Fosi Audio MC331 Tube Integrated Amplifier with DAC, 2 Channel Home Audio Stereo Power Amp for HiFi Bookshelf Speakers/3.5mm Headphones, Vintage VU Meter Preamp with Bluetooth and USB/Opt/Coax/RCA
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Fosi Audio MC331 Tube Integrated Amplifier with DAC, 2 Channel Home Audio Stereo Power Amp for HiFi Bookshelf Speakers/3.5mm Headphones, Vintage VU Meter Preamp with Bluetooth and USB/Opt/Coax/RCA

4.3/5
Product ID: 677084389
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Details

  • Item dimensions L x W x H
    5.94 x 5.31 x
  • Voltage
    110 Volts (AC)
  • Manufacturer
    Shenzhen Co.
  • Mounting Type
    Freestanding
  • Brand
    Fosi Audio
📡Bluetooth & Multi-Input
🔊105W x2 Power
🎛️Remote-Controlled

Description

🎶 Elevate Your Sound, Embrace the Vibe!

  • COMPACT POWERHOUSE - Maximize your sound with 105W x2 power output while saving valuable desktop space.
  • VINTAGE MEETS MODERN - Enjoy the warm aesthetics of vacuum tubes and a retro VU meter in a sleek design.
  • VERSATILE CONNECTIVITY - Compatible with Bluetooth, USB, optical, coaxial, and RCA inputs for ultimate flexibility.
  • SEAMLESS AUDIO SWITCHING - Easily switch between sources with a remote control for a hassle-free experience.
  • PERSONALIZED SOUND EXPERIENCE - Customize your audio with adjustable bass and treble settings from your chair.

The Fosi Audio MC331 is an all-in-one tube integrated amplifier that combines a DAC, preamplifier, and headphone amplifier, offering a powerful 105W x2 output. With versatile connectivity options and a stylish vintage design, it enhances both the aesthetics and audio quality of your home setup.

Have a Question? See What Others Asked

The volume is very low when connecting the turntable to the MC331. Do I need a turntable preamp?
Q: What is the purpose of the pre-out port on the MC331?
Can headphones and passive speakers play simultaneously?
What tube models are compatible for replacement?

Reviews

4.3

All from verified purchases

P**A

Reasonably priced, decent quality power amplifier!

A simple tube based power amplifier that has a Bluetooth receiver that can pair with up to 10 devices. It will only receive from one device at a time, so you need to turn off the Bluetooth device on are not trying to pair with when switching between Dec, but this is to be expected. I have used it with a Bluetooth enabled turntable, and a couple of iPhones. All worked as expected. I also tried a very inexpensive Bluetooth enabled pocket cassette player, and would not pair. So, your mileage may vary.Sound quality is decent, with pretty good bass. Ultimately this is determined largely by the speakers, so the better your speakers, the better the sound. It has a Bass and Treble control, which work, but obviously not as good as a multi channel equalizer.Build quality: Seems good. All the parts were provided and packed properly. I had no difficulty assembling the amplifier, which just involved plugging in the two tubes, screwing in the tube heat protectors, and connecting the cables.Power: The amplifier is rated at 105 watts per channel, into a 4 ohm load,, which is more than enough for any small to medium sized room. I noticed no distortion at any of the sounds levels I was using.The price: at $116 with a small running discount, this amplifier is easily worth the price.You get what you pay for I guess. Overall I am happy this little amplifier. Recommended!

