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

$U8472

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Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Tiny Amp, Massive Vibes: Elevate Your Sound Game Anywhere

PLUG PLAY SIMPLICITY - One-touch power and intuitive bass/treble controls make setup and tuning a breeze—perfect for busy professionals.
POWER THAT PACKS A PUNCH - Delivers a robust 100Wx2 stereo output to energize any passive speaker setup, from bookshelf to outdoor zones.
SLEEK MINIMALIST AESTHETIC - All-black, ultra-compact design blends seamlessly into any modern workspace or living area without stealing the spotlight.
VERSATILE INDOOR OUTDOOR USE - Engineered for flexible placement—garage, patio, office, or backyard movie nights—upgrade your sound experience everywhere.
WIRELESS FREEDOM ZERO DROPOUTS - Stream your favorite playlists effortlessly with stable Bluetooth connectivity up to 40 feet—no lag, no fuss.

The Fosi Audio BT20A is a compact Class D Bluetooth stereo amplifier delivering 200W total power (100Wx2 channels) to drive passive speakers with crystal-clear sound. Featuring seamless Bluetooth streaming, simple bass/treble controls, and a sleek all-black design, it’s perfect for versatile indoor and outdoor audio setups—from home offices to backyard movie nights. Lightweight and easy to install, it’s a powerful upgrade for any millennial professional seeking premium sound without the bulk.

Specifications

ASIN	B07BQC7GNL
Best Sellers Rank	#2,310 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 out of 5 stars 9,663 Reviews
Item Type Name	Bluetooth Amplifier
Item Weight	567 Grams
Manufacturer	Fosi Audio
Mfr Part Number	BT20A
Model Number	BT20A
Unit Count	1.0 Count
Warranty Description	24-month manufacturer

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$U8472

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered 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 Uruguay.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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