How do I switch between RCA and Bluetooth on the BT20A?

Bluetooth takes priority over RCA. To switch to RCA, restart the device or disconnect Bluetooth.

What is the position for flat frequency response on the amplifier?

The middle position (12 o’clock) provides a flat frequency response.

What type of DC plug do I need for the BT20A’s power supply?

The DC barrel connector dimensions are 5.5*2.5mm.

What's the upgraded version of the BT20A amp, and what accessories come with it?

-If you're seeking the upgraded version of the BT20A, please consider the BT20A Pro amp.

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BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor/Outdoor/Garage/Ceiling/Bookshelf Speaker

Product ID: 62378448

Details

Item dimensions L x W x H
5.2 x 3.54 x
Manufacturer
Fosi Audio
Maximum Supply Voltage
24 Volts
Minimum Supply Voltage
12 Volts (DC)
Voltage
230 Volts

📶Seamless Bluetooth streaming

🔊200W max output power

🎛️Smooth bass & treble controls

R3744

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎵 Elevate your sound game—because your space deserves more than just noise.

WIRELESS FREEDOM - Stream your favorite playlists directly from your phone with zero dropouts or lag.
SLEEK MEETS STURDY - All-black, compact design blends seamlessly with modern decor while built to last.
VERSATILE SOUND HUB - Perfect for indoor, outdoor, garage, or bookshelf speakers—your audio, your rules.
PLUG PLAY SIMPLICITY - Effortless setup with one-touch power and intuitive controls—no tech degree required.
POWER THAT PACKS A PUNCH - 100Wx2 Class D amplifier delivers crystal-clear, room-filling sound for any space.

The Fosi Audio BT20A is a compact yet powerful 2-channel Class D Bluetooth amplifier delivering up to 200W total output. Designed for versatile use with passive speakers, it features seamless Bluetooth connectivity, easy setup with bass and treble tuning, and a durable all-black design that fits any environment from home to garage. Backed by a 24-month warranty and highly rated by thousands, it’s the smart choice for millennials seeking premium sound without the hassle.

Specifications

ASIN	B07BQC7GNL
Best Sellers Rank	#3,449 in Electronics ( See Top 100 in Electronics ) #4 in Audio Component Amplifiers
Brand	Fosi Audio
Built-In Media	Fosi Audio BT20A Amplifier x1, 24V 4.5A Power Supply x1, User Manual x1
Customer Reviews	4.5 4.5 out of 5 stars (9,112)
Item Type Name	Bluetooth Amplifier
Item Weight	567 g
Manufacturer	Fosi Audio
Mfr Part Number	BT20A
Model Number	BT20A
Number of Items	1
Unit Count	1 Count
Warranty Description	24-month manufacturer

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R3744

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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