Amazon.com: Orion Cobalt 2 channel amplifier – Class A/B Dual channel Amplifier 750W RMS 1500W Max, Car Electronics Car Audio Subwoofer 2 Ohm Stable Bass Boost MOSFET Full Range Amplifier for Car
Amazon.com: Facmogu S-288 4 CH Bluetooth 5.0 Home Audio Amplifier, RMS 40Wx4, Max 600W HiFi Stereo Power Amplifier USB, SD, FM Class D Speaker Amp for Home Theater Karaoke, with Power Adapter