Make it a bundle
We found 4 bundles with this item:
Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier 300W x2 TPA3255 2 Channel Mini Class D Integrated Home Audio Outdoor Stereo Amp Receiver for Speakers Supports 24-48V with Bass Treble Control
Page 1 of 1Start overPage 1 of 1
Frequently bought together
This item: Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier 300W x2 TPA3255 2 Channel Mini Class D Integrated Home Audio Outdoor Stereo Amp Receiver for Speakers Supports 24-48V with Bass Treble Control
$99.99
Get it as soon as Sunday, Jul 28
In Stock
+
$33.18 ($2.77/Count)
Get it as soon as Sunday, Jul 28
In Stock
+
$16.15 ($0.16/Foot)
Ships from and sold by Amazon.com.
Total price:
To see our price, add these items to your cart.
Choose items to buy together.
You might also like
Page 1 of 1 Start overPage 1 of 1
From the brand
Amplifying Your Voice, Shaping Our Innovation
-
Discover Fosi Audio - Your HiFi Solution! We're a tech-driven brand, crafting innovative audio products around the world. Our vision: Affordable excellence for each consumer. Our mission: Redefining HiFi with cost-effective innovations. Join Fosi Audio on this unique audio journey!
-
-
-
-
-
-
-
Fosi Audio V3
TPA3255 Class D Home Audio Mini Speaker 2 Channel Amp 300 Watts x2
-
Compare with similar items
This Item  Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier 300W x2 TPA3255 2 Channel Mini Class D Integrated Home Audio Outdoor Stereo Amp Receiver for Speakers Supports 24-48V with Bass Treble Control |  |  |  |  |  | |
| Price | $99.99 | $79.99 | $99.99 | $189.99 | $79.99 | $149.99 |
| Delivery | Get it as soon as Sunday, Jul 28 | Get it as soon as Sunday, Jul 28 | Get it as soon as Sunday, Jul 28 | Get it as soon as Monday, Jul 29 | Get it as soon as Monday, Jul 29 | Get it as soon as Sunday, Jul 28 |
| Customer Ratings | ||||||
| Value for money | ||||||
| Volume control | ||||||
| Sound quality | ||||||
| Quality of material | ||||||
| Sold By | Fosi Audio | Yima Top | Yima Top | Hifi Made Fun | Hifi Made Fun | Fosi Audio |
| number of channels | 2 | 2 | 2 | 2 | 2 | 2 |
| voltage | 32 volts | 230 volts | 230 volts | 110 volts | 110 volts | 230 volts |
| mounting type | — | Speaker | Tabletop mount | — | — | Surface Mount |
Product Description
The upgraded version of Fosi Audio BT20A
Fosi Audio BT20A Pro 600W TPA3255 Bluetooth 2.0 CH Amplifier
- Input: Bluetooth + RCA; Output: Passive Speakers + Pre-out
- Amp chip: TPA3255; MAX Output Power: 300Wx2@4Ω
- THD: ≤ 0.005%; SNR: ≥108dB; Frequency Response rRange: 20Hz-20kHz(±1.2dB)
- Bluetooth Distance: ≥15m; Bluetooth Transmission Format: SBC/AAC
-
Bluetooth 5.0 Connectivity
Allowing you to connect your devices such as mobile phones and tablets from a greater distance.
-
Unique Design for Sound Control
Experience the authentic sound without any added effects by adjusting them to their middle points.
-
Full-range Pre-Out Output
Easily connect to a powered subwoofer, speaker, or another amplifier for versatile audio options.
1 Bluetooth 5.0 2 Treble/Bass Control 3 PRE-OUT
-
Texas Instrument TPA3255 Chip
Has a unique smart algorithm that optimizes the output stage for max efficiency and min distortion.
-
Upgrade Audio Performance
Achieve a Distinct and Exceptional Sound Quality
The two plug-in NE5532 Op-Amps can be replaced by LME49720HA/MUSES02/OPA2134PA Op-Amps, etc.
