Amazon.com: MUSYSIC SYS-4500 Power Amplifier – Dual Channel 4500W Peak Output Amplifier for Experts and DJ, Professional 2U Chassis Rack Mount Amp for Events & Concerts with ATR Technology (XLR & 1/4
Amazon.com: Pyle Wireless Bluetooth Power Amplifier System - 200W Dual Channel Sound Audio Stereo Receiver w/ USB, AUX, MIC IN w/ Echo, Radio - For Home Theater Entertainment via RCA, Studio Use -