Topping A90 Discrete Flagship NFCA Ultra Low Distortion Headphone Amplifier
Description
"Product Description
TOPPING A90 Discrete Hi‑Fi Headphone Amplifier, a compact, fully discrete desktop amp designed for high‑end headphones and IEMs. It doubles as a headphone amp plus line‑level preamp, making it ideal for integrating into a desktop or hi‑fi chain.
The A90 Discrete uses four NFCA‑Discrete modules (each with 39 transistors) in a fully balanced circuit, delivering up to about 6.7–9.8 W per channel into 16–32 Ω depending on load and connection type, while maintaining ultra‑low distortion (<0.000055% THD+N) and high dynamic range (≈145 dB).
It features two selectable gain modes to suit both sensitive IEMs and high‑impedance or planar headphones, plus R‑2‑R relay‑based volume control for smooth, precise adjustment. Outputs include 4‑pin XLR, 4.4 mm balanced, and 6.35 mm single‑ended, giving broad compatibility with high‑end headphones and cables.
Additional highlights:
Ground‑loop noise terminator
12 V trigger input for system integration
Can be paired with TOPPING’s EXT90 extender for extra balanced inputs
This item is tested and fully working, unless otherwise stated. Ships with the unit and any included accessories (cables, power supply, remote, etc.) as shown or described. A premium‑sounding, compact amp for discerning headphone and hi‑fi users."""
TOPPING A90 Discrete Hi‑Fi Headphone Amplifier, a compact, fully discrete desktop amp designed for high‑end headphones and IEMs. It doubles as a headphone amp plus line‑level preamp, making it ideal for integrating into a desktop or hi‑fi chain.
The A90 Discrete uses four NFCA‑Discrete modules (each with 39 transistors) in a fully balanced circuit, delivering up to about 6.7–9.8 W per channel into 16–32 Ω depending on load and connection type, while maintaining ultra‑low distortion (<0.000055% THD+N) and high dynamic range (≈145 dB).
It features two selectable gain modes to suit both sensitive IEMs and high‑impedance or planar headphones, plus R‑2‑R relay‑based volume control for smooth, precise adjustment. Outputs include 4‑pin XLR, 4.4 mm balanced, and 6.35 mm single‑ended, giving broad compatibility with high‑end headphones and cables.
Additional highlights:
Ground‑loop noise terminator
12 V trigger input for system integration
Can be paired with TOPPING’s EXT90 extender for extra balanced inputs
This item is tested and fully working, unless otherwise stated. Ships with the unit and any included accessories (cables, power supply, remote, etc.) as shown or described. A premium‑sounding, compact amp for discerning headphone and hi‑fi users."""
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All items are in the picture.
【Note only for products that are turned on. Products that do not turn on are not eligible】
The power supply for this product is AC100V 50/60Hz.
A transformer may be required in some countries.
Please prepare the transformer on the purchase side.
The power supply for this product is AC100V 50/60Hz.
A transformer may be required in some countries.
Please prepare the transformer on the purchase side.
Outlet specifications →A type
If it is different from A type, a converter is required.
You in areas other than 100V.
If you use the transformer I sell, you can use it in areas other than 100V.
ebay.com
https://www.ebay.com/itm/373547463184
ebay.uk
https://www.ebay.com/itm/373547520813
ebay.eu
https://www.ebay.com/itm/373547520926
ebay.au
https://www.ebay.com/itm/373547520958
https://www.ebay.com/itm/373547520958
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* It may not be possible in some areas
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