FOSI AUDIO V3-48V Stereo Class D Amplifier TPA3255 2x225W 4 Ohm

A powerful amplification stage

The Fosi Audio V3 uses a TI TPA3255 amplification chip, which delivers true sound quality with class D efficiency and very low distortion. Coupled with audiophile components, the TI TPA3255 allows the V3 to maintain high stability even at very high power. In terms of OPA, the Fosi Audio V3 is equipped with DIP8-mounted NE5532, making them easy to replace. They can be replaced by MUSES02s, AOP2604APs or AOP2134PAs, for example.

Efficient heat dissipation

The heat dissipation system of the Fosi Audio V3 allows it to be used at high power for extended periods without compromising its performance or causing harmful effects. In fact, the V3's enclosure incorporates vents on its upper and lower sides as well as an internal radiator. This innovative cooling system design greatly improves the airflow and heat dissipation of the Fosi Audio V3 amplifier.

Specifications
Product type	Stereo class D Amplifier
Inputs	1x Stereo RCA
Outputs	1x Speaker terminals 1x 3.5mm pre-out jack
Amp. chip	TI TPA3255
OPA	2x NE5532
Output power	2x 225W @ 4Ω (THD+N 1%) 2x 160W @ 8Ω (THD+N 1%) 2x 270W @ 4Ω (THD+N 10%) 2x 190W @ 8Ω (THD+N 10%)
Speaker impedance	2Ω - 8Ω
Frequency response	20Hz - 20kHz (±0.1dB)
SINAD	≥ 88dB
THD	< 0.003%
SNR	≥ 110dB
Volume control	Logarithm A pot

Specifications

Product type

Stereo class D Amplifier

Inputs

1x Stereo RCA

Outputs

1x Speaker terminals
1x 3.5mm pre-out jack

Amp. chip

TI TPA3255

OPA

2x NE5532

Output power

2x 225W @ 4Ω (THD+N 1%)
2x 160W @ 8Ω (THD+N 1%)

2x 270W @ 4Ω (THD+N 10%)
2x 190W @ 8Ω (THD+N 10%)

Speaker impedance

2Ω - 8Ω

Frequency response

20Hz - 20kHz (±0.1dB)

SINAD

≥ 88dB

THD

< 0.003%

SNR

≥ 110dB

Volume control

Logarithm A pot

General
Power supply	24 - 48V DC
Dimensions	166 x 105 x 35 mm
Color	Black
Package	1x Fosi Audio V3 1x Power adapter 48V 5A

General

Power supply

24 - 48V DC

Dimensions

166 x 105 x 35 mm

Color

Black

Package

1x Fosi Audio V3
1x Power adapter 48V 5A

Input	RCA
Output	Jack 3.5mm
Output	Speaker terminal
Color	Black
Channel	2 (Stereo)
Class	Class D / T
Amplifier chip	TPA3255
Power (W)	225.0
Remote Control	No

un standard
J'avais besoin de remplacer mon vieil ampli Braun le temps qu'il se fasse restaurer. Même si le programme est très différent, la solution "de dépannage" me ravit. Accompagné d'un petit sélecteur de source Audiophonics (que j'avais déjà), ce Fosi fait très bien le boulot.
Et encore plus quand on met une vingtaine d'euros en plus dans deux opa2604: mes colonnes Ellipson ont trouvé de quoi les nourrir avec force et délicatesse.
Je confirme ce qui est dit sur les forums: cet ampli est un classique, dont l'évolutivité est une qualité.

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