Fosi Audio BT20A PRO 300W x2 TPA3255 2 Channel Bluetooth 5.0 Power Amplifier

$99.99

+ Free shipping

Save 15% | Code: FSHN15

Features

Bass & Treble Control with Midpoint Positioning

Bluetooth Pairing Cleared

Op-Amp Rolling: SS3602, MUSES02, OPA2134PA

Replaceable Knobs: Orange Knob

MODEL
Quantity

Free shipping 

Money-Back Guarantee

Customer support

24 Months Warranty

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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 Range: 20Hz-20kHz(±1.2dB)

Bluetooth 5.0 Connectivity

Allowing you to connect your devices such as mobile phones and tablets from a greater distance, support to SBC/AAC.

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.

Texas Instrument TPA3255 Chip

Has a unique smart algorithm that optimizes the output stage for max efficiency and min distortion.

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

Front Side

Back Side

Power Variability

Amplifier Comparison Table

BT20A PRO

HT4S

V3

Type

Bluetooth 2.0 CH Amp

Bluetooth 4.1 CH Amp

2.0 CH Amp

MAX Power Output

300W x 2

30w*4+60W*1

300W x 2

Input

Bluetooth + RCA

BT + 3.5mm AUX + OPT

RCA

Output

Passive SPK +Pre-out

Pre-Out+SPK Out

Passive SPK +Pre-out

Treble&Bass Control

THD

≤ 0.005%

≤ 0.03%

<0.003%

SNR

≥108dB

≥88dB

≥110dB

Learn More

  • TI TPA3255 Chip Amplifier with 300 Watts x 2 Power Output: Advanced feedback design and high-speed gate driver error correction for efficient and high-quality audio performance, with low idle losses of <2.5W.

  • Upgraded High-Efficiency: A significant upgrade from the BT20A amplifier with replaceable Op-Amps for customized. You can replace the two plug-in NE5532 Op-Amps with MUSES02/OPA2604AP/SS3602 Amps to achieve a unique sound quality. With SNR≥108dB and THD≤0.005%.

  • Enhanced Bluetooth 5.0 Connectivity: The Bluetooth pair can be cleared by pressing and holding the volume control for five seconds. In addition, it has a memory Function for Easy Pairing and Alert Tone.

  • Customizable Sound with a Wide Range of Bass and Treble Controls: The BT20A Pro home audio amplifier offers a unique design for sound control. Enjoy original sound without effects by setting treble and bass effects to the middle point.

  • What you Get: BT20A Pro Power Amplifier x1, Bluetooth Antenna x1, 32V 5A Power Adapter x1, AC Cord x1, User Manual x1, our worry-free 24-month warranty, and friendly customer service.
  • Output Power: 300Wx2 @4Ω
  • Terminating Impedance: 2-8Ω
  • Input Mode: Bluetooth + RCA
  • Output Mode: Passive Speakers + Pre-out
  • Frequency Range: 20Hz-20kHz(±1.2dB)
  • THD: ≤0.005%
  • SNR: ≥108dB
  • Chip Set: TPA3255
  • Bluetooth Transmission Distance: Up to 50Ft
  • Bluetooth Transmission Format: SBC/AAC
  • Device Dimension: 5x5x1 inches
  • DC Input Range: 24-48V
  • Power Supply: 32V 5A or 48V 5A
  • BT20A PRO Power Amplifier x 1

  • Bluetooth Antenna x 1

Customer Reviews

Based on 105 reviews
85%
(89)
11%
(12)
1%
(1)
1%
(1)
2%
(2)
H
Herr Stanislav
sehr zufrieden

Ausgezeichnete klang, Design und Funktion.

S
Shawn Leadston
Great Desktop Amp

The amp definitely has crystal clear sound. Let's be clear that this unit will not replace your high-end home stereo system. Though when used in say a desktop amp situation or small room with a pair of bookshelves, this amp really shines. Its powerful and sounds great. For that I give it a five star. However, I ultimately give it a 4 star because I do not like when companies are misleading about their specs. The 300watt output is not accurate. Can it achieve 300 watts, maybe, but not without breaking down the sound and a whole lot of noise. They should cap and advertise the power rating to something that is more sensible and capable for the amp in terms of sound quality. That is what most of us are after. That being said, for an entry level amp and for the price, this is a great unit and should not disappoint when used in the right space.

S
Stefan K.
Absolut TOP!!!

Erstaunlich leistungsstarker Bluetooth Verstärker zu fairem Geld, Kontakt zum Verkäufer absolut freundlich, und jede Frage wurde auch sofort beantwortet.
Vielen Dank nochmal, habe eine große Freude mit dem Gerät!!! :-)

B
Benny Pinaula
Another Satisfied Customer

This is my second time purchasing a Fosi amplifier, I’ve got nothing but love for these amps. Small, compact and powerful is what i wanted and Fosi amplifiers delivered!

Reviewer avatar
GK
AMAZING! Very Efficient... Highly Recommend this one.

The BT20A is my forth Amp from Fosi Audio and I can't say anything negative about it, it performs flawlessly for my needs and is clean and is more than loud enough even with the 32 volt power supply and using it at 8 ohms is far from its stated ratings I use it withTriangle BOREA BR03 speakers and they sound amazing! I never have it over of the quarter of the way turned up which is perfect for me in my office when Im working or just relaxing I did notice it got a little warm and found that Fosi actually offered a cooling fan which I ended up getting which took care of the getting warm, so if your looking for a nice little efficient and clean amp I would highly recommend this. See attached pic of it sitting on the cooling fan.