Amazon.com: MRV-F300 - Alpine 4-Channel 300W RMS V Power Series Amplifier : Electronics
Amazon.com: Kaynell 298A Wireless Bluetooth 5.0 Stereo Audio Amplifier, RMS 40Wx2, Max 300Wx2 Dual Channel Power Amp Sound Receiver w/USB, SD Card, FM Radio Home Speakers Theater System Remote Controller, Black :