Can these be connected to skytronic 125.061 100w 4ohm ceiling speakers?

not sure.i have them connected to jbl 100 w speakers. copes fine

Can I use it for 2 Technics speakers, 3way, 6ohm, 100w each?

I've got it wired to my old Gale Gold Mark 2, rated 6-8 ohms 100w I think? Sounds great!

I want to use a 12v adapter. What size adapter pin/head is required? I have tried a few spares that I had, but none of them fit.

OD: 5.5mm; ID: 2.5mm BT20A comes with a 24V adapter, you can find one like its size.

Can a technics direct drive turntable work via the rca input or does the turntable need a preamp?

The input sensitivity is stated as less than or equal to 280mV. If your turntable outputs I similar voltage (I guess in the range of 150 to 280mV) then I would say you probably don't need a preamp. However, if it's output is a lot less, you will need a preamp. Fosi have a range of turntable preamps to choose from. Look up the specs of your turntable to find it's output voltage range. Hope that helps.

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BT20A Bluetooth Amplifier for Speakers, Mini Stereo 2 Channel Amp Class D, with TPA3116 Chips 100W x 2 and Bass Treble Controls, for Home Audio Outdoor Passive Desktop Bookshelf Speakers

Product ID: 68014327

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 output power

🎚️Adjustable bass & treble controls

R206

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

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Description

🎧 Elevate your sound game—small amp, mighty impact!

TRUSTED RELIABILITY - Backed by a 24-month warranty and crafted with premium components for lasting use.
POWERHOUSE PERFORMANCE - Dual 100W Class D amps deliver room-filling sound with crystal clarity.
COMPACT DURABLE DESIGN - Sleek, all-metal chassis fits anywhere—home, office, or outdoor setups with style.
TAILORED AUDIO EXPERIENCE - Fine-tune your sound with intuitive bass and treble controls for perfect balance.
SEAMLESS WIRELESS STREAMING - Bluetooth 5.0 connectivity ensures stable, high-quality audio up to 15 meters.

The Fosi Audio BT20A is a compact yet powerful Bluetooth amplifier featuring dual 100W Class D TPA3116 chips, delivering crisp, immersive audio with adjustable bass and treble. Its Bluetooth 5.0 connectivity supports wireless streaming up to 50 feet, making it perfect for home, office, or outdoor use. Built with a durable all-metal body and backed by a 2-year warranty, this mini stereo amp offers exceptional value and performance for audiophiles and casual listeners alike.

Specifications

ASIN	B07BQC7GNL
Best Sellers Rank	1,983 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 2 in Hi-Fi Amplifiers
Box Contents	Bluetooth Antenna x1, 32V 5A Power Supply x1
Brand Name	Fosi Audio
Country of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (9,416)
Item Weight	567 Grams
Manufacturer	Fosi Audio
Manufacturer Part Number	BT20A
Model Number	BT20A
Number of Items	1
Product Warranty	2 years
Unit Count	1.0 count

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R206

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

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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1 month ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

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