Change the frequency to apply more speakers. The old crossovers are rigid. If they are not suitable for users, they cannot be changed after they are installed. And the cost is higher. Powerful bass effect.
eBay
Subwoofer Para Coche 8 Inch Car Subwoofer 450W High Power Audio Woofer Modification Stereo Speakers For Cars Auto Accessories
Aliexpress UK
Change the frequency to apply more speakers. The old crossovers are rigid. If they are not suitable for users, they cannot be changed after they are installed. And the cost is higher. Powerful bass effect.
eBay
Car Active Subwoofer 11 Inch Spare Tire Bass Speaker 150w Car Spare Wheel Woofer Subwoofers Pure Bass Horn Cars Accessories
Aliexpress UK
Frequency divider only, other accessories demo in the picture is not included! Filtering: Bass Subwoofer. Frequency point:410Hz. Power: 1200W.
eBay
1pcs 6.5/8/10 Inch Car Subwoofer High Power 35 Core 100 Magnetic Car Speakers Music Stereo Subwoofer Car Speaker Modification
Aliexpress UK
Change the frequency to apply more speakers. The old crossovers are rigid. If they are not suitable for users, they cannot be changed after they are installed. And the cost is higher. Powerful bass effect.
eBay
Car subwoofer 10 inch 12v high power active car audio subwoofer car speaker modification
Aliexpress UK
Change the frequency to apply more speakers. The old crossovers are rigid. If they are not suitable for users, they cannot be changed after they are installed. And the cost is higher. Powerful bass effect.
eBay
10 Inch Car Active Subwoofer Car Audio Modified 12V Powerful Speaker Amplifier Subwoofer Auto Electronics Accessories 1200W
Aliexpress UK
Capping power: 200W. Change the frequency to apply more speakers. The old crossovers are rigid. If they are not suitable for users, they cannot be changed after they are installed. And the cost is higher.
eBay
600w Peak Power Wooden 8 Inch Car Seat Under Less Than 8cm Thick Subwoofer Horn Car Audio Woofer 12v Car Subwoofer Body
Aliexpress UK
Change the frequency to apply more speakers. The old crossovers are rigid. If they are not suitable for users, they cannot be changed after they are installed. And the cost is higher. Powerful bass effect.
eBay
6 Inch Car Subwoofer Para Coche 12V Trapezoidal Active Car Audio Subwoofer Modified Speakers Cars Accessories Speaker 400W
Aliexpress UK
The integrated speaker Hi-Level Converter ensures low-level RCA output for seamless integration with your existing system. DS18 EQX7PRO. This high-strength 7-band stereo equalizer/crossover is the upgrade needed to achieve your audio dreams.
eBay
Car Subwoofer 10 Inch 800W Under Seat Car Audio Subwoofer Modified 12v High Power Audio System Amplifier Amplified Car Speaker
Aliexpress UK