Fosi Audio V3 Stereo Amplifier Home Audio 300 Watts x2 Power TPA3255 Class D Mini Speaker Amp 2 Channel Audio Component for Passive Bookshelf Tower Speakers Desktop Home Theater with 48V Power Supply
Condition: New
Checking for product changes
Buy Now, Pay Later
As low as
$18.33
/ mo
Learn more
- – 6-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Friday, Jul 4
Recently Viewed
Model: V3_48V/5A
Features
- Compact Yet Powerful: The V3 mini power amplifier combines a minimalist design with exceptional performance. With a power output of up to 600W, it can effortlessly drive 2-8 speakers, delivering impressive sound quality. Its compact size makes it suitable for various applications, from bookshelves and desktop setups to home theaters
- Audiophile-Grade Components: It features the TPA3255 high-end digital class D amp chip and utilizes premium Japanese NCC, ELNA, and German WIMA capacitors, and Japanese Sumida inductors for exceptional audio quality. With a SINAD rating of up to 88dB, an SNR of up to 110dB, and a low noise floor of only 140uV, it delivers exceptional clarity and low distortion
- Scalable and Fun: Tailor your sound experience by swapping the stock NE5532 op-amps. V3 is compatible with a variety of 8-pin dual op-amps like Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4559, LM4562, LME49720HA, etc
- Note: The "Pre-out" level is NOT controlled by the volume control as the V3 is not an integrated amplifier, so the sound is NOT adjustable when you are connected to the "Pre-out", and it doesn't come with the orange knob
Language : English
Package Dimensions : 11.65 x 9.53 x 2.83 inches; 3.24 Pounds
Item model number : V3_48V/5A
Date First Available : August 23, 2023
Manufacturer : Fosi Audio
Country of Origin : China
Best Sellers Rank: #17,460 in Electronics (See Top 100 in Electronics) #58 in Audio Component Amplifiers
#58 in Audio Component Amplifiers:
Customer Reviews: 4.5 4.5 out of 5 stars 1,094 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jul 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Model: V3
My main audio system is a tri-amplified Linkwitz Audio Artistry system. When I started putting together my upstairs system, I wanted to tri-amp but not break the bank. So I started with various Fosi amplifiers. I bought one of the V3 amps for main speakers (Triangle Acoustics from France). After listening for several months, I opened the amp and upgraded to Burr-Brown op-amps. After a few more months, a friend brought over a Carver tube amplifier. We rolled EL34 and KT88 power tubes and had a great time, but the little Fosi V3 seemed to keep up. I ordered two more. The system sounds fantastic, has plenty of power, and competes with far more expensive setups. I bought one for my son. You know it's a good product when you keep buying more of them. They sound great, have plenty of power, and easy to use. They're upgradable and punch way above their weight. Technological progress is amazing. A decade ago, I'd never think solid-state would sound this good, but here we are.
...
show more
Reviewed in the United States on June 3, 2025 by S. Moore
Model: V3
It powers my speakers just fine: 75 watts bookshelf. It picks up noise--which means it's accurate. I can turn turn it up full power with no-signal and get no noise! It WILL pick up noise from your equipment (again THAT'S A GOOD THING!!!) I will say the advertising is deceptive: "300 watts per channel" is the absolute maximum this thing will do at 4 ohms IF YOU BUY THE EXPENSIVE POWER ADAPTER. Either way typical "good" speakers are 6 or 8 ohms meaning you're really getting closer to 75 watts per channel--which is more than enough for bookshelf speakers.
