Short answer: the Qudelix T71. It ranks #32 of 43 DAC and headphone amp combos by measured performance, rated 3.8/5, at $229; the Leckerton Audio UHA-6S.MKII ranks #40, rated 2.5/5, and costs $239, which makes this an easy call rather than a real tradeoff.
The Qudelix T71 is the better-sounding choice. Audio Science Review measured 110 dB SINAD, clean enough for nearly all listening. The catch: The maker does not publish a 32 ohm power figure, so it is hard to judge how well it drives demanding headphones.
What the Leckerton Audio UHA-6S.MKII does well: 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 tradeoff: 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.
Buy the Qudelix T71. It is rated higher than the Leckerton Audio UHA-6S.MKII and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Headphone Amps and DACs rankings cover every ranked option.
Specifications Side By Side
| Qudelix T71 | Leckerton Audio UHA-6S.MKII | |
|---|---|---|
| Price | $229.00 | $239 |
| Ranked | #32 of 43 in DAC and Headphone Amp Combos | #40 of 43 in DAC and Headphone Amp Combos |
| Device Type | DAC and headphone amp | DAC and headphone amp |
| SINAD | 110 dB (measured by Audio Science Review) | 94 dB (measured by Audio Science Review) |
| Headphone Outputs | 3.5 mm, 2.5 mm balanced, 4.4 mm balanced | - |
| Balanced Output | Yes (2.5 mm, 4.4 mm) | No |
| Inputs | USB-C | Micro USB, optical, coaxial, 3.5 mm analog |
| Battery Life | 4 to 10 hours | 10 hours (USB/digital), 30 hours (analog) |
| DAC Chip | 4 x ES9219C | Cirrus Logic CS4398 |
| Equalizer | Yes (20-band parametric/graphic) | - |
| Dimensions | 3.3” x 1.6” x 0.6” (84 x 40 x 16 mm) | 2.8” x 0.8” x 4.2” (70 x 20 x 106 mm) |
| Weight | 0.2 lbs (75 g) | 0.4 lbs (170 g) |
| Output Power (32 ohms) | - | 55 mW (manufacturer rated, stock AD8610 op-amp; 140 mW with AD8620) |
| Output Power (300 ohms) | - | 40 mW (manufacturer rated) |
| Volume Control | - | Analog |
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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
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
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