Short answer: the Leckerton Audio UHA-6S.MKII, though neither ranks well in its class. It ranks #40 of 43 DAC and headphone amp combos by measured performance, rated 2.5/5, at $239; the xDuoo DM-01 ranks #41, rated 2.4/5, and costs $279, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 43 DAC and headphone amp combos, and the SMSL RAW-MDA1, ranked #3 at $279.99, is a better place to start if measured performance matters.
The case for the Leckerton Audio UHA-6S.MKII: 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. The catch: 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.
The case for the xDuoo DM-01: It supports a long list of Bluetooth codecs, including LDAC, aptX Adaptive and LC3, alongside USB-C. The catch: Audio Science Review measured just 38 dB SINAD, a severe and audible level of noise and distortion.
Buy the Leckerton Audio UHA-6S.MKII. It is rated higher than the xDuoo DM-01 and costs less, which makes it the one to get unless you need something the other one does better.
Want more options? Browse the full Headphone Amps and DACs rankings.
Specifications Side By Side
| Leckerton Audio UHA-6S.MKII | xDuoo DM-01 | |
|---|---|---|
| Price | $239 | $279.00 |
| Ranked | #40 of 43 in DAC and Headphone Amp Combos | #41 of 43 in DAC and Headphone Amp Combos |
| Device Type | DAC and headphone amp | DAC and headphone amp |
| SINAD | 94 dB (measured by Audio Science Review) | 38 dB (measured by Audio Science Review) |
| Output Power (32 ohms) | 55 mW (manufacturer rated, stock AD8610 op-amp; 140 mW with AD8620) | 1,500 mW (manufacturer rated) |
| Output Power (300 ohms) | 40 mW (manufacturer rated) | - |
| Balanced Output | No | No |
| Inputs | Micro USB, optical, coaxial, 3.5 mm analog | USB-C, Bluetooth |
| Battery Life | 10 hours (USB/digital), 30 hours (analog) | - |
| DAC Chip | Cirrus Logic CS4398 | CS43131 |
| Volume Control | Analog | - |
| Dimensions | 2.8” x 0.8” x 4.2” (70 x 20 x 106 mm) | 6.9” x 3.4” x 2.4” (175 x 86 x 60 mm) |
| Weight | 0.4 lbs (170 g) | 1.6 lbs (730 g) |
| Headphone Outputs | - | 6.35 mm |
| Outputs | - | AUX line out |
| Bluetooth Codecs | - | SBC, AAC, aptX, aptX HD, aptX Adaptive, LDAC, LC3 |
Related Amp and DAC Comparisons
More top alternatives to Leckerton Audio UHA-6S.MKII:
- Loxjie D40 vs Leckerton Audio UHA-6S.MKII
- Qudelix T71 vs Leckerton Audio UHA-6S.MKII
- Neutron HiFi DAC V1 vs Leckerton Audio UHA-6S.MKII
- Pro-Ject Pre Box S2 Digital vs Leckerton Audio UHA-6S.MKII
- Leckerton Audio UHA-6S.MKII vs HiFime UDA38Pro
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
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
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