Stable, durable circuitry lessens the risk of high input power for the unit to achieve 1 Ω connection. This design enhances the flexibility to connect multiple subwoofers to a system. The GM-D9701 LPF is adjustable from 40 Hz to 240 Hz.
eBay
1.0 power amplifier subwoofer board audio amplifier placa amplificador subwoofer,100W subwoofer amplifier board a400 sub200
Aliexpress UK
Peak Output Power: 7800W. This 4-channel Amplifier Is 2-ohm Stable (4-ohm Bridged), High-level (horn) / Low-level (RCA) Input, Variable Electronic High-pass / Low-pass Crossover, Selectable 12dB Bass Boost EQ, Gain And Protection Circuitry For Impedance Overload, Horn Short Circuit, Thermal Overheating And DC Output.
eBay
Nobsound M5.1 Digital Bluetooth Receiver 5.1 Channel Coaxial/Optical Home Theater Power Amp U-disk Subwoofer Amplifier
Aliexpress UK
4 GAUGE AMPLIFIER INSTALL KIT COMPLETE AMP WIRING CABLES. Complete 4 Gauge Amplifier Install Kit 1 Amp Wiring Kit. 1 Audio Cable. 1 Power Cable.
eBay
AIYIMA A1001 100W Subwoofer Amplifier TPA3116 Power Amplifier Speaker Sound Amplificador Digital Class D Mono Home Audio AMP
Aliexpress UK
Car 12V 500W 2-channel Mini Hi-Fi Stereo Audio Amplifier. RMS Power: 500W. 1x Audio Amplifier with Cable. Rated Input Current: 3A. Perfect for handling your audio demands in style. Frequency Response: 20Hz~20KHz.
eBay
Douk Audio M1 PRO HiFi Bluetooth 5.0 Stereo TDA7498E Power Amplifier Wireless Receiver USB Player Subwoofer Amp 160W*2
Aliexpress UK
Alpine SWE-815 Subwoofer Amplified Powered Active Sub with Wired Remote 100w RMS Ready-to-use amplified subwoofer box 8” (20cm) Amplified Subwoofer Box SWE-815 This product gives you plenty of bass power taking the fewest possible space.
eBay
Nobsound M5.1 Digital Bluetooth Receiver 5.1 Channel Coaxial/Optical Home Theater Power Amp U-disk Subwoofer Amplifier
Aliexpress UK
In Phase Car Audio USW300 - 300W Underseat Compact Subwoofer. 300W Underseat Compact Subwoofer - In Phase Car Audio USW300. 300w Max Power. Many people think about changing speakers in you car, my advice is just add the USW 300 and you will think you have new life in your car!
eBay
AIYIMA Audio B01 Bluetooth TPA3116D2 Subwoofer Amplifier 100W HiFi Stereo Digital 2.1 Class D Amp Bass Treble For Home Theater
Aliexpress UK
One year warranty! Other Policies.
eBay
Car Subwoofer Amplifier Board, 500W Subwoofer High Power Hifi Bass Amplifier Board DC 12V
Aliexpress UK
Max Power: 7800W. Four-Channel Design: This amplifier supports up to four speakers, making it ideal for comprehensive sound distribution across your vehicle, covering all frequency ranges with precision.
eBay
10 Inch Tunnel Car Audio Subwoofer Car Speaker Sound System Car Subwoofer with Amplifier Subwoofer Drive The Rhythm of The Music
Aliexpress UK