Short answer: the Loxjie D40 for better measured performance, the Loxjie D30 for the lower price. The Loxjie D40 ranks #28 of 43 DAC and headphone amp combos, rated 4.0/5, at $209.99. The Loxjie D30 ranks #31, rated 3.9/5, at $111.20, $98.79 cheaper.
What the Loxjie D40 does well: Audio Science Review measured a SINAD of 122 dB, so its noise and distortion are inaudible. It supports LDAC Bluetooth, which the Loxjie D30 lacks. 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.
What the Loxjie D30 does well: Audio Science Review measured a SINAD of 119 dB, so its noise and distortion are inaudible. Watch for: Loxjie doesn’t publish an output power figure into 32 ohms, so it is hard to know which headphones it can drive.
Buy the Loxjie D40 if measured performance is the priority over the price, or the Loxjie D30 if the price is the priority over measured performance.
Looking for alternatives? See the complete Headphone Amps and DACs rankings.
Specifications Side By Side
| Loxjie D40 | Loxjie D30 | |
|---|---|---|
| Price | $209.99 | $111.20 |
| Ranked | #28 of 43 in DAC and Headphone Amp Combos | #31 of 43 in DAC and Headphone Amp Combos |
| Device Type | DAC and headphone amp | DAC and headphone amp |
| SINAD | 122 dB (measured by Audio Science Review) | 119 dB (measured by Audio Science Review) |
| Headphone Outputs | 6.35 mm | - |
| Balanced Output | Yes (XLR line out) | - |
| Inputs | USB, optical, coaxial, I2S, AES, Bluetooth | - |
| Outputs | RCA, XLR | - |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, LDAC | SBC, aptX |
| DAC Chip | 2 x ES9068AS | ES9068AS |
| 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 Loxjie D40 compares with other leading options:
- Schiit Magni Unity with Mesh DAC vs Loxjie D40
- Khadas Tone2 Pro vs Loxjie D40
- SMSL D12 vs Loxjie D40
- Fosi Audio K7 vs Loxjie D40
- Loxjie D40 vs Qudelix T71
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
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
Loxjie D30: $111.20 Amazon eBay
Pros: Audio Science Review measured a SINAD of 119 dB, so its noise and distortion are inaudible. It combines a DAC and headphone amp in one box and adds Bluetooth with SBC and aptX. It costs relatively little for that measured performance.
Cons: Loxjie doesn’t publish an output power figure into 32 ohms, so it is hard to know which headphones it can drive. Its Bluetooth lacks AAC and LDAC. The SMSL DS20 rates clearly higher, with a published 500 mW into 32 ohms and a balanced output, though it costs more.
Full Loxjie D30 review and specifications →
| Bluetooth Codecs | SBC, aptX |
|---|---|
| DAC Chip | ES9068AS |
| Device Type | DAC and headphone amp |
| SINAD | 119 dB (measured by Audio Science Review) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons