4 channels: The amplifier adopts a 4-channel design, with strong dynamic voice recovery for high level sound. Features: 4-channel amplifier has good heat dissipation performance and long service life.
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5.1 Channel HIFI Amplifier Subwoofer High Power Stage Home Theater Bluetooth Radio Outdoor Amplifier AU Plug Easy Install
Aliexpress UK
Upgrade your car's sound system with the CRUNCH Amplifire 100 Watts X 4 Channel Beidgeable For Subwoofer 200 Watts BASS. Featuring a bass impulse and 4 Ω impedance, these are sure to enhance your car's music experience. The CRUNCH Amplifire is also equipped with RMS power of 55W, making it a reliable choice for any car. Whether you're a music enthusiast or a casual listener, these Amplifire is a great addition to your car.
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Auto-partner ST-838 2.1CH Audio Power Amplifier, RMS 20Wx2+40W Class D Stereo Digital Audio Amp with Subwoofer Output
Aliexpress UK
Model Bluetooth Digital 600W Amplifier Board. features 5 600W Bluetooth Audio Amplifier Board. D300 600W Amplifier. features 7 mp3 amplifier board 12v subwoofer. features 1 Bluetooth 5.0 MP3 Amplifier Board.
eBay
B63B-5.1 Channel HIFI Amplifier Subwoofer High Power Stage Home Theater Bluetooth Radio Outdoor Amplifier
Aliexpress UK
Those amplifiers also have to undergo a rigid testing process that would destroy unstable amplifiers. Auto Turn On Facility - When using the High-level signal inputs, the amplifier automatically turns on once a DC offset is detected (>2.5 volts).
eBay
2*300W TPA3255 Stereo Digital Amplifier Board High Power BTL Mono 600W Audio Sound AMP Subwoofer Hifi for Speakers
Aliexpress UK
Well-Designed Subwoofer Amplifier. Powerful and Dynamic Sound. Enjoy a powerful power dynamic sound with high reproduction capabilities provided by this car amp board. Professional High Power Design.
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BOMGE Digital Professional 6400W*4 power amp 1U 4 channel audio high Power amplifier Subwoofer DJ Stage Room Karaoke
Aliexpress UK
2 kinds of audio input: support Bluetooth to achieve stable & high-speed transmission, with stereo RCA input, almost compatible with all home audio devices such as phones, tablets, computers, CD players etc.. Classic chips and 2.1 channel system: adopts TPA3116 chip, with AUX and speakers output, easy to build multi-channel system and the max output power can reach 50W*2(L/R) and 100W(subwoofer). Powerful design: with 7PCS potentiometers, support adjusting the treble/bass and main volume, subwoofer frequency and volume, even the balance of L/R channel can be adjusted according to your preferences and enjoy music. Attractive appearance: Mini size with elegant aluminum shell, black and red knobs design make it more fashionable, practical and powerful. DC 15-24V voltage, suitable for home and.
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Car Audio Modified 12V High-power 600W Single-channel Mono Class D Digital Car Power Amplifier Subwoofer Speaker
Aliexpress UK
4-Channel Bridgeable Amplifier (520W). A combination of great design and massive power, the GM-A4704 amplifier gives you total installation freedom and no distortion. This 4-channel amp allows you to drive multiple speakers and subwoofers, it’s also bridgeable to power a single sub.
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A70F Car Stereo Bass Knob Easy Install Dashboard Volumes Adjuster Remote Knob set for Amplifier & Subwoofer Control
Aliexpress UK
However, these have to be much more compact and efficient. Depending on the subwoofer installed, you can choose between a 4 or 2 Ω version, otherwise the modules are identical. With a whopping 460 W/RMS for the 4 Ω and 475 W/RMS for the 2 Ω model, even very power-hungry subs can be powered - and with an impressively high efficiency of up to 84%.
eBay
Car Underseat Slim Amplifier Subwoofer Speaker Audio Sub Bass Box 8 in 600W Auditory Feast for cars, vans, jeeps, SUVs
Aliexpress UK