Short answer: the Khadas Tone2 Pro. It ranks #22 of 43 DAC and headphone amp combos by measured performance, rated 4.2/5, at $159; the Loxjie D40 ranks #28, rated 4.0/5, and costs $209.99, so there is little reason to consider the other one.
Why pick the Khadas Tone2 Pro: Audio Science Review measured a SINAD of 118 dB, so its noise and distortion are inaudible. Watch for: Khadas rates it at 211 mW into 32 ohms on the balanced output, enough for most headphones but short of what many planar magnetic models want.
What the Loxjie D40 does well: Audio Science Review measured a SINAD of 122 dB, so its noise and distortion are inaudible. The tradeoff: Loxjie doesn’t publish a 32 ohm power figure, and its headphone output is a single 6.35 mm jack with no balanced headphone option.
Buy the Khadas Tone2 Pro. It is rated higher than the Loxjie D40 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Headphone Amps and DACs rankings.
Specifications Side By Side
| Khadas Tone2 Pro | Loxjie D40 | |
|---|---|---|
| Price | $159.00 | $209.99 |
| Ranked | #22 of 43 in DAC and Headphone Amp Combos | #28 of 43 in DAC and Headphone Amp Combos |
| Device Type | DAC and headphone amp | DAC and headphone amp |
| SINAD | 118 dB (measured by Audio Science Review) | 122 dB (measured by Audio Science Review) |
| Output Power (32 ohms) | 211 mW (manufacturer rated, balanced) | - |
| Output Power (300 ohms) | 83 mW (manufacturer rated, balanced) | - |
| Headphone Outputs | 3.5 mm, 4.4 mm balanced | 6.35 mm |
| Balanced Output | Yes (4.4 mm) | Yes (XLR line out) |
| Inputs | USB-C, coaxial, Bluetooth (with optional BT Magic dongle) | USB, optical, coaxial, I2S, AES, Bluetooth |
| Outputs | RCA, balanced RCA | RCA, XLR |
| DAC Chip | ES9038Q2M | 2 x ES9068AS |
| Volume Control | Hardware knob | - |
| Bluetooth Codecs | - | SBC, AAC, aptX, aptX HD, LDAC |
| Dimensions | - | 9.4” x 1.7” x 7.7” (240 x 43 x 195 mm) |
| Weight | - | 2.4 lbs (1,100 g) |
Related Amp and DAC Comparisons
How Khadas Tone2 Pro compares with other leading options:
- SMSL DS20 vs Khadas Tone2 Pro
- Tanchjim Luna vs Khadas Tone2 Pro
- Khadas Tone2 Pro vs SMSL D12
- Fosi Audio SK02 vs Khadas Tone2 Pro
- Khadas Tone2 Pro vs Fosi Audio K7
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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The Two Amps and DACs In Full
Khadas Tone2 Pro: $159.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 118 dB, so its noise and distortion are inaudible. It offers 3.5 mm and 4.4 mm balanced headphone outputs, RCA and balanced RCA line outputs, USB-C and coaxial inputs, and optional Bluetooth through an add-on dongle, and it rates higher than the Woo Audio WA11 Topaz for far less.
Cons: Khadas rates it at 211 mW into 32 ohms on the balanced output, enough for most headphones but short of what many planar magnetic models want. The Fosi Audio SK02 matches its rating with much more balanced power for less, and Bluetooth requires buying the separate dongle.
Full Khadas Tone2 Pro review and specifications →
| Balanced Output | Yes (4.4 mm) |
|---|---|
| DAC Chip | ES9038Q2M |
| Device Type | DAC and headphone amp |
| Headphone Outputs | 3.5 mm, 4.4 mm balanced |
| Inputs | USB-C, coaxial, Bluetooth (with optional BT Magic dongle) |
| Output Power (300 ohms) | 83 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 211 mW (manufacturer rated, balanced) |
| Outputs | RCA, balanced RCA |
| SINAD | 118 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Loxjie D40: $209.99 Amazon eBay
Pros: Audio Science Review measured a SINAD of 122 dB, so its noise and distortion are inaudible. It packs USB, optical, coaxial, I2S, AES and Bluetooth inputs with LDAC, aptX HD and AAC, plus RCA and balanced XLR line outputs for powered speakers or a separate amp.
Cons: Loxjie doesn’t publish a 32 ohm power figure, and its headphone output is a single 6.35 mm jack with no balanced headphone option. The SMSL DS20 rates higher for a little less, and at 1.1 kg in a wide chassis it is bulky for a desk.
Full Loxjie D40 review and specifications →
| Balanced Output | Yes (XLR line out) |
|---|---|
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | 2 x ES9068AS |
| Device Type | DAC and headphone amp |
| Dimensions | 9.4” x 1.7” x 7.7” (240 x 43 x 195 mm) |
| Headphone Outputs | 6.35 mm |
| Inputs | USB, optical, coaxial, I2S, AES, Bluetooth |
| Outputs | RCA, XLR |
| SINAD | 122 dB (measured by Audio Science Review) |
| Weight | 2.4 lbs (1,100 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons