6 amps and DACs made our rankings with a built-in battery, so they run without draining a phone and can travel. Battery life is listed on each card. Every one is rated from its SINAD as measured by Audio Science Review plus its rated output power, so a higher rating means a cleaner, more capable unit rather than a longer feature list.
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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| Select to compare | |||||||
|---|---|---|---|---|---|---|---|
| 7 | Topping G5 | $299.00 | 120 dB | 1,200 mW | Yes | DAC and headphone amp | |
| 17 | Chord Hugo 2 | $2,595.00 | 112 dB | 740 mW | No | DAC and headphone amp | |
| 27 | Woo Audio WA11 Topaz | $1,099 | 101 dB | 1,200 mW into 30 ohms | Yes | DAC and headphone amp | |
| 32 | Qudelix T71 | $229.00 | 110 dB | - | Yes | DAC and headphone amp | |
| 40 | Leckerton Audio UHA-6S.MKII | $239 | 94 dB | 55 mW | No | DAC and headphone amp | |
| 19 | Donner EM1 | $39.99 | 68 dB | 125 mW | No | Headphone amp |
DAC and Headphone Amp Combos
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 #17 of 43 in DAC and Headphone Amp Combos - Chord Hugo 2: $2,595.00 Headphones.com eBay
Pros: Audio Science Review measured 112 dB SINAD, clean for nearly all listening, and Chord rates it at 740 mW into 32 ohms, enough for most planar magnetic headphones. It is a battery powered portable unit with about 6 hours of play, Bluetooth with aptX, and optical, coaxial and USB inputs. RCA outputs let it double as a home DAC.
Cons: It costs far more than the SMSL DS20, which rates the same and measured higher SINAD. There is no balanced headphone output, the USB port is the older micro USB type, and battery life is short at about 6 hours.
Full Chord Hugo 2 review and specifications →
| Released | 2017 (9 years ago) |
|---|---|
| Balanced Output | No |
| Battery Life | 6 hours |
| Bluetooth Codecs | SBC, aptX |
| DAC Chip | Xilinx Artix-7 FPGA (Chord pulse array) |
| Device Type | DAC and headphone amp |
| Dimensions | 3.9” x 0.8” x 5.1” (100 x 21 x 130 mm) |
| Headphone Outputs | 3.5 mm, 6.35 mm |
| Inputs | Micro USB, optical, coaxial (3.5 mm), Bluetooth |
| Output Power (300 ohms) | 94 mW (manufacturer rated) |
| Output Power (32 ohms) | 740 mW (manufacturer rated) |
| Outputs | RCA |
| SINAD | 112 dB (measured by Audio Science Review) |
| Volume Control | Digital (1 dB steps) |
| Weight | 0.8 lbs (365 g) |
- 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 #32 of 43 in DAC and Headphone Amp Combos - Qudelix T71: $229.00 Qudelix eBay
Pros: Audio Science Review measured 110 dB SINAD, clean enough for nearly all listening. A built in 20 band parametric or graphic equalizer lets you tune your headphones, and it offers 3.5 mm plus 2.5 mm and 4.4 mm balanced outputs. Its battery runs 4 to 10 hours, and it weighs 75 g.
Cons: The maker does not publish a 32 ohm power figure, so it is hard to judge how well it drives demanding headphones. USB-C is the only input. The Loxjie D30 rates higher and measured cleaner for less.
Full Qudelix T71 review and specifications →
| Released | 2023 (3 years ago) |
|---|---|
| Balanced Output | Yes (2.5 mm, 4.4 mm) |
| Battery Life | 4 to 10 hours |
| DAC Chip | 4 x ES9219C |
| Device Type | DAC and headphone amp |
| Dimensions | 3.3” x 1.6” x 0.6” (84 x 40 x 16 mm) |
| Equalizer | Yes (20-band parametric/graphic) |
| Headphone Outputs | 3.5 mm, 2.5 mm balanced, 4.4 mm balanced |
| Inputs | USB-C |
| SINAD | 110 dB (measured by Audio Science Review) |
| Weight | 0.2 lbs (75 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ranked #40 of 43 in DAC and Headphone Amp Combos - Leckerton Audio UHA-6S.MKII: $239 Leckerton Audio eBay
Pros: It is a portable battery powered DAC and amp with micro USB, optical, coaxial and 3.5 mm analog inputs, lasting 10 hours from digital sources and 30 hours in analog mode. Audio Science Review measured a SINAD of 94 dB, fine for most headphones.
Cons: It is rated for only 55 mW into 32 ohms with its stock op amp, which suits in-ear monitors and easy headphones only, and sensitive in-ears may reveal hiss at 94 dB SINAD. It has no balanced output and still uses micro USB. The Pro-Ject Pre Box S2 Digital rates higher and measures cleaner, though it costs more.
Full Leckerton Audio UHA-6S.MKII review and specifications →
| Balanced Output | No |
|---|---|
| Battery Life | 10 hours (USB/digital), 30 hours (analog) |
| DAC Chip | Cirrus Logic CS4398 |
| Device Type | DAC and headphone amp |
| Dimensions | 2.8” x 0.8” x 4.2” (70 x 20 x 106 mm) |
| Inputs | Micro USB, optical, coaxial, 3.5 mm analog |
| Output Power (300 ohms) | 40 mW (manufacturer rated) |
| Output Power (32 ohms) | 55 mW (manufacturer rated, stock AD8610 op-amp; 140 mW with AD8620) |
| SINAD | 94 dB (measured by Audio Science Review) |
| Volume Control | Analog |
| Weight | 0.4 lbs (170 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Headphone Amplifiers
Ranked #19 of 19 in Headphone Amplifiers - Donner EM1: $39.99 Amazon eBay
Pros: It is a compact, inexpensive battery powered amp rated for about 12 hours per charge. Its XLR and 6.35 mm TRS combo input accepts a feed from a mixer or interface, and a rated 125 mW into 32 ohms is enough to drive most headphones.
Cons: Audio Science Review measured a SINAD of only 68 dB, a level where noise and distortion become a real audible weakness, especially with sensitive in-ears. There is only a single 3.5 mm output with no balanced option. The Topping A50 III costs more but rates far higher and measured transparent at 121 dB.
Full Donner EM1 review and specifications →
| Balanced Output | No |
|---|---|
| Battery Life | 12 hours |
| Device Type | Headphone amp |
| Dimensions | 1.6” x 1.6” x 4.1” (41 x 40.7 x 103.4 mm) |
| Headphone Outputs | 3.5 mm |
| Inputs | XLR/6.35 mm TRS combo |
| Output Power (32 ohms) | 125 mW (manufacturer rated) |
| SINAD | 68 dB (measured by Audio Science Review) |
| Weight | 0.2 lbs (95 g) |
- Reviews, Comparisons and Sound Samples