Review on Pyle Home Mini Audio Amplifier - 60W Portable Dual Channel Surround Sound HiFi Stereo Receiver with 12V AC Adapter, AUX, MIC IN - Supports Smartphones, iPhones, iPods, MP3 Players - Ideal for 2-8ohm Speakers - Pyle PFA200 by Laura Walters

This is a good little amplifier with 8 to 10 watts RMS power per channel. Everyone rates their amps PMPO. There is no direct or mathematical formula to calculate the RMS power of PMPO rated amplifiers, but if you look at the efficiency corrected power consumption it is probably very close. If you see another company with a USB powered computer soundbar and they claim it's 10W RMS, that's false advertising. This amp has very low audio gain and is very flexible with multi-level inputs. Sound shaping its descent with a bypass switch.