-
High Precision and Stability Inductance Values
- Low DC resistance and excellent frequency characteristics which improve performance
1 TPA3255 CHIP 2 Replaceable OP CHIP 3 High Power Inductors
BT20A PRO
Comparison Chart
Bluetooth 2.0 CH Amp | Type | Bluetooth 2.1 CH Amp |
300W x 2 | MAX Power Output | 165W x 2 + 350W @ 4Ω |
Bluetooth + RCA | Input | BT+RCA+COA+OPT+USB |
Passive SPK +Pre-out | Output | SPK/SUB/PRE OUT |
| | Treble&Bass Control | |
≤ 0.005% | THD | ≤0.03% |
≥108dB | SNR | ≥100dB |
Bluetooth 2.0 CH Amp | Type | 2.0 CH Amp |
300W x 2 | MAX Power Output | 300W x 2 |
Bluetooth + RCA | Input | RCA |
Passive SPK +Pre-out | Output | Passive SPK +Pre-out |
| | Treble&Bass Control | |
≤ 0.005% | THD | <0.003% |
≥108dB | SNR | ≥110dB |
Bluetooth 2.0 CH Amp | Type | Headphone Amp+Preamp |
300W x 2 | MAX Power Output | - |
Bluetooth + RCA | Input | Bluetooth + RCA |
Passive SPK +Pre-out | Output | RCA+Headphone+AUX |
| | Treble&Bass Control | |
≤ 0.005% | THD | ≤ 0.02% |
≥108dB | SNR | ≥103dB |
Bluetooth 2.0 CH Amp | Type | Headphone Amp/Preamp |
300W x 2 | MAX Power Output | 2400mW@32Ω(High) |
Bluetooth + RCA | Input | 3.5mm line in |
Passive SPK +Pre-out | Output | Line out, headphone |
| | Treble&Bass Control | |
≤ 0.005% | THD | <0.001% |
≥108dB | SNR | ≥108dB |
Videos
Page 1 of 1Start OverPage 1 of 1
Videos for this product
1:38
Click to play video
Six NEW features you will LOVE on the BT20A PRO!!!
Aaron Hartley
Videos for this product
2:48
Click to play video
Fosi Audio BT20 Pro first impression
Tools. Electro. DIY
Videos for this product
10:18
Click to play video
Fosi Audio BT20A Pro 300Wx2 TPA3255 Bluetooth 2-CH Amplifier
Fosi Audio
Videos for this product
1:28
Click to play video
How to use Bluetooth on Fosi Audio BT20A Pro
Tools. Electro. DIY
Videos for this product
1:10
Click to play video
Customer Review: Good for the price simple to use
oswaldo
Videos for this product
0:40
Click to play video
Fosi Audio BT20A Pro 300Wx2 TPA3255 Bluetooth 5.0 Home Audio
Fosi Audio
Videos for this product
2:21
Click to play video
How to Fix No Sound Issues When Connected to Bluetooth
Fosi Audio
Videos for this product
1:11
Click to play video
Stream Hi-Fi Music to Your Stereo System
Fosi Audio
Reviews with images
Best Fosi Audio for a pair of Stereo Speakers! Not all TPA3255 are the same!
