Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier, 300W x2 Wireless Amp, TPA3255 2 Channel Mini Class D Integrated Home Audio Outdoor Stereo Receiver with Bass Treble Control for Passive Speakers

Description:

About this item:

  • 300 Watts x 2 Power Output: The TI TPA3255 chip amplifier has a feedback design and high-speed gate driver error connection for efficient and quality audio performance, with a low idle loss of <2.5W
  • High-Efficiency: The chip amplifier has replaceable Op-Amps for a custom approach when compared to the BT20A amplifier. Further, you can swap the 2 plug-in NE5532 Op-Amps for LME49720HA, MUSES02, OPA2604AP, OPA2134PA, LM4562, or NJM4556AD Op-Amps to achieve distinct sound qualities. It boasts an SNR≥108dB and THD≤0.005%
  • Bluetooth 5.0 Connectivity: The Bluetooth pair can be removed by pressing and holding the volume control for 5 seconds, and it also has a memory function for easy pairing and an alert tone for convenience
  • Custom Sound with Bass and Treble Controls: The BT20A Pro home audio amplifier has a sound control design so that you can experience sound without effects by setting treble and bass effects to the middle point
  • Package Contents: The package contains a BT20A Pro power amplifier, a Bluetooth antenna, a 32V/5A power adapter, an AC cord, and a user manual
  • Review:

    5.0 out of 5

    100.00% of customers are satisfied

    5.0 out of 5 stars Great for price — and I am an audio snob

    L.O. · September 4, 2024

    I have very expensive 4 ohm speakers. Audiophile stuff from 18 years ago. They take over 100 watts. If you want to blow off roof and send dogs cowering.Great sound. But alas my bad ass amp went south after 18 years.Truth is for last few years we have been playing Spotify soundtracks through apple airport into the system. Okay I know.So do I buy another thousands dollar amp to do that? My hearing is going bad anyway, as wife will claim.This works. Drives speakers to maximum tolerable volumes, and beyond . Base is a little rough. Bluetooth works fine. But this baby has auxiliary inputs. Hooked up old airport there. Works great. Audio a bit better on airport input than on Bluetooth. Hooked up high end cd player to those same inputs. Pretty good amp. Very low end base is still a bit muddy (this might be a power issue and better with the bigger Fosi power block). Talking jazz recordings here.Guess I saved a few grand. Old audiophile meets reality. For this price? I am good.I should add, Bluetooth works great in a big house. Occasionally drops about 60 feet down in basement area. Upstairs no problem going 75 feet to end of home and my office. But we still frequently use airport. That works every where in home. At least until our old airport dies.

    5.0 out of 5 stars BT20C is one of the best audio products I've seen in ages!

    b. · December 13, 2018

    Just received my BT20C Fosi Audio Amp and couldn't be happier!I had no problems getting it going, even with the ~30 foot distance between it and the BlueTooth Source. There is no noticeable audio delay, so lip-sync to video images is a non-issue.The unit is of VERY solid construction, and delightfully small. It sits on an end table by my sofa and is hardly noticeable.My application is a little different than most, as I'm using it as a headphone receiver for BT audio from my TV to keep from bothering others in the house, since we have multiple TV sets and some are close enough to each other to hear their audio. I was concerned initially that this "speaker" unit would be way too loud to use with headphones, but I was pleasantly surprised to find that the volume control is only at about an 8 o'clock position (barely turned on) for a perfect volume level.What I really appreciate is the tone controls on this BT Receiver as my headphones tend to be a little too bassy and lacking in high frequencies, which makes TV dialog sometimes hard to understand. But with the BT20C I can turn down the bass and increase the treble for crystal clear speech. The unit's Volume control is also obviously nice to adjust the headphone volume as needed. This feature gives my freedom to use a broader range on headphones than otherwise as now I don't need to limit my choices to only headphones with an integrated volume control built into its cable.The unit runs cool to the touch and thus (as a Class "B" amplifier) should be using little power so I just keep it turned on all the time, which has the advantage of eliminating having to reconnect to the BT Source as it is always connected.A final note. I had the occasion to communicate with Fosi tech support, as I initially ordered the wrong unit by mistake and had to return it for the BT20C which is what I really wanted. My support experience was BY FAR, one of the best I can remember ever having. Very nice folks. Very helpful and did everything they said they would do. GREAT COMPANY.I would recommend this product to anyone without hesitation.