J**W

Great value in quality Amp to power passive speakers in a shelf or desktop environment

I had heard good things about this manufacturer's amplifiers, and I needed something a little more than a one input amplifier. This integrated amplifier allows you to connect via Bluetooth, USB-C, RCA and optical, allowing me to use this to connect to an Arylic streamer and my PC. I was initially reluctant to purchase something that uses tube technology, since I'm not sure how long they will last. My previous solid state receiver lasted 20 years with no issues until last month when it started getting cross talk issues between FM and other inputs. With the Fosi MC 331 on sale I thought I'd take a chance.My concerns are unfounded so far, since the tubes are only for the pre-amp stage and are easy to insert and replace. I've even come across some suggested tubes that allegedly improve the sound, although the sound with the included tubes is terrific.I'm not crazy about the user interface, since the volume dial is used to adjust the volume, switch between the sources by single clicking, and a power switch, by long pressing.I have some unusual banana plugs that I was unable to use since they are not the usual type but are flexible and intended to be used in the clip type speaker posts but this amp only allows for standard rigid banana plugs and using bare wire to insert into holes under the twist-tight speaker posts. You'll be better off with thinner speaker wire if you don't have rigid banana plugs and need to attach using bare wire, as the 14 AWG speaker wire I use barely fits. Thinner wires are fine for shorter runs, so I wouldn't be worried if this were to power nearby bookshelf speakers, which I suspect will be the most frequent use case for this amp.The built-in Texas Instrument DAC allows this to be connected to my PC via USB-C cable and the improvement over the original Realtek sound from the HP PC and RCA cables was noticeable.Some caveats: the manufacturer provides tube protectors to keep you from touching the glass tubes as they are fragile and get quite hot so don't touch them with the power on. It takes the tubes 15 to 20 seconds to warm up, so make sure to turn the amp on before you sit down to enjoy your music.This amp is tiny and fits easily on the shelf with the shelf speakers, which are 10 1/2 inches tall. By comparison. the receiver this replaced took up all the available shelf space. Have to move some stuff around now with the extra space.This also has a headphone amp, but note that while using the headphone output, the speaker outputs are not available.A remote control is included, but you'll need two AAA batteries, as none are supplied.If I run into any issues with this I'll update the review, but so far very happy with this purchase.

E**D

Best $100 bucks in the audio world, amazing!

Brilliant little gem. Sounds fantastic, much less digital sounding than WiiM amp I returned prior to this. Masterpiece of design and form/function. Even the remote is brilliantly designed. I swapped the tubes for Mullard 8100s but I think the stock tubes surprisingly may sound better/warmer. Best $100 I’ve spent in a long time, and I own big $$ home stereo components for a different room too so have some serious gear for comparison. Can drive my 8ohm bookshelf speakers to reference levels at about 50% in a 12x24 room. Using this with a WiiM mini streamer and prefer the DAC in the mini (burr brown) as it’s a bit softer and more organic than the more modern more detailed DAC in the Fosi, and can use the aux out fur subwoofer. Brilliant and flexible package with a tiny footprint. Highly recommended!

D**M

Great quality.

Great quality and the sound comes out super, works perfectly. Better than i expected and look to be very high quality.

D**N

Warm sound with super versatility in a compact form

My MC331 is better than I had anticipated (with a couple caveats). The sound is clear, and the tubes impart with slight warmth you look for with a tube (hybrid) amplifier. 100W is plenty enough for my desktop needs, and I wouldn't hesitate using it with larger (efficient) speakers. The Bass/Treble adjustments are adequate but coarse. I paired this with application based EQ for great results. I love the retro VU meter and the front panel headphone jack (3.5mm). It supports a variety of inputs and the dial to select them is easy to use. I noticed a low level noise in RCA mode that persisted after 3 different sets of tubes, but an in-line attenuator solved the problem.I recommend the Fosi MC331 for folks who want a bit better (nostalgic) sound from a small footprint amplifier. Bluetooth makes it convenient to use with phones, tablets, etc as well. One note however, it is considerably smaller than the product photography makes it appear.

C**K

Great value

I love everything about this Fosi amp. I have it on my back screen porch to power a pair of Polk Audio speakers. The sound is superb. Very clean and clear with good presence through bass and treble. I love the Bluetooth feature and use that to stream various radio stations or my own music apps. I also love the style - love the tubes and the warm glow of the meter. Highly recommend

Common Questions

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TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Fosi Audio Mc331 Tube Integrated Amplifier With Dac 2 Channel | Desertcart EGYPT