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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Fosi Audio 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 5.0 streaming

🔊200W max output power

🖤Compact all-black Class D design

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MX$3785

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Description

🎶 Tiny Amp, Massive Vibes — Upgrade Your Sound Game Instantly!

PLUG PLAY SIMPLICITY - Effortless setup with one-touch power and intuitive bass/treble controls lets you customize your sound without the hassle.
POWER THAT PACKS A PUNCH - Delivers a robust 100Wx2 stereo output to energize any passive speaker setup, from bookshelf to outdoor zones.
VERSATILE SOUND FOR EVERY SPACE - Perfectly suited for indoor, outdoor, garage, or patio use—turn any environment into your personal concert hall.
WIRELESS FREEDOM ZERO DROPOUTS - Enjoy flawless Bluetooth connectivity that streams your favorite playlists with crystal-clear sound and no lag.
SLEEK MINIMALISM MEETS DURABILITY - All-black, compact Class D amplifier blends effortlessly into any modern workspace or living area while built to last.

The Fosi Audio BT20A is a compact yet powerful Class D Bluetooth stereo amplifier delivering 200W total output (100Wx2). Designed for passive speakers, it offers seamless Bluetooth streaming, easy setup with bass and treble controls, and a sleek all-black finish that fits any décor. Ideal for indoor and outdoor use, it transforms ordinary spaces into immersive audio experiences with professional-grade sound quality.

Specifications

ASIN	B07BQC7GNL
Best Sellers Rank	#1,899 in Electronics ( See Top 100 in Electronics ) #5 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 (9,620)
Item Type Name	Bluetooth Amplifier
Item Weight	1.5 Pounds
Manufacturer	Fosi Audio
Mfr Part Number	BT20A
Model Number	BT20A
Unit Count	1.0 Count
Warranty Description	24-month manufacturer

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MX$3785

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In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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