Tuesday 25 January, 2022

Topping TP21 TA2021 Class T Amp Headphone Amplifier 2x25W

This product was added to our catalog on Wednesday 21 November, 2012.


Add to Cart:
FREE 3.5mm Headphone Jet to RCA Cable!!  
   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 real 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.
Build in Op amp for headphone liner boost, easy to drive any headphone in 16 Ohm~200 Ohm impedance loading,the speaker cut off automatic when the earphone jack plug in.  
Totally 3000*2+220*5=7100uF super large capacity with ELNA ‘Pioneer’ Audiophile Grade Cap, very low ESR and high speed response sounds much clearly in detail and huge in deep bass.
High grade component in use, there are Dale resistor, ELNA Caps, ALPS volume control, gold coat PCB,pure copper RCA socket with gold coat
It will be amazed when drive to high sensitive (more than 86dB) speaker !!!
You can’t believe your ear but really hear the great sound from this little T amp !!!
  • Using Tripath TA2021B
  • High output power,about 25W*2.
  • Include headphone amplifier.
  • "Audiophile"Quality Sound with high efficiency.
  • Small size with excellent design.


  • Tripath TA2021B
  • Output Power 2 x 25W @ 4ohm, 2 x 14W @ 8ohm
  • Signal-to-Noise Ratio (SNR) 100dB
  • Dynamic Range 100dB
  • IHF-IM Distortion 0.1% @ 1W, 4ohm

THD Distortion:

  • 0.05% @ 13W, 4ohm
  • 0.1% @ 15.5W 4ohm
  • 10% @ 25W 4ohm
  • 10% @ 14W 8ohm


  • Output Power 2 x 60mW @ 16ohm, 2 x 120W @ 32ohm

THD Distortion:

  • 0.01% @ 100mW, 32ohm

HIFI Electronic Components:

  • TOKO digital amplifier Inductance
  • ALPS Potentiometer
  • DALE Resistance
  • nichicon FW Capacitance
  • ERO Capacitance
  • EPCOS Capacitance

Power input:

  • Power socket (5.5mm/2.1mm) x 1
  • Power Supply input DC 14V4A

Audio input:

  • Audio IN RCA (Left/Right) x 1


  • Speaker OUT (Left) x 1 pair (+ / -)
  • Speaker OUT (Right) x 1 pair (+ / -)
  • Headphone OUT(3.5mm) x 1


  • about (W)115mm x (H)45mm x (D)175mm

Net Weight:

  • Amplifier 590g
  • Amplifier + AC adapter 900g

Package included:

  • 1 x TP21 Amplifier
  • 1 x 14V4A AC adapter
  • 1 x User's manual

  • Model: TOP-TAMP-TP21
  • Shipping Weight: 0.95kg
  • Manufactured by: Topping

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