V3 MONO is a mono channel amplifier. To achieve 2 channel amplifier effect, two V3 MONO are needed to connect two speakers.

Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs

Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs

Q: No sound change after switching the gain switch?

The gain switch on the V3 MONO only works with the RCA input. When using RCA mode, switching the gain setting will noticeably change the volume. (If it's already set to RCA mode, the output level from the preamp is usually sufficient.)

Q: Would the noise still occur if no audio input cables are connected?

Try replacing the audio source, using well-shielded audio cables, and switching to a different speaker.

Q: Doesn't work in standby mode?

Use a separate power supply and power strip for each V3 MONO to avoid ground-loop noise affecting the standby function; if the light dims but the unit doesn't automatically shut down, please try replacing high-quality RCA cables.

Q: V3 MONO don't have volume control or knobs?

Yes. V3 MONO is a pure power amplifier, it is recommended to use it with a DAC, preamplifier, or player with volume control.

Product ID: 641781472

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Details

Item dimensions L x W x H
14.2 x 10.7 x
Voltage
48 Volts
Manufacturer
Fosi Audio
Maximum supply voltage
48 Volts
Minimum supply voltage
32 Volts

⚡240W peak power @4Ω

❄️Advanced full-body heat dissipation

🛠️TPA3255 Class-D chip with PFFB tech

Frequently Bought Together

Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp with TPA3255, 240W for HiFi Home Theater AVR Receiver Component, RCA/XLR Balanced Inputs 48V/5A Power

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Description

🎶 Power your passion with precision and style!

COOL UNDER PRESSURE - Full-body heat dissipation and dual side vents ensure stable, long-lasting performance without overheating.
NEXT GEN SOUND CLARITY - Innovative PFFB technology minimizes distortion and maximizes frequency response for audiophile-grade audio fidelity.
PREMIUM COMPONENTS INSIDE - Equipped with elite Nichicon, ELNA, WIMA capacitors, and Sumida inductors for ultra-low THD (0.006%) and pristine sound quality.
PURE POWER ZERO COMPROMISE - Delivers a robust 240W output to drive your high-performance speakers with crystal-clear precision.
FLEXIBLE CONNECTIVITY CUSTOMIZATION - Supports balanced XLR/TRS and RCA inputs with gain toggle, plus easy op-amp swaps to tailor your sound signature.

The Fosi Audio V3 Mono Power Amplifier is a compact, high-performance Class-D monoblock delivering 240W at 4Ω, designed for audiophiles and home theater enthusiasts. Featuring cutting-edge PFFB technology and premium components, it offers ultra-low distortion and exceptional sound clarity. Its advanced cooling system ensures reliable operation, while versatile input options and customizable op-amps provide tailored audio experiences.

Specifications

Manufacturer	Fosi Audio
Part number	un pezzo
Item Weight	750 g
Product Dimensions	14.2 x 10.67 x 4.09 cm; 750 g
Item model number	V3 Mono
Colour	Black
Material	[metal]
Voltage	48 Volts
Item Package Quantity	1
Plug profile	Surface Mount
Specification met	CE
Included components	48V Power supply
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

No sound change after switching the gain switch?

Would the noise still occur if no audio input cables are connected?

Doesn't work in standby mode?

V3 MONO don't have volume control or knobs?

What's the V3 MONO?

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