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Product description
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Two V3 Mono Power Amplifier Merchant Video
Continuation of Co-Creation
Engineered for Audiophiles – Optimal Choice for Home Audio Systems
Input: RCA, XLR, ¼” TRS; Output: Passive Speaker (supports banana plug or bare wire connection)、Passive subwoofer.SINAD: XLR–101dB; RCA–93dB; SNR: ≥123dBRated Power Output: 48V/5A 240W@4Ω; Maximum Power Output: 48V/10A 300W@4Ω. Support Impedance: 2-8Ω.
— Q: Why should I choose a 48V 10A power supply for the V3 MONO instead of a 48V 5A one?
— A: Since the V3 MONO can drive 2Ω speakers or subwoofers, the 48V 10A power supply provides the higher current needed to ensure adequate power.
1 Desktop 2.0
2 Home Theater 5.0
3 Home Theater 2.1
4 Bookshelf 2.0
Post-Filter Feedback Technology Integrated
Significantly reduces distortion, enhances linearity and frequency response to get superior sound.
Compact Yet Powerful
Crafts an immersive sound experience, satisfying your craving for superior musical quality.
Accurate Imaging with Zero Crosstalk
Enhances stereo depth and soundstage accuracy for a purer audio experience.
Easily Replaceable DIP8 Dual Discrete Op-amps
Meeting your pursuit of a personalized audio experience
1 PFFB Technology
2 Rated Power 240W
3 Pure Sound
4 Swappable Op-Amp Design
5 Power Rating
Provides You with Flexible Connectivity Options
Effortlessly switched by a toggle switch, easily adapted for both home and professional scenarios.
Advanced Cooling Design
Long-term efficient operation of the amp, prevents overheating.
With Minimalist Design
Effortlessly integrates into various settings like home theater, study room, desktop, and studios.
Automatic Signal Sensing
Enters standby after 10 minutes of no signal input, effectively reducing power consumption.
1 XLR Balanced & RCA Inputs
2 Premium Components
3 Heat Dissipation Design
4 Compact and Exquisite
5 Auto Power
Premium Internal Components 
NICHICON Caps, Japanese
Ensure superior sound clarity, longevity, and stable electrical performance, enhancing the fidelity of audio reproduction.
WIMA Caps, German
Provide exceptional sound quality and signal stability, greatly enhancing the audio experience.
ELNA Caps, Japan
Ensure enhanced audio clarity and stability, contributing to a richer sound experience.
Sumida Inductor, Japanese
Offers superior signal purity and noise reduction, elevating the amplifier’s sound performance.
Friendly Solutions Guide
1. Function Troubleshooting
– Ensure all wiring is correct (connect the positive speaker wire to the amplifier’s positive terminal, the negative to the negative terminal, and make sure the speaker wires do not touch each other, as this could cause a short circuit and potentially damage the amplifier).
2. Heat Dissipation
– It is recommended to use TWO V3 MONO within the rated power range to avoid overheating. (Rated Power 240W, Maximum Power 300W). — Place TWO V3 MONO in a cool and ventilated working environment. — Use a cooling fan with TWO V3 MONO to achieve effective heat dissipation. It can attach an aluminum heat sink to the top with a thermo-transferring adhesive.
3. Audio Sound Quality:
– Audio Quality: Different audio source qualities affect the sound quality. It is recommended to use high-quality, lossless audio files, such as FLAC, WAV and other formats, to obtain a better sound quality experience.
– TWO V3 MONO supports impedance of 2-8Ω. Speaker impedance that is too low or too high will cause unstable amplifier output and affect the sound quality performance. — Please replace with a high-quality RCA cable with good shielding to prevent noise.
4. Compatibility:
– NOT Compatible: Active Subwoofer, Bass Shaker, Bass Audio,Bluetooth, USB/COA/OPT decoding amplifier, and does not support headphone amplifiers.
– One V3 MONO is a mono power amplifier, TWO V3 MONO amplifiers can connect two speakers to achieve 2 channel amplifier effect. Please watch our video “TWO V3 MONO How to Build a 2.1 System” in listing page.
Crafted for HiFi Audiophiles: The amplifier stereo receivers allows you to drive a single passive speaker with one amp, delivering up to 240W @4Ω of rated power. It offers the flexibility to build your home audio 2/3/4/5-channel system effortlessly. The V3 Mono Mini Monoblock Amplifier can serve as a power amplifier for multi-channel AVRs, complementing the output power to easily drive high-power speakers in home theater systems.
Technological Breakthrough: Fosi Audio has achieved a technological breakthrough with the V3 Mono by incorporating PFFB (Post-Filter Feedback) technology. This innovation effectively addresses the load dependency issues common in Class-D amplifiers, improving distortion and enhancing frequency response, resulting in significantly enhanced sound quality and performance.
High-End Components: The home stereo system components features the TPA3255 Class-D amp chip, paired with premium components such as Japanese Nichicon filter capacitors, ELNA capacitors, German WIMA capacitors, and Japanese Sumida inductors. The upgraded four-layer PCB ensures high power output, achieving a THD as low as 0.006%, a SINAD of 101dB, and an SNR of 123dB, ensuring audio fidelity and quality.
Efficient Heat Dissipation: Utilizing Fosi Audio’s stereo amplifier full-body heat dissipation design, the TPA3255 amplifier chip is placed at the bottom and integrated with the chassis, allowing heat to dissipate effectively through the casing. Dual side ventilation holes enhance internal airflow, ensuring stable, high-power output over extended periods.
Versatile and Customizable Design: The amplificador de audio supports both XLR/¼” TRS balanced and RCA single-ended (with gain selection) inputs, with an easy toggle switch for selection. Features an auto power/signal sensing mode to enhance energy efficiency. Customize your sound signature by replacing the stock NE5532 op-amps, supporting DIP8 dual discrete op-amps, compatible with Sparkos SS3602, MUSES02, OPA2604, Burson V5i, V6, V7, and more.
