Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio
【Pre - Sale】Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp - Fosi Audio

Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp

Normaler Preis
$109.99 USD
Verkaufspreis
$109.99 USD
Normaler Preis
$109.99 USD
Steuern inklusive. Der Versand wird an der Kasse berechnet.
Learn More
Model:
Continuation of Co-Creation

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; 32V/5A 100W@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 theater, 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.
  • 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.[Note: It is estimated that the pre-sale order will be shipped between August 8th and 18th.]

  • 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.

  • V3 mono stereo audio component mini power monoblock amplifier 2 channel amplifier single channel 2/2.1/3/4/5 channel class d amp tpa3255 for home theater desktop outdoor bookshelf Tower floorstanding passive speakers ZA3.
    Tips: If you're in need of a Stereo amplifier, you can check out the V3.
  • 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 
  • V3 MONO Power Amplifier

Q: The V3 Mono has three op-amps. What does each one do? And if l want to get a better sound, which one should l change?
A: The three op-amps in the V3 Mono serve distinct functions: Position 1 converts the RCA unbalanced signal to a balanced signal, while positions 2 and 3 adjust the tone. lf you're considering replacing an op-amp, it's recommended to start with the one in position 2. Replacing both the op-amps in positions 2 and 3 will have a more noticeable effect. Users can try swapping different op-amps to experience changes in sound quality.


Q: For the V3 Mono do I need any specific type of op-amp?
A: It supports DIP8 dual op-amps. We highly recommend the op-amp available through the following link: https://fosiaudio.com/products/op-amp-chip-muses02-opa2604ap-opa2134pa?_pos=20&_sid=71ca24042&_ss=r
Using different op-amps can result in various sound signatures. Please refer to the video via the link: https://youtu.be/jtK9oYZ_XoI


Q: The V3 MONO's power LED does not work but it outputs sound.
A: Check if the LED is out of position after swapping the op-amp. Open the unit and align the LED correctly.

Customer Reviews

Based on 115 reviews
74%
(85)
14%
(16)
6%
(7)
1%
(1)
5%
(6)
S
S R
Powerful

Powerful compared to its size.

N
Naman
Best design

Superb design, so compact love it.

B
Blaine G
Incredible performance value

The V3 monoblocks are as good as all the reviewers claim. They pack a mighty punch for their size. I highly recommend going for the biggest power supply (48V, 10A), you will not be disappointed. I'm looking forward to testing them on larger speakers. Very well done Fosi Audio!

W
William
Best bang for the buck amps I have found

Was looking for a desktop setup to replace my Schiit Vidar monoblocks. These sound every bit as good but are much smaller and a fraction of the price. The TPA3255 is an amazing chip and Fosi have built an incredible amp around it, at a price that is unbelievably good. I'm using them to power my LS50 Metas and they have plenty of power to push them to uncomfortably loud levels. I upgraded the opamps to Sparkos SS3602, which was definitely an improvement, but it nearly doubles the cost of the system, so I'm not sure I would recommend it. The amps do get hot because they use the chassis as a heat sink. It was a little concerning at first but I've been running them for almost a year with no issues.

P
Phil
Little footprint, Big kick!

I love these little guys. They’ve easily powered every speaker I’ve thrown at them including B&Ws.

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