I recently purchased both this and the BT30D Pro and ended up sticking with this unit as I definitely can hear the differences between the two. My main listening comparison was on a Triangle Borea Br03 pair of bookshelf speakers being fed either through Bluetooth and on my PC via Soundblaster Zx soundcard as my DAC. Music source was via Tidal "Master" quality audio tracks (FLAC)My main experience came from a Denon AVR-X6500h powering a Klipsch RP-8000F in my Home Theatre and trying this out gave me a pretty impressive feel for what $80 could do although my Denon ($2000+ MSRP) undoubtedly significantly sounded better with its class AB amplifier vs class D on the BT30D Pro.Combinations Tested (ranked from best sounding to least):Denon X6500h -> Triangle Borea Br03Soundblaster Zx -> BT20A Pro -> Triangle Borea Br03Denon X6500h -> Klipsch RP-8000F (Bi-Amped) + 2x SPL-120Soundblaster Zx -> BT30D Pro -> Triangle Borea Br03Bluetooth -> BT30D Pro -> Triangle Borea Br03Bluetooth -> BT30D Pro -> Klipsch RP-8000FI set both units to Tone Controls at flat (12 o'clock) and volume at (3 o'clock or 75%), gave it the best sound. Comparing the BT30D Pro to the BT20A Pro, the BT20A was less boomy, and more clear sounding giving me a feeling closer to my Denon AVR (about halfway better). The difference could be best described as better low end bass response and more "warm". Despite both units utilizing a TI TPA3255, the BT20A also has replaceable Op-Amps (NE5532) which may be a differentiator. The BT30D Pro can push 2x175w into 4 ohms with a THD of 0.04%, while the BT20A can do up to 300Wx2 into 4 ohms with a THD of 0.005%.The BT30D pro definitely sounds like an excellent value but it felt it definitely gave up some sound quality compared to the BT20A so if you don't need the passive subwoofer output I'd stick with the 20A which has a pre-out for an active subwoofer as well. I'm glad I went this setup over a Klipsch Fives, Sevens, or Nines although I haven't heard those speakers but if they're like my RP-8000F the Triangle's definitely sound better for music.Other key improvements on the BT20A Pro over the BT30D Pro include:- Tone knobs have an indent for a "flat response"- Volume knob can be used to reset "bluetooth pairings"- Upgradeable Op-AmpsIn addition the points brought up above:- Better sound over BT30D Pro (more power, less harmonic distortion)- Flatter responseThis is now really making me think again about switching my setup to a Marantz Cinema 70s / NR1711 since this Fosi is much closer to my Denon in terms of performance.
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
Reviewed in the United States on June 16, 2023
Reviewed in the United States on October 1, 2023
I purchased this amp to run a 2.1 system in my garage. What attracted me to the unit was the small form factor, built in Bluetooth, bass and treble controls and the active 3.5mm output for a sub.
I connected the amp to a pair of Sony SSCS5 speakers and an older 10" sub I had to the 3.5mm port. Connecting my Android phone was quick. My phone saw the amp right away. It would be nice if a password was required to ensure no one else could connect to the unit. The sound quality was nice and the unit had more than enough power to run the Sony speakers to the levels I needed for listening in my garage. Bass and treble adjustments sound nice, not digitally enhanced. After an hour of listening the unit got a little warm, but not hot. My only gripe, and the reason I removed 1 star, is that the hashmark on one of the knobs is misaligned (see pic). Seems like the quality control isn't quite there, but overall I would recommend this unit.
I connected the amp to a pair of Sony SSCS5 speakers and an older 10" sub I had to the 3.5mm port. Connecting my Android phone was quick. My phone saw the amp right away. It would be nice if a password was required to ensure no one else could connect to the unit. The sound quality was nice and the unit had more than enough power to run the Sony speakers to the levels I needed for listening in my garage. Bass and treble adjustments sound nice, not digitally enhanced. After an hour of listening the unit got a little warm, but not hot. My only gripe, and the reason I removed 1 star, is that the hashmark on one of the knobs is misaligned (see pic). Seems like the quality control isn't quite there, but overall I would recommend this unit.
Images in this review
Reviewed in the United States on December 12, 2018
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)
Bring new life to old speakers - Reuse/Recycle
Reviewed in the United States on December 12, 2018
RECOMMEND? Absolutely yes.Reviewed in the United States on December 12, 2018
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)
Images in this review
Reviewed in the United States on June 18, 2024
Top reviews from other countries
Kayhan
boyutuna ve fiyatına göre beklenmeyecek güç
Reviewed in Turkey on June 30, 2024Kljo
Fosi Audio BT20A Pro: Großer Klang im kleinen Paket
Reviewed in Germany on May 13, 2024