What is the power source? is there any built-in adopter for 230v ac to 12 v dc?

Vendor is supplied 230V ac/24V dc adopter along with Amplifier. No need to buy separately

What is the power source? operating voltage 12v dc, is there any adopter to to operate from household ac line?

Vendor is supplied 230V ac/24V dc adopter along with Amplifier. No need to buy separately

Is 80w and 6 ohms speak compatible with this amp?

Yes. It can support 100w speaker on each channel.

6 ohms spekaers can be connected with this amp?

I have connected to Polk Audio Atrium 5 (8 Ohms) outdoor speakers.. I feel 6 ohm speaker should not be a problem , but might have issue with 4 ohms Speakers.

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BT20A

Product ID: 211471945

Details

Item dimensions L x W x H
13.2 x 9 x 3.6
Manufacturer
Fosi Audio
Maximum Supply Voltage
24 Volts
Minimum Supply Voltage
12 Volts
Voltage
230 Volts

📶Bluetooth 5.0 with 50ft range

🔊100W x 2 RMS power output

🎚️Bass & Treble analog control

€ 223.55

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Description

🎧 Elevate your home audio game—because your speakers deserve the best!

COMPACT YET MIGHTY - Sleek mini design fits anywhere without sacrificing Hi-Fi sound fidelity.
TRUSTED TECH INSIDE - Equipped with dual Texas Instruments TPA3116D2 chips for efficient, noise-free amplification.
POWERHOUSE PERFORMANCE - Delivers crisp, room-filling 200W stereo sound for your home setup.
PRECISION SOUND TUNING - Customize your audio vibe with dedicated bass and treble controls for that perfect balance.
SEAMLESS WIRELESS STREAMING - Bluetooth 5.0 ensures lag-free audio up to 50 feet—cut the cords, not the quality.

The Fosi Audio BT20A is a compact Class D stereo amplifier featuring Bluetooth 5.0 connectivity with a 50ft range, dual 100W RMS output channels powered by Texas Instruments TPA3116D2 chips, and analog bass and treble controls. Designed for passive home speakers, it delivers high-fidelity sound with minimal distortion and no audible noise during wireless streaming, making it a powerful yet space-saving solution for audiophiles seeking premium sound quality.

Specifications

ASIN	B07BQC7GNL
Best Sellers Rank	#129,821 in Electronics ( See Top 100 in Electronics ) #193 in Hi-Fi Amplifiers
Box Contents	1 electronic component amplifier
Brand Name	Fosi Audio
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (8,728)
Item Weight Unit of Measure	567 Grams
Manufacturer	Fosi Audio
Manufacturer Part Number	BT20A
Model Number	BT20A
Number of Items	1
Unit Count	1 Count
Warranty Description	no warranty available

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€ 223.55

Duties & taxes included

In stock

Sold byAmazon LithuaniaDelivered 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 Lithuania.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Best international shipping I've ever tried. Worth every penny!

3 days ago

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