Topping TP21 25WPC Class T TA2021 Digital Amplifier + Headphone Amp

SKU: FM062
Price: US$81.98
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  • Ideal for multimedia sound applications.
  • High grade components provide audiophile performance.
  • Space-saving small footprint perfect for desktop applications.
  • Tripath TA2021 Class-D/Class-T architecture for clean, efficient sound.


The Topping TP 21 is a so-called Class T integrated amplifier, based on the TA 2021 chipset.  the chip makes use of a kind of "Digital Power Processing", this is, more or less, a Class D amplifier with high rate switching properties. That is why they put the word "digital" into it. Actually, there's nothing really digital inside, not in terms of D/A conversion. You can view the official TA2021 datasheet, with detailed tech specs,  The Topping TP 21 is nothing else than a pure and simple application suggested by the chipset datasheet. No magic.


Technical Parameters:

Output Power 2 x 25W @ 4ohm, 2 x 14W @ 8ohm 
Signal-to-Noise Ratio (SNR) 98dB 
Dynamic Range 100dB 
IHF-IM Distortion 0.1% @ 1W, 4ohm 
THD Distortion
0.03% @ 9W, 4ohm
0.1% @ 12W 4ohm
0.1% @ 7W 8ohm
10% @ 25W 4ohm
10% @ 14W 8ohm 
Speaker OUT (Left) x 1 pair (+ / -)
Speaker OUT (Right) x 1 pair (+ / -)

Dimensions :(W)113mm x (H)43mm x (D)172mm




1 x TP21 Amplifier

1 x Power Supply

Customer Questions & Answers

Edward Cameron-Reid
Edward Cameron-Reid

Hi  As I live in Australia, I would require a 240V power supply for the Topping TP21.  Can you supply the TP21 with a 240V power supply?

8/11/15 11:35 PM Asked.

Hi, This item just have DC Power 12-24V, Thanks.

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