Topping
A90 Discrete
Introduced 2022$599 MSRP
Fully discrete version of Topping's flagship A90 headphone amp/preamp using the NFCA nested-feedback module, with 4-pin XLR and 4.4mm balanced outputs.
MSRP
$599
Used market · Excellent
$400est.
-33% vs MSRP
as of Aug 15, 2026MSRP to used market
From $599 at launch to $400 today (estimated).
Specifications
- Type
- solid-state headphone amplifier / preamp
- Topology
- fully discrete NFCA (nested feedback composite amplifier)
- Power output
- approx. 7.6W per channel into 16 ohms (balanced)
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