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Product Description

The mono power amplifiers that have raised the eyebrows of the audio world.........

Fosi Audio V3 Mono Mini Power Amplifier

A debut Class D audio amplifier with PFFB technology to significantly improve sound purity and system efficiency, offering a flexible solution to your home audio system.

Engineered for Audiophiles - Optimal Choice for Home Audio Systems

In 2023, following the launch of the V3 stereo amplifier, we received numerous valuable suggestions and feedback from our global audio lovers. We listen intently, record diligently, and develop with dedication, ultimately striving to transform your suggestions and ideas into reality—the V3 mono.

Input: RCA, XLR, ¼" TRS; Output: Passive Speaker (supports banana plug or bare wire connection)

SINAD: XLR--101dB; RCA--93dB; SNR: ≥123dB

Rated Power Output: 48V/5A 240W @ 4Ω

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

Provides You with Flexible Connectivity Options

Effortlessly switched by a toggle switch, easily adapted for both home and professional scenarios.

Advanced Cooling Design

Guarantees long-term efficient operation of the amp, prevents overheating.

With Minimalist Design

Effortlessly integrates into various settings like home theatre, study room, desktop, and studios.

Automatic Signal Sensing

Enters standby after 10 minutes of no signal input, effectively reducing power consumption.

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.

Sumida Inductor, Japanese

Offers superior signal purity and noise reduction, elevating the amplifier's sound performance.

ELNA Caps, Japan

Ensure enhanced audio clarity and stability, contributing to a richer sound experience.

PFFB Load Independence (Post-Filter Feedback Technology)
240W Rated Power Output
Op-Amp Rolling: SS3602, MUSES02, OPA2134PA
Supports XLR Balanced And RCA Inputs
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 theatre 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.
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.

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
Frequency Response : 10Hz-30kHz（±0.06dB）
Input Voltage Range : DC 32-48V
Standard PSU : 48V/5A
Product Dimensions and Weight ‏ : ‎ 14.2 x 10.67 x 4.09 cm; 750 g

Specifications

Product Type

Power Amplifier

MPN

FOSI-V3

Brand

Fosi Audio

Condition

New

Product Code

FOSI-V3

Weight

2kg

Description

The mono power amplifiers that have raised the eyebrows of the audio world.........

Fosi Audio V3 Mono Mini Power Amplifier

A debut Class D audio amplifier with PFFB technology to significantly improve sound purity and system efficiency, offering a flexible solution to your home audio system.

Engineered for Audiophiles - Optimal Choice for Home Audio Systems

In 2023, following the launch of the V3 stereo amplifier, we received numerous valuable suggestions and feedback from our global audio lovers. We listen intently, record diligently, and develop with dedication, ultimately striving to transform your suggestions and ideas into reality—the V3 mono.

Input: RCA, XLR, ¼" TRS; Output: Passive Speaker (supports banana plug or bare wire connection)

SINAD: XLR--101dB; RCA--93dB; SNR: ≥123dB

Rated Power Output: 48V/5A 240W @ 4Ω

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

Provides You with Flexible Connectivity Options

Effortlessly switched by a toggle switch, easily adapted for both home and professional scenarios.

Advanced Cooling Design

Guarantees long-term efficient operation of the amp, prevents overheating.

With Minimalist Design

Effortlessly integrates into various settings like home theatre, study room, desktop, and studios.

Automatic Signal Sensing

Enters standby after 10 minutes of no signal input, effectively reducing power consumption.

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.

Sumida Inductor, Japanese

Offers superior signal purity and noise reduction, elevating the amplifier's sound performance.

ELNA Caps, Japan

Ensure enhanced audio clarity and stability, contributing to a richer sound experience.

PFFB Load Independence (Post-Filter Feedback Technology)
240W Rated Power Output
Op-Amp Rolling: SS3602, MUSES02, OPA2134PA
Supports XLR Balanced And RCA Inputs
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 theatre 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.
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.

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
Frequency Response : 10Hz-30kHz（±0.06dB）
Input Voltage Range : DC 32-48V
Standard PSU : 48V/5A
Product Dimensions and Weight ‏ : ‎ 14.2 x 10.67 x 4.09 cm; 750 g

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About the Brand

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About the brand

WHO IS FOSI AUDIO?

