Unique output design and independent control: 4.0 channel can be divided into two groups of 2.0 channel outputs, and the volume of each group can be adjusted separately. And specailly design a low frequency output to connect active subwoofer, very convenient to build 2.0/2.1/4.0/4.1 channel system. Rated 45W × 4 output power: supporst speakers with 4-8 ohm impedance, easily to drive most home & car & boat speakers, can give your entertainment system a boost, with unrivaled sound superiority and lets you enjoy high quality amplified audio. Multiple audio inputs: besides Bluetooth 5.0/stereo RCA/3.5mm AUX inputs, which can be compatible with ipad, cellphone, MP3 player, CD player, dataplay, computer, decoder, etc. Also with USB(U-disk)/SD Card/MMC Card inputs, easily to enjoy high-quality lo.
eBay
AIYIMA B07 TPA3255 Home Amplifier Bluetooth 2.1 Channel Power 300Wx2 +300W For Audio Speaker Passive Active Subwoofer AUX RCA
Aliexpress UK
If you have a bluetooth device on your smart phone or laptop, you can send the music to the amplifier without any cables or wires. Type of power amplifier: AV power amplifier. Support:USB Disk/Max 64GB SD Card(Not included).
eBay
2 pcs/lot 2.5 Inch Audio 4 ohm 3W Magnetic Speakers Subwoofer 63mm Round Bass Loudspeaker DIY Home Amplifier Bluetooth Woofer
Aliexpress UK
If you have a bluetooth device on your smart phone or laptop, you can send the music to the amplifier without any cables or wires. Type of power amplifier: AV power amplifier. Support:USB Disk/Max 64GB SD Card(Not included).
eBay
7.1 Channel Home Amplifier Professional Singing Wireless Bluetooth HiFi Audio Stereo Karaoke With Spectrum Display
Aliexpress UK
If you have a bluetooth device on your smart phone or laptop, you can send the music to the amplifier without any cables or wires. Type of power amplifier: AV power amplifier. 1 x Audio Power Amplifier.
eBay
7.1 channel home amplifier professional singing wireless Bluetooth HiFi audio stereo karaoke with spectrum display
Aliexpress UK
Multiple Inputs & Versatile Use: This amplifier supports Bluetooth, AUX and USB inputs, making it compatible with a variety of external devices such as CD/DVD players, TVs, computers, tablets, phones and MP3 players.
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Neoteck Portable 3.5mm Headphone Amplifier with Bluetooth 5.1 Receiver Bass Boost Switch 16-300 Ohm HiFi Earphone Amp for MP3 CD
Aliexpress UK
Amplifier type: hifi power amplifier. --Power amplifier type: hifi amplifier. -Mini HIFI digital bluetooth audio power amplifier. -for SD Card, U disk, AUX input, MP3 format play, support bluetooth wireless connection.
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BT-298A Home Digital Amplifiers Audio Display 300W+300W Digital HIFI Audio Stereo Power Amplifier 2 Channel Digital Amplifiers
Aliexpress UK
If you have a bluetooth device on your smart phone or laptop, you can send the music to the amplifier without any cables or wires. Type of power amplifier: AV power amplifier. Support:USB Disk/Max 64GB SD Card(Not included).
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Douk Audio Mini Digital Amplifier COAX / OPT Integrated Bluetooth 5.0 Amp Home/Car/Marine Audio Amp USB Player 24B/192K
Aliexpress UK
The Powerline A100B from Power Dynamics is an in wall Bluetooth amplifier, offering user-friendly functionality with several playback options. The in-wall design of the A100B ensures a discreet look once installed, blending in nicely with any room of your home. This in wall speaker amplifier has 4 speaker output terminals that allow you to connect four individual speakers to it for audio playback. There are two left outputs and two right outputs, meaning that stereo audio is achieved once suitable passive speakers are connected. This wall mounted Bluetooth amplifier features 5.0 Bluetooth technology, allowing you to pair a smart device and stream audio wirelessly. The updated 5.
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HIFIMAN EF600 Bluetooth DAC/Amplifier/Headphone Stand with HYMALAYA Pro R2R DAC
Aliexpress UK