Review on Bluetooth 5.0 Stereo Audio Amplifier with 192KHz DAC: Digital to Analog Audio Converter for Home Passive Speakers - Optical/Coaxial/AUX Input, 2 Channel Class D Mini Hi-Fi Integrated Amp, 60W Immersive Sound Experience by Kevin Mckechnie

SETUP Set up was easy. I connected the speaker wires (with banana clips) to the terminals, plugged in and powered on, selected BT for bluetooth and connected (named AY_BT) on my phone. He connected almost immediately. IN USE The unit sounded out of phase right out of the box. I did a phase test (YouTube video) to confirm, then swapped the wires on one speaker and everything was focused making it appear my device was hooked up out of phase. I'm using it in a small bluetooth system with two small bookshelf speakers and it works well in these conditions. There are no audio dropouts. I also use the AUX input and it works as expected. The sound is the same as other IC amps I own: low noise, full range, high fidelity. PREPARATION AND FINISHING The volume control rubs against the front panel at low volume settings. There is a slight noise when turning the volume knob (this is not an issue I've had with other chip amps I own). It was also connected out of phase (see above). The input selector feels good though, and otherwise the unit looks and feels quite good. If I encounter any more issues with the device I will update this review by posting a comment in the comments section. Here are the pros and cons of this amp. You can decide which (if any) are important to you: PROS1. Sounds good.2. Accommodates multiple inputs: Bluetooth, AUX, USB, etc. CONS1. The chip model is not specified (other chip amplifiers indicate which chip they use); no way to check specs.2. Build quality is just OK.3. The only indication that Bluetooth is connected is the initial beep; the light does not change state (color changing, blinking or steady).