This compact Bluetooth audio amplifier allows the connection of Bluetooth devices to low impedance speakers via the built-in power amplifier. It also has an auxiliary input so devices can be connected by 3.5mm jack connection.
eBay
Waterproof Built In Digital Class D Amplifier Bluetooth-compatible Ceiling Speaker 15W 6inch Active LoadSpeaker for Indoor Audio
Aliexpress UK
The Rega Brio Integrated Amplifier is a high-quality audio component manufactured in the United Kingdom in 2004. With two stereo channels and banana speaker jacks for audio outputs, this sleek black amplifier is designed for home audio and HiFi setups. The Rega brand is known for its superior audio products, making the Brio model a reliable choice for those looking to enhance their sound system with a top-notch integrated amplifier.
eBay
Original Chip TPA3116 D2 XH-M543 12V 24V 120W*2 Dual Channel Digital Power Audio Amplifier Board 120W x2
Aliexpress UK
Good working order a few small marks have another one of these plus the pre-empt for sale please check my listings
eBay
Car Speaker For BMW F34 Front Tweeter Center Hron Seat Subwoofer Door Loudspeaker Upgrade HK Cover Power DSP Amplifer
Aliexpress UK
Superior Harman Kardon Audio Performance. Power your bookshelf, floor standing, in-wall, in-ceiling speakers, or use with other Citation products to create a multi-channel wireless surround sound system.
eBay
Bluetooth Speaker For Milwaukee/Makita/Dewalt/Bosch 18V 20V Battery With USB Type-C Port Charge Player Loudspeaker Amplifier
Aliexpress UK
The M15S is known for its robust output, capable of driving a wide range of headphones, from sensitive IEMs to demanding planar magnetics. in the box is the M15S player, original box, USB cable, and any protective cases or accessories and I'll leave the 256GB micro-SD card in the DAP too.
eBay
Set Sale 2*25W 2.0 HIFI Portable Resonance Vibration Speaker Full Range Audio Loudspeaker Bluetooth 5.0 ClassD Amplifier Theater
Aliexpress UK
Multiple Inputs & Versatile Use: This amplifier supports Bluetooth, AUX and USB inputs, making it compatible with a variety of external devices such as CD/DVD players, TVs, computers, tablets, phones and MP3 players.
eBay
Herdio 6.5'' 4PCS Bluetooth In Ceiling Speakers 600W 2-Way Flush Mount Speakers System With Wall Amplifier Receiver For Bathroom
Aliexpress UK
Package Included 1* Audio Amplifier 1* Radio Antenna 1* Remote Controller 1* English & Chinese Manual Notes Please read the manual carefully and pay attention to the safety precautions inside. Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before ordering.
eBay
Herdio 6.5'' 2PCS Bluetooth Ceiling Speakers 320 Watt Flush Mount In Wall Amplifier Receiver Perfect For Indoor Home Bathroom
Aliexpress UK
This 2-channel solid-state guitar combo from Marshall's MG series is plenty loud and simple to use. It features seperate tone controls for the clean and overdrive channels, onboard digital effects including chorus, delay and flanger, a seperate digital reverb, an effects loop, an emulated headphones/line output, and 100 watts of power pushed through 2 Celestion 12" speakers. It has quite a big, full sound being a 2x12 cab and would work great as a stand-alone rock amp, or as a budget pedal platform. In very good condition overall, with just a few small nicks and marks to the covering (see pics). A lot of amp for the money!
eBay
KYYSLB 3 Inch Passive Bookshelf Speaker Home Theater System Sound Amplifier LoudSpeaker Wooden Fever Diy Computer Audio Speaker
Aliexpress UK