Review on Premium Desktop Audio Amplifier - HiFi Bluetooth 5.0, Class D, 300W+300W Stereo Power Amp by Bennie Wilks

I bought two of these amps to power Apogee Duetta (a pair of planar speakers with a 4 ohm resistance). These 300+300W amps cannot drive 4 ohm speakers at medium volume. There are no low frequencies and sounds are easily distorted. I am currently using Dayton APA150 150W power amps. They work great with the Apogee Duetta and produce ample sound levels. I wanted to reduce power consumption by using highly efficient digital amplifiers as I use my sound system for a long time every day. I'm giving two stars because Revain hides a one star rating.