topping A90 Discrete
- Tom Christiansen Audio HPA-1 vs Topping A70 Pro
- See all 9 comparisons
Ranked #11 of 19 in Headphone Amplifiers - Violectric HPA V550 PRO: $3,599.99 Amazon eBay
Pros: Violectric rates it at 4,700 mW into 32 ohms and 1,450 mW into 300 ohms, enough to drive nearly any headphone, and Audio Science Review measured a SINAD of 111 dB, clean for nearly all listening. It offers 6.35 mm, 4-pin XLR and 4.4 mm balanced headphone outputs, RCA and XLR inputs and outputs, and a 256-step relay volume control with a remote.
Cons: The Topping A50 III rates higher and measured cleaner in Audio Science Review’s tests for a small fraction of the price. It is an analog amp only, so you still need a separate DAC.
Full Violectric HPA V550 PRO review and specifications →
| Balanced Output | Yes (4-pin XLR, 4.4 mm, XLR line out) |
|---|---|
| Device Type | Headphone amp |
| Dimensions | 11.4” x 3.1” x 9.8” (290 x 80 x 248 mm) |
| Headphone Outputs | 6.35 mm, 4-pin XLR balanced, 4.4 mm balanced |
| Inputs | 2 x RCA, XLR |
| Output Power (300 ohms) | 1,450 mW (manufacturer rated) |
| Output Power (32 ohms) | 4,700 mW (manufacturer rated) |
| Outputs | RCA, XLR |
| SINAD | 111 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob (256-step relay attenuator, remote) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #16 of 19 in Headphone Amplifiers - Chord Alto: $4,320.00 Headphones.com eBay
Pros: Chord rates it at 2,100 mW into 32 ohms and 281 mW into 300 ohms, enough for most planar magnetic headphones and high impedance models alike. It has 6.35 mm, 4.4 mm balanced and 4-pin XLR balanced headphone outputs, plus RCA, XLR and 4.4 mm inputs and RCA and XLR outputs for use as a preamp.
Cons: Audio Science Review measured a SINAD of only 85 dB, a real audible weakness, especially with sensitive headphones. It costs far more than the Sennheiser HDV 820, which rates higher and measured much cleaner, and its inputs are all analog, so you need a separate DAC for digital sources.
Full Chord Alto review and specifications →
| Released | 2025 (1 year ago) |
|---|---|
| Balanced Output | Yes (4.4 mm, 4-pin XLR, XLR line out) |
| Device Type | Headphone amp |
| Dimensions | 7.9” x 1.8” x 8.5” (200 x 44.5 x 215 mm) |
| Headphone Outputs | 6.35 mm, 4.4 mm balanced, 4-pin XLR balanced |
| Inputs | RCA, XLR, 4.4 mm balanced |
| Output Power (300 ohms) | 281 mW (manufacturer rated) |
| Output Power (32 ohms) | 2,100 mW (manufacturer rated) |
| Outputs | RCA, XLR |
| SINAD | 85 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
| Weight | 4.9 lbs (2.2 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #17 of 19 in Headphone Amplifiers - Fosi Audio SK01: $79.99 Amazon eBay
Pros: A rated 2,400 mW into 32 ohms gives plenty of drive for most headphones, including many planars, from 3.5 mm and 6.35 mm outputs. Bass, mid and treble tone controls let you adjust the balance without software. It is compact at 121 mm wide and costs little.
Cons: Audio Science Review measured a SINAD of only 85 dB, a real audible weakness that can show up as noise or hiss, especially with sensitive in-ears. It accepts only a 3.5 mm analog input, so it needs a separate source and has no balanced output. The Loxjie D30 rates higher and measures far cleaner for a little more.
Full Fosi Audio SK01 review and specifications →
| Released | Jul 2023 (3 years ago) |
|---|---|
| Balanced Output | No |
| Device Type | Headphone amp |
| Dimensions | 4.8” x 2” x 1.7” (121 x 51 x 43 mm) |
| Equalizer | Yes (bass, mid, treble tone controls) |
| Headphone Outputs | 3.5 mm, 6.35 mm |
| Inputs | 3.5 mm analog |
| Output Power (32 ohms) | 2,400 mW (manufacturer rated) |
| Outputs | 3.5 mm line out |
| SINAD | 85 dB (measured by Audio Science Review) |
| Weight | 0.6 lbs (290 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons