[🎶SG] FOSI AUDIO V3 MONO Power Amplifier For Home Audio Speakers, Mini Monoblock Class D Amp

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FOSI AUDIO V3 MONO 
Power Amplifier For Home Audio Speakers, Mini Monoblock Class D Amp

> PFFB Load Independence
> 240W Rated Power Output
> Swappable Op-Amp Design
> Supports XLR Balanced And RCA Inputs
> All-Aluminum Alloy Chassis
> Full-Body Cooling Design

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Descriptions:

> PFFB Post-Filter Feedback Technology 
> Significantly reduces distortion, enhances linearity and frequency response, and improves sound purity and system efficiency. 

> Reproducing the Purest Sound 
> Recreating Every Detail 
> Effectively reduces the output impedance, thereby increasing the damping factor for tighter and more precise speaker response. 

> Load Dependence Defeating 
> Overcoming the Pain Point of Class-D Amps 
> Reduces output filter impact, boosts frequency response for balanced, natural tones, ensuring true reproduction. 

> 240W Rated Power Output
> Crafts an enriching, immersive sound experience, satisfying your craving for superior musical quality with unmatched audio richness.

> Pure Sound, Accurate Imaging with Zero Crosstalk 
> Enhances stereo depth and soundstage accuracy through precise power and channel separation for a purer audio experience. 

> Compact and Exquisite With Minimalist Design
> Effortlessly integrates into various settings like home theater, study room, desktop and studios without occupying too much space. 

> All-Aluminum Alloy Chassis 
> Sturdy and Durable 
> Durably built from a single CNC-machined aluminum alloy piece, showcasing a robust and refined high-quality design. 

> Premium Internal Components 
> Carefully selected top-tier components are dedicated to crafting extraordinary sound quality, making every listening a pure delight. 

> Supports XLR Balanced and RCA Inputs 
> Easily Switchable with a Toggle 
> Provides you with flexible connectivity options that are easily adapted for both home and professional scenarios

> XLR Balanced Input
> Enhanced Interference Resistance
> Ensures stable audio transmission for a precise, clear listening experience, fulfilling the quest for supreme sound quality. 

> RCA Input
> with 25dB and 31dB Gain Selection 
> Enhances source adaptability and audio clarity, reducing distortion and overload risk, suitable for various audio setups.

> Swappable Op-Amp Design 
> Easily replaceable DIP8 dual discrete op-amps, meeting your pursuit of a personalized audio experience. 

> Four-Layer PCB Design 
> All for Superior Sound Quality 
> Boosts signal stability and audio purity, enhancing performance and interference resistance for superior sound output. 

> Auto Standby Mode 
> High Energy Efficiency 
> Automatically enters standby after 10 minutes of no signal input, extending device lifespan and reducing power consumption. 

> Advanced Cooling Design
> Guarantees long-term efficient operation of the amp, prevents overheating, and maintains consistent sound quality and device longevity. 

> Side Ventilation 
> More Effective Cooling 
> Boosts heat dissipation efficiency for superior performance and stable sound quality, ensuring enhanced air circulation. 

> Dust-Proof Filter Screens 
> Aesthetic and Practical 
> Effectively blocks dust without compromising cooling, ensuring long-term stability and enhancing product durability. 

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> Mini Monoblock Amplifier
> Crafted for HiFi audiophiles, the V3 Mono 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 can serve as a power amplifier for multi-channel AVRs, complementing the output power to easily drive high-power speakers in home theater systems.

> Innovative Cutting-Edge Technology
> Fosi Audio has achieved a technological breakthrough through independent research and development by applying PFFB (Post-Filter Feedback) technology to the V3 Mono for the first time. This effectively overcomes the common load dependency issues of Class-D amplifiers, improving distortion and enhancing frequency response, thereby significantly enhancing sound quality and performance.

> Audiophile-Grade Components
> The V3 Mono incorporates the high-end TPA3255 Class-D amp chip, paired with well-known components such as Japanese Nichicon filter capacitors, ELNA capacitors, German WIMA capacitors, and Japanese Sumida inductors, etc. Additionally, it features an upgraded four-layer PCB. This combination not only ensures high power output but also achieves a THD as low as 0.006%, a SINAD of 101dB, and an SNR of 123dB. As a result, the fidelity and quality of the audio are assured.

> Advanced Cooling
> Utilizing Fosi Audio's pioneering full-body heat dissipation design, the TPA3255 amplifier chip is placed at the bottom and tightly integrated with the chassis, allowing heat to be effectively dissipated through the casing. Coupled with dual side ventilation holes that enhance internal airflow, this ensures the V3 Mono can deliver stable, high-power output over extended periods.

> User-Friendly Design
> Supports both XLR/¼" TRS balanced and RCA single-ended(with gain selection) inputs, with an easy toggle switch for selection. Additionally, it features an auto power/signal sensing mode to enhance energy efficiency. You can also customize your preferred sound signature by replacing the stock NE5532 op-amps, supporting DIP8 dual discrete op-amps such as Sparkos SS3602, MUSES02, OPA2604, Burson V5i, V6, V7, and more.

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Specifications:

> Channel : 1.0
> Amplifier Chip : Texas Instruments TPA3255 
> Input : RCA, XLR, ¼" TRS
> Output : Speaker Output (supports banana plug or bare wire connection) 
> SINAD : XLR: 101dB ; RCA: 93dB 
> SNR : ≥123dB 
> Dynamic Range : ≥123dB 
> THD : ＜0.006% 
> Gain : XLR/¼” TRS: 20dB ; RCA: 25dB, 31dB;  
> Terminal Impedance : 2-8Ω 
> Rated Power Output : 48V/5A--240W@4Ω ; 32V/5A --100W@4Ω 
> Frequency Response : 10Hz-30kHz（±0.06dB）  
> Input Voltage Range : DC 32-48V  
> Standard PSU : 48V/5A 

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Changing Op-Amp

The op amp in position 1 converts the unbalanced signal from RCA into a balanced signal. The op amps in positions 2 and 3 are responsible for adjusting the tone. If you're looking to change only one op amp, it's recommended to replace the one in position 2. However, if you replace both op amps, the effect will be more noticeable. Positions 2 and 3 can be replaced with different chips. You can personally experiment with changing different op amps and their positions to experience the changes in sound.