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Topping A90 Headphone Amplifier
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Topping A90 Headphone Amplifier

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Product Description
At the top of Topping’s highly regarded A-series, the A90 is a headphone amplifier with few rivals. Capable of functioning as both a headphone amp and a preamp, this flagship unit is outfitted with NFCA (Nested Feedback Composite Amplifier) modules, which work together with ultra-high-gain feedback technology for impressive AC and DC control Read More
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VNTG-4U
6
Jun 11, 2021
It isn't THX, is it?
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jgillingham
177
Jul 1, 2021
No.
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salamri
19
Apr 14, 2021
is it class A
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Mr_Bill
1
Oct 10, 2022
No, the A30Pro is when it detects 250 ohm or higher, but the A90 isn't. It runs really cool compared to a class A. Lightly warm to the touch but barely noticeable.
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