Short answer: the Chord Mojo 2. It ranks #21 of 43 DAC and headphone amp combos by measured performance, rated 4.3/5, at $566.86; the Woo Audio WA11 Topaz ranks #27, rated 4.1/5, and costs $1,099, so there is little reason to consider the other one.
The case for the Chord Mojo 2: Audio Science Review measured a SINAD of 110 dB, which is clean for nearly all listening. Watch for: It costs far more than the TRN Black Pearl, which rates higher and measured cleaner at 117 dB.
What the Woo Audio WA11 Topaz does well: 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. The catch: The Khadas Tone2 Pro rates higher and measured cleaner in Audio Science Review’s tests for a small fraction of the price.
Buy the Chord Mojo 2. It is rated higher than the Woo Audio WA11 Topaz and costs less, so only choose the other one for a particular feature it does better.
Still deciding? The full Headphone Amps and DACs rankings cover every ranked option.
Specifications Side By Side
| Chord Mojo 2 | Woo Audio WA11 Topaz | |
|---|---|---|
| Price | $566.86 | $1,099 |
| Ranked | #21 of 43 in DAC and Headphone Amp Combos | #27 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) | 101 dB (measured by Audio Science Review) |
| Output Power (32 ohms) | 600 mW into 30 ohms (manufacturer rated) | 1,200 mW into 30 ohms (manufacturer rated, balanced) |
| Output Power (300 ohms) | 90 mW (manufacturer rated) | 120 mW (manufacturer rated) |
| Headphone Outputs | 3.5 mm, 4.4 mm | 6.35 mm, 4.4 mm balanced |
| Inputs | USB-C, Micro-USB, optical, coaxial | USB-C, 4.4 mm balanced analog |
| Equalizer | Yes (UHD DSP tone control) | - |
| Dimensions | 3.3” x 2.4” x 0.9” (83 x 62 x 22.9 mm) | 6.1” x 3.3” x 1.1” (155 x 85 x 27 mm) |
| Weight | 0.4 lbs (185 g) | 0.9 lbs (426 g) |
| Balanced Output | - | Yes (4.4 mm) |
| Battery Life | - | 6 hours |
| DAC Chip | - | ESS Sabre (model not specified) |
| Volume Control | - | Hardware knob |
Related Amp and DAC Comparisons
How Chord Mojo 2 compares with other leading options:
- SMSL DO400 vs Chord Mojo 2
- D&A Alpha Pro vs Chord Mojo 2
- JDS Labs Element IV vs Chord Mojo 2
- Chord Mojo 2 vs Gustard A20H
- Chord Mojo 2 vs Luxsin X9
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
Chord Mojo 2: $566.86 Amazon eBay
Pros: Audio Science Review measured a SINAD of 110 dB, which is clean for nearly all listening. A rated 600 mW into 30 ohms is enough for most planar magnetic headphones, unusual muscle for something this portable. It takes USB-C, Micro-USB, optical and coaxial inputs, offers both 3.5 mm and 4.4 mm outputs, and includes built-in DSP tone control.
Cons: It costs far more than the TRN Black Pearl, which rates higher and measured cleaner at 117 dB. The Fosi Audio DS3 also matches its rating for much less. At 185 g it is much bigger and heavier than a typical dongle, so it is less convenient to carry with a phone.
Full Chord Mojo 2 review and specifications →
| Released | 2022 (4 years ago) |
|---|---|
| Device Type | DAC and headphone amp |
| Dimensions | 3.3” x 2.4” x 0.9” (83 x 62 x 22.9 mm) |
| Equalizer | Yes (UHD DSP tone control) |
| Headphone Outputs | 3.5 mm, 4.4 mm |
| Inputs | USB-C, Micro-USB, optical, coaxial |
| Output Power (300 ohms) | 90 mW (manufacturer rated) |
| Output Power (32 ohms) | 600 mW into 30 ohms (manufacturer rated) |
| SINAD | 110 dB (measured by Audio Science Review) |
| Weight | 0.4 lbs (185 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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
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