Amplifier Stereo Class D TPA3251 2x140W 4 Ohm

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This affordable Class D amplifier is based on a TPA3251D2 amplification chip, delivering 2x140W at 4Ω with high efficiency. It will therefore have no difficulty driving most speaker models. In addition, it benefits from PurePath Ultra HD technology, maintaining a very low distortion level across the entire frequency range while offering excellent sound precision.

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Reference : 21662
New product

54,90 €tax incl.

45,75 € tax excl.
Including 0,05 € for green tax

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Shipping date: 08-04-2026.

Orders placed before 12h (GMT+1) will generally be shipped the same day (working day).

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Facturation France
SAV France

2 Years warranty

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Class D Stereo Amplifier TPA3251 2x140W 4 Ohm

Class D Stereo Amplifier

This affordable Class D amplifier is based on a TPA3251D2 amplification chip, delivering 2x140W at 4Ω with high efficiency. It will therefore have no difficulty driving most speaker models. In addition, it benefits from PurePath Ultra HD technology, maintaining a very low distortion level across the entire frequency range while offering excellent sound precision.

The amplifier features a solid build quality, using proven audio-grade components. The power stage notably uses two 50V 1000µF Nichicon capacitors for electrical signal filtering.

In terms of connectivity, this model remains simple, with a stereo RCA input, a 3.5mm AUX output, and of course speaker binding posts. This notably allows for a 2.1 channel system setup with an active subwoofer.

Technical Specifications

Specifications
Product typeAmplifier
Amplifier typeClass D
Input1x Stereo RCA
OutputsSpeaker binding posts
1x 3.5mm AUX jack
Impedance4-8Ω
Amplification chipTPA3251D2
Power2x 80W @ 8Ω, THD+N 1%, BTL, 36V
2x 140W @ 4Ω, THD+N 1%, BTL, 36V
2x 175W @ 3Ω, THD+N 1%, BTL, 36V

2x 35W @ 8Ω, THD+N 1%, BTL, 24V
2x 65W @ 4Ω, THD+N 1%, BTL, 24V
2x 85W @ 3Ω, THD+N 1%, BTL, 24V
THD+N0.005% @ 1W 4Ω
PSRR60dB
SNR> 111dB (A-Weighted)
General
Dimensions180 x 104 x 42mm
Power supply24-36VDC (sold separately)
Weight542g
Package1x Stereo Class D Amplifier TPA3251
 
Data sheet
InputRCA
OutputJack 3.5mm
OutputSpeaker terminal
ColorBlack
Channel2 (Stereo)
ClassClass D / T
Amplifier chipTPA3251D2
Power (W)140.0
Remote ControlNo
 
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Amplifier Stereo Class D TPA3251 2x140W 4 Ohm
This affordable Class D amplifier is based on a TPA3251D2 amplification chip, delivering 2x140W at 4Ω with high efficiency. It will therefore have...

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