...
show more
Reviewed in the United States on June 16, 2025 by Jared
Model: V3_48V/5A
300 wats per channel? (RMS)? not in this universe. Some dubious HiFi manufactures, back in the late '60s, used a rating system of "IPP" (Instantaneous peak power) Which was the momentary highest possible power an amp could deliver before producing more distortion than music, or perhaps exploding (hyperbole). This seems to be the case with most of these Chinese mini amps. That being said, if you can get by with a realistically rated 75 WPC X2 amp this might be a good choice, your cup of tea. Actually, it sounds pretty good especially after installing a pair of Sparkos op amps I had laying around. I'm using it to drive a pair of Yamaha outdoor speakers on our screened porch, replacing a Dayton DAT-120. This little Fosi V3 is defiantly a step up in sound quality. The size is right, the price is right, light on bass, and it works pretty well for a tiny class "D" amp. Did I mention the price?
...
show more
Reviewed in the United States on March 17, 2025 by Antos
Model: V3_48V/5A
Lots of clean power from tiny device (I bought with the 48V PSU). The only thing I can reasonably say I miss is a power button, so volume could be left as-is when turned off. (On-off is achieved with the volume knob.) But they absolutely know what they're doing, and perhaps adding that button would have increased size.
...
show more
Reviewed in the United States on June 8, 2025 by Ecaroh
Model: V3_48V/5A
Works great as a pre-amp with my home theater set up. Was unsure because it cost so little compared to others but sounds great. Super easy setup and operation.
Reviewed in the United States on June 4, 2025 by Aeon
Model: V3_48V/5A
The media could not be loaded. Ordered the Fosi V3 to replace a Fosi 20a I had purchased some time ago. The main differences are, the V3 is a more simplistic setup, promises more power per channel, and uses high quality parts internally. It can come with either a 32 volt or 48 volt power supply. Opt for the 48 volt power supply, you will not regret it. The larger more powerful power supply will get you higher volumes with better quality output On the back side of this unit are connects for a pair of speakers and an analogue input. The older Fosi 20a just did not have as much power particularly with only the supplied 24 volt power supply and fell short driving my Polk Atrium 6 speakers at loud volume. Now, I am using this as a garage system. Hence, the reason I chose to go on the cheap with this system. But....the Fosi V3 got decent audio reviews so what the heck. The garage system is a music system to accompany working on projects or the cars vs. just sitting and listening to music like I do with my home systems that cost much much more. So after connecting up an older generation Echo device to stream music, I used 14 gauge audio cable to connect the speakers to the amp. Very easy to do. The result is as you see it in the attached video. Loud enough for me and the overall sound quality is very good. So, this unit has few connectivity options but what it does, it does well. What I really like about this amp is its small size allowing me to store it in my garage wall cabinet. I would imagine this amp could be part of a home system in a small to mid size room Just be sure to match it up with a pair of good speakers. Speakers with a high efficiency rating will serve you best that is 90db or better. Recommended.
...
show more
Reviewed in the United States on February 1, 2025 by JH
Model: V3
So I want to like this amp but just can't love it. I bought it for my wife's hobby room to use with her Sony turntable. The turntable is set to line level and I've verified the line voltage is hitting over 1 V regularly with my scope. The Fosi feeds a pair of ML bookshelves at 5 Ohm, 92dB sensitivity that I know will get plenty loud at 40-50 watts as I have 3 pairs in different places around my house. But even wide open the FOSI just won't get to a satisfactory volume level. I have the 32V power supply so I know I'm not going to get max rated power at 4 ohms but based on my math I should still be getting enough power to bring the ML's to a very reasonable volume in the 12x12 room they're in. I've had the unit too long to return it and it does work but it's a definite buyer beware for me.
...
show more
Reviewed in the United States on May 6, 2025 by Mike D S
Model: V3
I really like how this little thing sounds. I've heard a lot about class D amplifiers, but I had no experience listening to them. When I listened to it for the first time after unpacking it, I was shocked, I didn't believe that something so small could play so well. But of course there are certain nuances, but they are not significant. Overall, I'm very satisfied and recommend it to those who are looking for inexpensive but relatively good sound. Delivery was fast, it came in good condition.
...
show more
Reviewed in the United States on April 13, 2025 by Andrew