ZK-1002T Bluetooth 5.0 Amplifier Board 2.1 200W HiFi Subwoofer Audio AMP with Treble and Bass Control BT and AUX Inputs, DC 9-24V 2.0 Channel Stereo AMP Module for DIY Speakers, Password Free

Very good product exceeded all expectations

Very nice product 👍👍

I made a simple sound system in the garage. I don't care for blasting volume, but I do care for sound clarity. I have an 8in android tablet connected through aux cable to this amp, and to 2 stereo 4in shelf speakers. Impeccable functionality and sound clarity. I found in a drawer an 18v 2A adapter with a 5.5x2.1mm jack (the most common) and it works great. It's very small but rugged. I mounted it discreetly under the work bench so that I have access. Important: it's not specified anywhere, but I noticed accidentally that the volume button has a press function. Long press (3s or so) turns it off for me and I need long press to turn it back on. I haven't tried bluetooth because I prefer the aux connection with less interference.

Works great some distortion when maxed out but that could be speakers or the fact I'm running it at 18v

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