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Topping A90

Topping A90

Regular price $499
Sale price $499 Regular price $499.00

Amplifier type More information
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Connectivity More information
Connectivity refers to the method in which the headphones connect to the audio source. Headphones can be either wired or wireless.


Portability More information
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Not Portable

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Topping A90

Regular price $499
Sale price $499 Regular price $499.00

The Topping A90 Headphone Amp is the companion for the highly reviewed Topping D90 DAC. It is already receiving rave reviews on Audio Science Review. The Topping A90 is an ultra-high-performance headphone amp that can also work as a pre-amp. It comes with three gain settings and has great performance numbers including <0.00006% THD+N, 145dB DNR, <0.2uVrms Noise, < 0.1-ohm output impedance, and 7200mW x 2 max output power.


The Topping A90 headphone amp comes equipped with NFCA modules (Nested Feedback Composite Amplifier), which along with ultra high-gain feedback technology provide excellent AC and DC performance. High output current capability of the A90 allows it to drive low impedance headphones with ease. Furthermore, ultra-low noise of 0.2uV and high dynamic range of 145dB drive the most sensitive IEMs without producing any audible noise or dark background.

For outputs, the Topping A90 headphone amp comes with a 4-pin XLR, a 4.4mm Balanced, and a 6.35mm Single Ended port. The Single-Ended 25V pp with Balanced 49V pp high output voltage along with high output current and less than 0.1-ohm output impedance, Topping A90 is compatible with a wide range of headphones. It also comes with the three-step gain setting and a wide variety of sensitivity settings that allow the amp to drive sensitive IEMs to power demanding headphones.

Being equipped with NFCA modules, Topping A90 headphone amp can also work as a pre-amp. In pre-amp mode, the 20ohm single-ended output and the 40-ohm balanced output impedance make it easily compatible with various power amps. You can also connect the TOPPING A90 with the D90 DAC in pre-amp mode to drive active speakers and create a high-performing sound system.

Tech Specs

  • Type Analog / Balanced Headphone amplifier / Preamplifier
  • Connectivity 4 pin XLR / 4.4 Balanced / 6.35mm SE output
  • Gain Low / Medium / High
  • Technology NFCA Module Amplification with Ultra High Gain Feedback
  • THD 0.0006%
  • DNR 145 Decibels
  • Noise 0.2uVrms
  • Output Impedance 0.1 ohms
  • Max power output 7600W x 2

In The Box

  • Topping A90 Headphone Amp
  • Power cord
  • 6.35mm to 3.5mm adapter
  • User's manual
Ultra high-performing headphone amplifier Topping A90
headphone amp and pre-amp Topping A90
Ultra high-performing NFCA modules

full balanced headphone amp
Wide range of adaptation to headphones
3-step gain setting
Headphone amp and pre-amp
Pairs easily with D90 DAC
Great companion to D90 DAC
Topping A90 specs
Topping A90