Topping A90 Review: Ranked #5 of 30

Last updated: October 13, 2026

The Topping A90 ranks #5 out of 30 total Headphone Amplifiers for sound quality. See all Headphone Amps and DACs rankings for every top pick.

Brand: Topping

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Topping A90 - ranked #5 of 30 Headphone Amplifiers · Editor's rating 4.8/5

#5 Topping A90 Discontinued eBay

Newer model: the Topping A90 Discrete, ranked lower, rated 4.8/5. See every Topping A90 generation.

Pros: Audio Science Review measured a SINAD of 121 dB, so its noise and distortion are inaudible and it is effectively transparent. A rated 6,400 mW into 32 ohms is enough for nearly any headphone, including hard to drive planars, with 1,000 mW into 300 ohms for high impedance models. It offers balanced outputs and RCA, XLR inputs.

Cons: Discontinued and replaced by the Topping A90 Discrete. It has no built in DAC, so it needs a separate DAC or source with a line output.

Released2020 (6 years ago)
Balanced OutputYes
Device TypeHeadphone amp
Headphone Outputs6.35 mm, 4.4 mm, 4-pin XLR
InputsRCA, XLR
Output Power (300 ohms)1,000 mW
Output Power (32 ohms)6,400 mW
SINAD121 dB (measured by Audio Science Review)

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