Fosi Audio V3 Mono Power Amplifier for Home Audio Speakers, Mini Monoblock Class D Amp
- Regular price
- $279.99 USD
- Sale price
- $279.99 USD
- Regular price
-
$279.99 USD
Tax included.
Shipping calculated at checkout.
- PFFB Load Independence
- 240W Rated Power Output
- Op-Amp Rolling: SS3602, MUSES02, OPA2134PA
- Supports XLR Balanced And RCA Inputs
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
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
Opamps - I am using a pair of V3 mono amplifiers and am only using the RCA audio input, If I wanted to experiment with an alternative Opamps, am I able to only replace a single Opamp in each V3 mono, or do I need to change multiple Opamps per V3 mono amplifier?
Is the answer different if I was using the XLR balanced input?
Dear V3 mono owners,We are kindly to announce that the output polarity of V3 MONO has been revised since August 2.
For V3 MONO units purchased on or after August 2nd, 2024: The output polarity of V3 MONO has been revised. You can connect your speaker terminals normally without reversing the polarity.
For V3 MONO units purchased before August 2nd, 2024: Using two V3 Monos together won't cause any phase issues. However, if you integrate one V3 Mono with other equipment, please note that the phase might be inverted. To achieve optimal sound quality, please connect the speaker terminals reversely when connecting to your V3 MONO amplifier.
If you purchase the V3 Mono from the Fosi Audio website after August 2nd, 2024, it will be the updated version. For purchases from platforms like Amazon, eBay, or AliExpress, please contact our customer service to confirm which version you are receiving.We apologize for any inconvenience caused by this and appreciate your patience as we worked diligently to rectify the problem.
If you have any questions or require further assistance, please contact our customer support team: support@fosiaudio.com.Kind regardsFosi Audio Team
H
I bought 2 V3 mono block amplifiers in Sep 2024. After listening for few times , one of the amp did not have any sound.
I sent a ticket to support and was promised to get a replacement board. However, I got an old/refurbished replacement board which was manufactured in 2023.
I am very disappointed receiving an old board but support said the board was fully tested.
This is not acceptable to replace the faulty board with an old one. After all, the product should have 24 months warranty and clearly the board is a faulty one.
I requested to provide a new board and am still waiting for reply from support.
It is a very disappointing and bad experience !
J
Its powerful, clear and compliments well with my Fosi X2.
D
Listen, first of all i have an class AB Emotiva Basx A300 amplifier that is 200 W / Channel .
So then the Fosi arrived, i was sceptical of course . My soruce is PC with usb cable to Topping D50 III - XLR(TRS) - 2 x Fosi V3 Mono - Canton Karat Floorstanders 3 way Speakers .
I want to say i lost nothing in quality , more i hear new sound now , the treble is just right, and the bass has that uomph to it, is hard and thick . I cant believe that they are better than emotiva amp - really powerful . The only thing that i notice is the volume is a little little under the emotiva , but the quality is over and over better than Emotiva .
They get a little hot to the touch - i keep them separate side by side , but i am in the process of making some stand for them with some usb fans .
So class AB fans , just give them a try , i think you will not regret it .
Fosi , best wishes and keep up the good work ! You are awesome , quality products and accessible prices !
Z
I bought 2 V3s in pre-sale. I paired them with a ZD3 DAC via XLR Todn cables and the sound is excellent. I also own a High End Class D Amplifier Buchardt I150 2x 300W which costs 2500 Euros in direct sales. If it were sold through a dealer it would be significantly more expensive, probably between 4000 and 5000 Euros. I can say that the Fosi V3 Mono works almost the same as the Buchardt which is a 15 times more expensive amplifier. The difference is insignificant.
If you buy expensive branded amplifiers just for the tradition and name, you are wasting a lot of money.
B
They sound great in my system. They get hot as I have stacked them on top of one another. I now have 140mm fan on its edge running and they stay cold. Great sound love them.
