This little guy churns out 100 watts of audio from each of its four channels into 2 ohms (14.4V, 1% THD) and is fully bridgeable, so it can be used as a 3-channel amplifier, or as a 2-channel amplifier producing a whopping 200W x 2 into 4 ohms.
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Mini Audio HiFi Bluetooth 5.0 Power Class D Amplifier 2.0 Channel Tpa3116 Digital Amp 50W*2 Home Car Marine Audio USB/AUX IN
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.
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Douk Audio NS-14G HiFi 2.1 Channel Bluetooth TPA3116 Digital Amplifier Stereo Receiver Desktop Audio Subwoofer Amp
Aliexpress UK
Quick thermal dispersion technology aluminum heat sink. Variable high-pass filter: 40 - 400 Hz. Variable low-pass filter: 40 - 400 Hz. 4 ohm: 250 watts x 4 channel. 2 ohm: 500 watts x 2 channel. Bridged: 1000 watts x 2 channel @ 4 ohm.
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Fosi Audio Bluetooth Sound Power Amplifier 2.1 Channel Amp Audio Reciver for Speaker Subwoofer 165Wx2 +350W BT30D PRO
Aliexpress UK
Mini PAM8403 Digital Audio Amplifier Board 4 Channels 3W 4 DC 5V Stereo Sound AMP XH-A156 with Cable For Speaker. This amplifier board is a versatile and powerful audio module that can be used for a wide range of applications.
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2025 Zeming D4100 4 Channel Full Range Class D Rms 4*100W Car Amplifier for Car Audio Speaker System
Aliexpress UK
(Notice: The product needs to be connected to passive speakers to play audio. When there is no speaker connected, there will be a certain amount of wind noise, which is normal.). Bluetooth 5.0 】The professional integrated indoor stereo receiver is equipped with the new updated 5.0 bluetooth.
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ST-838 HiFi 2.1 Channel Power Amplifier Bass and Treble Adjustment 80W*2 Stereo Bass Sound Amp Audio Amplifier Mini Media Player
Aliexpress UK
Features: -It features four channels that can connect multiple speakers, providing powerful output for a fully immersive audio experience. -With Bluetooth connectivity, you can stream music from your phone, tablet or other Bluetooth-enabled device. In addition, you can also insert an SD card to play music stored on the card. -With FM radio function, you can listen to your favorite radio stations. USB function allows you to connect a USB device to play the music stored on it. -With volume control, bass and treble adjustment, it can enhance your listening experience and provide you with multiple options to enjoy your favorite music. -With colorful lights, it can bring dynamic audio-visual effects and add a pleasant atmosphere. .
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Audio Amplifier Sound Amplifier 25W*2 + 40W 2.1 Channel bluetooth 5.0 Stereo Power Amplifier Portable Car Home Theater ST-839
Aliexpress UK
1xQS1200.4 2 Ohm 4 Channel Amp Car Audio 4 x 310 Watts RMS at 2 Ohm. 4 Channel car audio amplifier stable at 2 Ohm gives you the benefit of wiring multiple speakers and dividing the power per channel.
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ZK-MT21 Subwoofer Digital Power Amplifier Board 2x50W+100W 2.1 Channel Audio Stereo Amp Module Bass Amp for Home Theater Speaker
Aliexpress UK
Product Description: More Volume? Better Sound Quality? Is this what you want? But scared to upgrade? VIBE have produced a market leading Plug and Play Amplifier to suit your BMW. This amplifier comes with everything you need to upgrade your sound without changing your factory stereo. The POWERBOX65.4M is the most powerful Micro amplifier on the market offering a massive 65 watts per channel compared to the competition at around 35 watts! This big power means you can get louder and cleaner sound from your existing speakers or upgrade to a more powerful speaker in the future. The amplifier has automatic turn on and off functions as it automatically detects when the vehicle is on and off, it also has some great feature to help integrate other audio into a system such as a remote .
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SenMicre DN218 Professional Digital Power Amplifier 2 Channel DJ Subwoofer Amplifier 2X1800W 8ohm Audio Line Array Speaker AMP
Aliexpress UK