Fosi Audio is a spunky brand offering clients most Hi-Fi audio products on the market. Our objective is to provide Hi-Fi products, DIY kits and DIY guidance for audiophiles. With us, it’s not a one-stop transaction, we maintain a constant relationship with our clients, providing you the tools and support needed throughout your audio journey.

Our products include the Hi-Fi power amplifier, pre-amplifier, headphone amplifier, DAC, music player, Bluetooth receiver, DIY board, DIY chassis, and some DIY kits.

OUR COMPANY

Fosi Audio is an audio brand founded by Shenzhen Foresight Technology Co., Ltd (unified social credit number: 91440300MA5DT7DQ0G) in 2017 in Shenzhen, China. Our company is a national high-tech enterprise dedicated to the research, design, production, and sales of audio products. Our team is made up of a group of audiophiles, we produce most home audio DIY products. In China, our products are very popular in the community of DIY audio, and we have a large group of fans.

BRAND PHILOSOPHY: Redefining HiFi with Unmatched Value

"Redefining" highlights Fosi Audio's spirit of innovation and revolution in HiFi sector. This indicates that we aim not only meet existing market needs but are also actively shaping and improving this field.

"Unmatched Value" conveys the message that "Fosi Audio insists on co-creation with users, and the deep involvement of users makes the product's unmatched." The term 'Value' can be interpreted in the following ways:

Sound Quality and Performance: 'Value' emphasizes the commitment to excellent sound quality and performance. Even at morecompetitive price points, we strive to provide a sound experience comparable to high-end HiFi products.

Innovative Technology: 'Value' includes the effort to continually enhance the HiFiexperience through innovative technology. This involves the latest sound technology, improvements in user interfaces, more eco-friendly and durable designs, and etc.

User Experience: 'Value' also represents a comprehensive focus on user experience, from usability and design to customer service and support. Fosi Audio is committed to providing high-quality experiences at every touchpoint.

Premium sound doesn't demand a premium price: 'Value' is achieved by optimizing production links and reducing costs, allowing users to access high-quality HiFiproducts at competitive

Promise and Trust: "Value" also represents the reputation and commitment of Fosi Audio as a brand. Choosing FosiAudio is not only about the product but also trusting that we will continue to provide value and meet needs.

PRODUCT WARRANTY

All products manufacturer-Direct, free lifetime technical support, and 24-month manufacturer's warranty.

Contact us

Customer service email: support@fosiaudio.com.
Business cooperation: sophie@fosiaudio.com
Facebook page: Fosi Audio.

Whatsapp: +86 17722625601 Fosi Audio

Youtube: https://www.youtube.com/channel/UCs60Z60eFYAsJVvgYrE06RA

Website

www.fosiaudio.com

Delivery Information

Delivery is free for all orders over £250.

'In Stock' items ordered before 1pm will be dispatched the same day.

We use DPD Local 'Next Day Service' for most UK deliveries. Orders sent via 'DPD Local - Next Day Service' will be fully tracked with a 1-hour delivery timeslot on the day of delivery. Standard delivery is Monday to Friday.

Saturday delivery can be selected at checkout for £19.95.

Small items and LP's may be sent using Royal Mail.

Large/heavy items may be sent using TNT Express.

For all other countries please visit the 'Delivery Information' link in the footer.

Occasionally, due to stock demand, we can sell out. If this occurs when you make a purchase, we will inform you quickly. Most out of stock items are available for dispatch within 3 working days. If your purchase is urgent, please contact us to check availability.

Customer Reviews

Fosi Audio V3 Mono Mini Power Amplifier (Single)

Name: Fosi Audio V3 Mono Mini Power Amplifier (Single)
Brand: Fosi Audio
SKU: FOSI-V3
Price: 149.00 GBP
Availability: InStock

Item in Stock

Product Code FOSI-V3

Price Promise: If you find an identical item cheaper from one of our online competitors, tell us and not only will we match the price, we'll beat it by 10% of the difference! Terms and conditions apply, see more information about our price promise.

Single or Pair ?