This model is known for its superior sound quality and performance, making it a popular choice among audiophiles and music enthusiasts.
eBay
SOTAMIA 1Pcs 2 Inch Subwoofer Passive Speaker 4 Ohm 10-15W Dual Diaphragm Waterproof Computer Music Speaker for Power Amplifier
Aliexpress UK
Fully working and retested today. Originally bought from an audio shop a few months ago, where it was verified as working. Includes the TA-SA200WR unit, original power cable, and the EZW-RT10A S-Air wireless transceiver. Cosmetic wear on the casing from age, nothing affecting performance. This is the wireless rear-surround amplifier used with compatible Sony S-Air home theatre systems. It connects wirelessly only (no audio inputs). Speaker outputs use Sony 2-pin connectors. Hard-to-find replacement part for Sony S-Air systems, especially with the transceiver included.
eBay
CHOSEAL Speaker Wire Oxygen Free Cooper Speaker Cables For Home Theater Hi-Fi Subwoofer Amplifer Audio Wire Soft Touch
Aliexpress UK
The Sony STR-DE245 FM Stereo/FM-AM Receiver is a sleek black stereo receiver designed by Sony. With support for FM modes and 5.1 channels, this model offers high-quality sound for your listening pleasure. Perfect for enhancing your audio experience at home, this receiver is a reliable choice from a trusted brand. Please see images for condition. It does have scratches. Many thanks for looking
eBay
Car Audio Modified Trunk Hidden Subwoofer RMS300w High Power Speaker DC12v Active Power Amplifier Car Audio System Woofer Module
Aliexpress UK
The Edwards Audio HA1 Head Phone Amplifier is a high-quality headphone amplifier designed for audiophiles seeking exceptional sound quality. With stereo L/R RCA audio inputs and outputs, this amplifier by Edwards Audio guarantees precise sound reproduction. The sleek black design adds a touch of elegance to any audio setup, making it a stylish and functional addition to any audio enthusiast's collection. The HA1 model offers top-notch audio performance and reliability for those looking to enhance their listening experience. Used in good condition.
eBay
NEW Bluetooth Speaker For Milwaukee/Makita/Dewalt/Bosch 18V 20V Battery With USB Type-C Port Charge Player Loudspeaker Amplifier
Aliexpress UK
It is heavy and very well built. Have a Google for full details and spec. For sale is this superb Audiolab 8000SX Power Amplifier. I would class this Amplifier as being in a good, used condition with lots of few marks, scuffs, scratches and signs of wear and use.
eBay
8 Inch 800W Car Under-Seat Active Subwoofer Power Amplifier Bass Box Car Ultra Slim Subwoofer Car Stereo Audio Speaker 20-150Hz
Aliexpress UK
You for a little while in a rack mounted unit surface to requirement. Will be shipped well packaged. 
eBay
Portable Type-C Plug Type-C Speaker Loudspeaker Plug-and-play Cellphone Sound Amplifier Subwoofer Mini Sound Box Mobile Phone
Aliexpress UK
Cambridge Audio A2 Integrated Amplifier Hifi Separate Tested and working Please see pictures for condition
eBay
AIYIMA 2Pcs 3 Inch Audio Portable Speakers Full Range 4 Ohm 10 W Sound Amplifier Speaker Multimedia Loudspeaker DIY Home Theater
Aliexpress UK
Chord Hugo (Silver) – Portable FPGA DAC & Headphone Amp – All Accessories – Chord-fitted New Batteries. Sounds superb with both headphones and as a DAC into a hi-fi system. • Chord Hugo (silver). Key points.
eBay
10GA Car Audio Speakers Wiring Kit Subwoofer Amplifier 1500W Installation Wire 60A Fuse Holder Cable Vehicle Modification Parts
Aliexpress UK