OE Audio 6.5” 17cm New 2-way car audio door shelf speakers’ pair 1600W Top quality sound. 6.5" Polypropylene with Mica Injection Woofer. 4Ω Impedance 25mm ASV Voice Coil. 2 x 6.5" 2 WAY SPEAKERS. In general, the assembly and installation of the sound system should be made by trained and technically skilled specialists.
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ZEALOT-S78 120W Portable Bluetooth Speaker Outdoor Party Speaker Big Loud Speaker Excellent Bass Performace Hifi speaker
Aliexpress UK
Phoenix Gold ZX65CSS 6.5” 2-Way Component Car Speakers 225W Max – Premium Sound System. Upgrade your car’s audio system with thePhoenix Gold ZX65CSS 6.5” 2-Way Component Speaker System, designed for audiophiles and car audio enthusiasts seeking high-fidelity sound.
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8Ω 5W Portable Heavy Bass Audio Cavity 40mm Magnetic Dual Speaker for TV Monitor Cavity Speaker Magnetic Speaker Dual Speaker
Aliexpress UK
Most cars do not have a lot of extra space that can be used to position subwoofers. You go out and get yourself an under seat subwoofer. The best place to install a small powered subwoofer would be under the driver ’ s or passenger ’ s seat, behind the back seat or in the back seat.
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●2Pcs 20mm 24mm 4 Ohm 3W Mini Sound Speakers Round Bass Speaker Home Theater Loudspeaker Portable DIY Speakers
Aliexpress UK
HE 3800 ENGINEERED FOR HIGH PERFORMANCE CAR AUDIO SYSTEMS Had battery in my own car audio set up !! Very good heavy quality battery paid £450 back when I bought it!! Still got plenty of life and power left in it!! Ideal for big car audio set up!! 
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8 Inch 800W Car Under-Seat Active Subwoofer Power Amplifier Bass Box Car Ultra Slim Subwoofer Car Stereo Audio Speaker 20-150Hz
Aliexpress UK
Upgrade your factory sound with the Focal Auditor ACX100 4″ coaxial speakers. Car Speakers. Speaker size: 4″ / 100mm (10cm). Coaxial Speakers. 2-Way coaxial speaker design. Ideal for replacing factory door speakers and achieving the renowned Focal sound quality at an affordable level.
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Car Subwoofer 6.5 inch 200W Audio Bass Speaker Car Component Stereo Modification for Car & Home Theater System Upgrade Woofer
Aliexpress UK
ALPINE S2-S40C - 140W PEAK POWER PER SIDE - TOTAL 280W POWER. Integrated 2cm (¾“) Tweeters (Component). 2x In-line Crossovers for the tweeters. 2x Tweeters. Includes 2 x midrange speakers, 2 x tweeters and 2 x crossovers.
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30W 4ohm Vibro Speaker Low Frequency Bass Shaker Amplified Woofer for Car Seat Hifi Speaker System Home Movie Theater Cushions
Aliexpress UK
Product Features:*600w Bass, the 68mm Thin Subwoofer Is Directly Installed Under the Passenger Seat*8 Inch High-power Active Subwoofer, Excellent Low Frequency Performance, Pure Low Music Output, Surging Sound Effect*Pu Leather Wooden Body*High-strength Stainless Steel Horn Protective Net Cover, Black Paint, Not Easy to Rust*1.4mm Thick Mesh Material, Strong Pressure Resistance*Frequent Maintenance and Maintenance Will Enable the Speaker to Obtain Longer Battery Life.1. Wiring: Three Wires Must Be Connected2. Adaptation: All Cars with 12v Power Supply Can Be UsedProduct Information:Speaker Size: 8 InchesTotal Harmonic Distortion: <0.4%Frequency Response: 20hz-150hzSignal to Noise Ratio: ≥90dbBass Boost: 0 to+ 12dbRated Power: 600wProduct Size: 345mm* 260mm*68mm.
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AIYIMA 6.5 Inch Audio Car Midrange Bass Speakers Home Theater 4 8 Ohm 60W Glass Fiber Bullet Woofer Loudspeaker DIY Sound System
Aliexpress UK
The Kicker 600W Car Speakers are designed for high performance audio with a peak power of up to 1500W. These 12-inch speakers feature a heavy MDF construction and a thick black carpet exterior, making them durable and stylish. The speakers have a sensitivity of 95.3 dB and an impedance of 2 ohm, providing clear and powerful sound. With a custom port design and a single 2-ohm terminal configuration, these speakers offer excellent bass and loud audio for an immersive driving experience. Made in the United States by Kicker Audio, these speakers are reliable and built to last.
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Car Audio 8 "10" 12 "speaker Heavy Subwoofer Speaker Double Voice Coil Double Magnetic Pure Bass Passive
Aliexpress UK