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Topping A90 Discrete Headphone Amplifier
$479
$599

Topping A90 Discrete Headphone Amplifier

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$479
$599
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The A90 Goes High Performance

The Topping A90D is a discrete headphone amplifier that delivers a clean, high-headroom approach to desktop amplification. The original A90 already brought a host of high-end features to the table with impressive, low-noise performance—and now, the “D” version of this classic amp comes with Topping’s rock-solid Discrete Nested Feedback Composite technology. That amounts to an improvement in total harmonic distortion and an impressive increase in output power for a richer, less-distorted experience. Under the hood, you’ll find a new ground loop noise terminator, 12-volt trigger interface, a 145-decibel dynamic range, and a host of I/O capabilities including 4-pin XLR and 4.4-millimeter balanced outputs as well as commensurate inputs on the front end—offering the ultimate engine to drive even your most finicky pair of headphones or IEMs.

Topping A90 Discrete Headphone Amplifier

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Specs

  • Topping
  • Discrete NFCA module architecture
  • Gain settings: Low and high
  • Output power: 9800 mW (x 2)
  • Output voltage: 49 Vpp (balanced), 25 Vpp (SE)
  • Output current: 5A (peak), 1.1A (continuous)
  • Output impedance: <0.1 ohm
  • THD+N: <0.000055%
  • Dynamic range: 145 dB
  • Outputs (front): 4-pin XL, 4.4 mm balanced, 6.35 mm SE
  • Outputs (back): Single-ended RCA, balanced XLR
  • Inputs: Balance XLR, single-ended RCA
  • Dimensions: 6.3 x 8.7 x 1.7 in (16 x 22.2 x 4.5 cm)

Included

  • Remote control
  • AC cable
  • 6.35 mm to 3.5 mm adaptor
  • Owner’s manual
Topping A90 Discrete Headphone Amplifier

Shipping

Estimated ship date is Dec 4, 2024 PT.

Payment will be collected at checkout. Cancellations are accepted up to 2 hours after checkout, after which all sales final.

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Top Customer Questions4
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Question
Can I hook my D50S or EX5 to the A90D to act as the DAC?
May 14, 2023
Top Answer
Jun 18, 2024
Question
I bought this but haven't been able to get audio to my headphones...here's my system: Wiim Pro Plus optical to Schitt Modi 3 RCA output to Topping A9D RCA input. I choose the selector for RCA and the proper headphone output and...bupkiss! nothing at all. Is there something I'm overlooking? As a newbie to this hobby, I realize I have much to learn. Thank you.
Nov 7, 2024
Top Answer
trog69
36
Sorry, but I think the handoff from the optical to RCA. If you can, connect the Modi to your PC via USB and see if you get some signal to the 'phones.Read More
Nov 26, 2024
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