Topping · Headphone amp
Topping A90D
$1099
A fully balanced reference headphone amp with the headroom to drive anything from sensitive IEMs to 600 Ω planars.
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- Bench-verified in-house before it ships
- 30-day in-home audition — no restocking fee
- 5-year extended warranty available
The detail
Why we stock it
The A90D is a no-excuses headphone amplifier. With 8.7 W into 32 Ω on the balanced output it has the current to control demanding planars, while a true low-gain stage and relay-protected outputs keep sensitive in-ears quiet and safe.
Three gain settings, balanced and single-ended outputs, and a pre-amp mode make it the hub of a desktop rig. We pair it most often with the D90LE DAC over XLR.
Specifications
| Output power | 8.7 W @ 32 Ω (balanced) |
|---|---|
| THD+N | −123 dB |
| Gain settings | Low / mid / high (3-stage) |
| Outputs | 4-pin XLR · 4.4 mm · 6.35 mm |
| Pre-amp mode | Yes — line out to active speakers |
| Output impedance | < 0.1 Ω |
