ZK-1002T RPO 2.0 Channel Bluetooth 5.0 Amplifier Board 200W HiFi Subwoofer Audio AMP with Treble and Bass, BT USB and AUX Inputs, DC 12-24V 2.0 Channel Stereo AMP Module for DIY Speakers

I have a little project going on with this amp and its performance is amazing! The sound quality and volume can be tuned in the board or remotely through an app. I use a 24v power supply (not included) to get the best sounds quality and prevent over heating but I will still add a 40-40-10 fan to its heat sink. I used it on Bluetooth only but it does have an AUX as well. Well built product with labeling and easy to put together.

Excellent Little Amp for DIY Bluetooth Projects I used the ZK-1002T Bluetooth amp in a custom portable speaker box powered by an 18V battery, and it absolutely delivered. For such a compact unit, it puts out plenty of clean power—more than enough to drive my 6.5” marine speakers with solid volume and clarity. Bluetooth pairing is quick and reliable, and the sound quality is surprisingly good, especially for the price. I also like that it supports both Bluetooth and aux input. The compact size made it easy to mount inside the case without overheating or needing extra ventilation. Just be aware that there are no instructions included, so if you’re new to wiring or amps, you may need to reference some diagrams online. But for DIYers who know their way around a project, this amp is a solid choice. Highly recommend for anyone building a battery-powered sound system or portable speaker setup.

This little amp is incredible. Easy connection to my phone. It powers 2 6x9 speakers in a vintage truck. Can't believe how good it sounds for such a small budget option. Doesn't even get warm when it's cranking.

Works great for a custom speaker system that I built for work. Provides plenty of power to my two 4" pioneer speakers using a Milwaukee 18v battery. Connecting to Bluetooth was easy and wiring was very simple and straightforward. Can't wait to build more custom speaker boxes with these.

I bought this to use in my 30's Chevy Street rod. I wanted a way to have Bluetooth music but not have an ugly head unit that didn't go with the rest of the interior. The set up was simple and I had it ready to use in in minutes. The individual volume, bass, and treble is a nice feature. My phone easily connected without issue and seems like it would be compatible any Bluetooth transmitting device. For $20 I'd say it's any easy choice! My only complaint is that there was no documentation about what the Bluetooth name would be to connect to.

I've been using it for 5 days so far, and it works great. • The residual assembly was very easy (anyone with adequate fine motor skills should be able to do it). • I'm using my old laptop charger (19V, 130W), and it delivers more than enough power for my 4 Ohm speakers. • The sound is crystal clear, and I didn't notice any distortion coming from the amplifier itself. • Bluetooth (the main reason why I bought it). works without any issues. NOTE: the unit does not have an ON/OFF switch, so it always stays on. I will be installing a simple inline switch later to be able to turn it off when I don't need it. Overall, it's an awesome find for the price 👍

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.

I used a 12v lipo battery for the power supply, and it worked great. Nice and compact for its power and what it does. It gets loud!! Very easily the best value out there for DIY speaker amps. No remote control. Bluetooth connection seems good.

Very good product exceeded all expectations

Very nice product 👍👍

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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Good sound quality