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.)

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.

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.

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.

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

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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

Product ID: 641505874

Details

Item dimensions L x W x H
5.71 x 4.24 x
Manufacturer
Fosi Audio
Maximum Supply Voltage
48
Minimum Supply Voltage
48
Voltage
230 volts

⚡240W peak power output

🔗Supports RCA & XLR balanced inputs

🧊Advanced full-body heat dissipation

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Description

🎶 Elevate your sound game with power, precision, and style — don’t just listen, experience it!

COOL UNDER PRESSURE - Innovative full-body heat dissipation keeps your amp running stable during marathon listening sessions.
POWERHOUSE PRECISION - Unleash 240W of crystal-clear Class D amplification for your ultimate HiFi setup.
FLEXIBLE CONNECTIVITY - Seamlessly switch between RCA and balanced XLR inputs to match your professional audio gear.
CUSTOM SOUND SIGNATURE - Swap out op-amps like Sparkos or Burson to tailor your audio experience to perfection.
AUDIOPHILE GRADE CRAFTSMANSHIP - Premium TPA3255 chip with Japanese and German components ensures ultra-low distortion and pristine sound fidelity.

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, premium components including the TPA3255 chip, and advanced heat dissipation, it offers exceptional sound clarity with ultra-low distortion. Its versatile RCA and XLR inputs plus customizable op-amps make it a flexible, future-proof addition to any high-fidelity audio system.

Specifications

ASIN	B0D31M3DXY
Best Sellers Rank	#20,888 in Electronics ( See Top 100 in Electronics ) #97 in Audio Component Amplifiers
Brand Name	Fosi Audio
Customer Reviews	4.1 out of 5 stars 335 Reviews
Included Components	Fosi Audio V3 MONO Power Amplifier; 48V/5A Power Supply Unit; User Manual
Item Dimensions	5.71 x 4.24 x 1.57 inches
Item Weight	750 g
Item dimensions L x W x H	5.71 x 4.24 x 1.57 inches
Manufacturer	Fosi Audio
Material Type	Metal
Maximum Output Power	240 watts
Maximum Supply Voltage	48 volts_of_direct_current
Minimum Supply Voltage	48 volts_of_direct_current
Model	V3 Mono
Mounting Type	Surface Mount
Number of Channels	1
Number of Items	1
Part Number	un pezzo
Specification Met	CE
Supply Current	1.04 A
Voltage	230 volts
Warranty Description	24-month manufacturer

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S$289

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

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