105 watts RMS x 2 at 4 ohms. 180 watts RMS x 2 at 2 ohms. 360 watts RMS x 1 bridged output at 4 ohms. 2-channel car amplifier. Class-AB amplifier design. Dynamic soft clipping protects speakers from distortion.
eBay
Square 2.25 Inch Audio Sound Speaker 8 Ohm 3W 57mm Full Range Speaker Edge Amplifier Home Loudspeaker DIY Keyboard Horn Toy
Aliexpress UK
The adaptation to modern factory sound systems makes an increasing number of signal inputs an increasingly complex signal routing in the amplifier inevitable. Especially when several input signals are mixed together and then broken down again into multi-path systems, conventional routing concepts quickly reach their limits.
eBay
Bolanle PH400 4-Channel Stereo Headphone Amplifier,Distribution System Maximum push of 600 ohm headphones RGB lighting effect
Aliexpress UK
Non-resonant ABS/fiberglass woofer basket. Once all connected the built in amp within the under seat will automatically be ready to power the upgrade Focal speakers also supplied in this kit. The tweeters in the kit are also supplied with different mounting options just in case the factory location can not be used.
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SOTAMIA 1Pcs 2 Inch Subwoofer Passive Speaker 4 Ohm 10-15W Square Dual Diaphragm Waterproof Mini Speaker for Power Amplifier
Aliexpress UK
FD2200 - Arc Audio 2-Channel 370W RMS 740W Max Car Amplifier. Input sensitivity: 250mV - 2.5V. Heavy duty construction. Features & Specifications Fuse: 45A x1. Crossover: 55Hz - 5.5KHz variable 12 dB.
eBay
For Makita/Dewalt 18V Li-ion Battery Bluetooth Speaker With USB Type-C Port Charge Player Loudspeaker Amplifier for Home,Party
Aliexpress UK
A new chassis has also been designed for optimal integration and a more elegant design. The Focal Flat sub woofer enclosure wont only give you great bass and will improve the whole sound system of your vehicle!
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2.5 Inch Square Ultra-thin speaker 8 ohm 1W 3W 8R Diameter 66*66MM Full Range waterproof Speaker Edge Amplifier Home Loudspeaker
Aliexpress UK
Focal ISUB Active 2.1 Compact Underseat Car Subwoofer with 2 Channel Amplifier ISUB ACTIVE 2.1 AMPLIFIED SUBWOOFER WITH 2 CHANNEL AMP AMPLIFIED SUBWOOFER 2-CHANNEL AMPLIFIER The ISUB ACTIVE 2.1 subwoofer is the perfect way to complete any factory audio system by bringing powerful (260W) and dynamic bass as well as amplifying the vehicle’s front channels (2.1).
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XIKCU Portable Voice Amplifier Megaphone Mini Audio Speaker With Microphone Rechargeable Ultralight Loudspeaker For Teachers
Aliexpress UK
Focal iBUS2.1 - 20cm 8" Active Amplified Under Seat Car Subwoofer 2.1 Bass System with a Pair of Focal 165AC 6.5" 2 Way Car Door Speakers Upgrade Kit. 1 x Focal 165AC Access Series Pair Car Speakers. Focal 165AC Features.
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TempoTec MARCH V-M5 USB Bluetooth DAC& Class A Headphone AMP,Coaxial,SPDIF optical In, 4.4BAL,6.35PO out.PCM768kHz,DSD512
Aliexpress UK
155 watts RMS x 2 at 4 ohms (265 watts RMS x 2 at 2 ohms). 530 watts RMS x 1 bridged output at 4 ohms (750 watts RMS x 1 at 2 ohms). 1-ohm stable in stereo mode (430 watts RMS x 2 at 1 ohm). 2-channel car amplifier.
eBay
8-inch Subwoofer Empty Box,Passive Bass Speaker Box,1Piece Woofer Box,DIY Car/Home Amplifier Speaker Housing,Bass Sound Box
Aliexpress UK