Review on High-powered Bluetooth Amplifier Board with Treble and Bass Control - 100W+100W, DC 9-24V, BT and AUX Inputs, DIY Stereo AMP Board for Wireless Speakers by Ryan Fuhrer

I love this amp! I used this board to build a Bluetooth HiFi stereo system for use in my garden in the summer. This is an amazingly great sounding system. To build it I used this 24V board. 9 ampere switching power supply, two Pyle 6 x 9 loudspeakers with a wide frequency range up to 50 Hz with midrange and tweeter loudspeakers and a super tweeter. The Bluetooth connection is flawless. In the absence of a signal at full volume (carefully), there's absolutely no hum or click. The sound quality is crystal clear even at 1/3 volume. At 1/2 power it screams and is still very clean. At full volume I find it simply stunning. I built the system out of 1/2" MDF, sealed left and right speaker boxes, and a cavity in the center for the electronics. Aux on the back along with a 12-foot power cord. The amp barely gets hot when running. For about $140 I've built a system that beats anything I've figured out so far. I look forward to good tunes when summer comes again. "This isn't a downside to the amp board. I just want the Pyle speakers to produce more bass at low frequencies. You can hear it but not feel it. I'm currently considering how to add a subwoofer to my standalone system to give it the boost it needs!