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Fosi Audio V3 Stereo Amplifier 300W x 2 with 48V Power Supply

Fosi AudioPart # 235-266
Model: V3

The Fosi Audio V3 is a high-performance stereo amplifier that delivers exceptional sound quality in a compact, stylish design. Ideal for home audio systems, it offers advanced thoughtful engineering, multiple power supply options, and built-in heat dissipation features for reliable and safe operation. Experience rich, immersive audio with the Fosi Audio V3, perfect for music, movies, and gaming.

Key Features

  • Class D amplifier utilizing the TPA3255 chip for efficient, high-quality audio
  • Audiophile-grade components, including Japanese NCC, ELNA, German WIMA capacitors, and Japanese Sumida inductors
  • Swappable NE5532 op-amps for customizable sound tuning
  • Innovative heat dissipation design with top and bottom vents and full-body heatsink
  • RCA input and 3.5mm pre-out for versatile connectivity
  • 48V 5A power supply included
Your Price: $98.99
MSRP: $109.99
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Overview

Fosi Audio V3 Stereo Amplifier 300W x 2 with 48V Power Supply

Fosi Audio V3 Mini Stereo Power Amplifier

Designed with Audiophiles in Mind

Integrated high-quality components and an innovative heat dissipation design ensure stable, high-performance output that meets the expectations of discerning audiophiles.

Born for HiFi Enthusiasts

Embracing a minimalist design approach, the focus is placed entirely on elevating sound quality and performance, making it Fosi Audio’s best-sounding power amplifier to date.

TI TPA3255 Integrated

Delivers superior audio quality and ultra-low distortion across the full frequency range while maintaining the high efficiency of Class-D amplification.

Swappable Op-Amps

Compatible with 8-pin dual op-amps, allowing you to swap and customize the sound signature to match your personal listening preference.

Audiophile-Grade Capacitors

Equipped with high-quality Japanese NCC, ELNA, and German WIMA capacitors to ensure exceptional audio performance and reliability.

Japanese SUMIDA Inductors

Features professional-grade audio inductors with lower impedance, allowing support for higher current and improved overall performance.

Groundbreaking Heat Dissipation

Top and bottom vents combined with a full-body heatsink design improve airflow and cooling efficiency for stable high-power operation.

Compact Yet Powerful
The V3 mini power amplifier combines minimalist design with high performance. Delivering up to 600W, it easily drives 2–8Ω speakers with impressive clarity, making it ideal for bookshelves, desktop setups, or home theater systems.

Audiophile-Grade Components
Built around the TPA3255 Class-D amp chip, the V3 uses premium components including Japanese NCC, ELNA, and German WIMA capacitors, plus Japanese Sumida inductors. With a SINAD of up to 88dB, SNR of 110dB, and a noise floor as low as 140μV, it ensures clean, low-distortion audio reproduction.

Innovative Cooling
The V3 features a unique thermal design with top and bottom vents and a full-body heatsink to maximize airflow. This advanced cooling prevents component stress and maintains consistent performance even under demanding use.

Scalable and Fun
Customize your sound by rolling op-amps. The V3 supports various 8-pin dual op-amps like Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4559, LM4562, LME49720HA, and more, giving you full control over your tonal preferences.

Specifications

  • Chip Set: TI TPA3255
  • Output Power: 300Wx2 @4Ω
  • Terminating Impedance: 2-8Ω
  • Input Mode: RCA
  • Output Mode: Speaker Output + Pre-out
  • Frequency Range: 20Hz-20kHz(±0.1dB)
  • SINAD: 88dB

  • THD: 0.003%
  • SNR: ≥110dB
  • Control Knob: Built-in Logarithmic Taper A pot
  • Device Dimension: 6.5x4.1x1.4 inches
  • DC Input Range: 24-48V
  • Power Supply: 32V/5A, 48V/5A

Product Details

BrandFosi Audio
ModelV3
Part Number235-266
Unit of MeasureEach
Weight2.53

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