Review on 🔊 Powerful 100W S800 Bluetooth Audio Amplifier with 12V Power Supply - High-Quality Dual Channels HIFI Stereo Receiver with Bass Amp and Built-in EMI Filter by Dave Willis

Power consumption of the amplifier from 9 to 24 volts. The supplied power adapter has a nominal voltage of 12 volts, 5 amps. This limits the power output of the amplifier to less than 25 watts per channel. In fact, I suspect it's closer to 15W RMS. The amp control features work well, as does Bluetooth and aux inputs. The amp stopped working after 31 days and the seller offered a 50% discount off the purchase price. The power supply is 19 V (4.3 A), and now the amplifier works at full volume without distortion. The sound level is very good when using speakers with an efficiency of 90 dB at 1 W or higher.