    5.0 out of 5 stars Bring new life to old speakers - Reuse/Recycle

    M. · December 12, 2018

    RECOMMEND? Absolutely yes.TESTING: So far only 2hr of testing, but so far so good. Checked sound from headphone jack of phone to RCA of amplifier - works. Paired to same phone for Bluetooth – works. (had some trouble initially with Bluetooth range, but it turned out that it was the phone and not the amp). Paired to a different phone and had a great BT connection from across the house.SETUP: Running it with two 8Ω Bose 201 (L-R) full size speakers and one 4Ω Bose sub taken from a dead 2.1 system (sub still good, hockey puck died). Room is about 10' x 12' x 9’.PROS: This is a great way to re-purpose some speakers that were just sitting around gathering dust. Most of the controls are on the front of the amp and easy to access. Good price, good features, compact, decent power, clean sound, nice appearance, no hiss/crackle/pop, good connection options (RCA, BT, speaker lugs), has manual switch from RCA to BT input so that you don't have to keep disabling BT on your devices. Easy to use and way easy to setup.EXTRA: Wonderful support! I wrote them with an issue about my BT range, and they replied in less than a day. I was surprised. Even more surprised, they had a tip that solved my problem (try a different phone)CONS: The speaker lugs are a little close together, but that comes with this extra compact form factor. The mid-range seems a bit anemic, but I have not given the amp much ‘break in’ time.SUMMARY: Really blown away that such a tiny package can drive two full sized speakers and a subwoofer, and do it adroitly. I know, Class-D, but it’s still impressive to me. Produces WAY more sound than that room can handle, and then some. Audio is clear, crisp, and distortion free. Package is compact and sturdy, with convenient controls. I have no regrets so far about this amp and look forward to using it more. (and perhaps even getting a second one for another room)

    Surprenant

    P.C. · October 17, 2024

    Remplace très avantageusement un beomaster 4500 (gourmand en énergie même en veille) et produit un son parfait sur les hauts-parleurs beosound redline et leurs caissons de basses.J'ai failli me laisser décourager par certains "influenceurs" qui estimaient que ce petit engin se destinait exclusivement à un usage avec de petites enceintes de bureau.Je recommande sans réserve

    Buena calidad a excelente precio

    C.A. · September 9, 2024

    Tengo unos buenos altavoces KEF y se me rompió el amplificador. Esta ha sido la solución definitiva.Con el transformador de serie tiene suficiente potencia, y le sobra, para mover los KEF de 80W reales. Suena nítido y realmente bienLa conexión bluetooth es rápida de conexión y sin interferencias, no como otros que probé antes más económicos que éste.Por los 99€ que me ha costado, está estupendo

    meow :3

    J.B. · August 17, 2024

    Jest ok, ale potencjometr głośności ma duży luz i może to przeszkadzać niektórym osobom

    One of the best no-nonsense amps for music lovers/audiophiles with small to medium sized rooms…

    S.C. · July 22, 2024

    I needed to gift a stereo system and I really didn’t need to think about which amp I’d pick up. It was almost a given.The Fosi, suffice to say, didn’t disappoint even when paired with speakers I originally didn’t mean to buy (I was looking for the Klipsch RP400M but couldn’t find them anywhere). And once I set the system up, the BT20A simply rose to the occasion, bad room dimensions and all.My only niggle, the volume increase is not linear. Turning up the knob doesn’t do much until about 25% up and then at 60% begins to amplify the sound exponentially. And it also does not have the resistive/expensive feel of the volume knob on the BT10A that I use as a personal desktop system

    boyutuna ve fiyatına göre beklenmeyecek güç

    K. · June 30, 2024

    2 aydır kullanmaktayım. Dclass olduğu düşünülürse gayet başarılı bir ürün

    Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier, 300W x2 Wireless Amp, TPA3255 2 Channel Mini Class D Integrated Home Audio Outdoor Stereo Receiver with Bass Treble Control for Passive Speakers

    4.5

    BHD61451

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    Product origin: United States

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