Sonance C4630 6-Zone / 4-Source Multi-Channel Audio Distribution Amplifier

Donner MAMP5 600W Audio Power Amplifier Receiver 4 Channel

Pyle Wireless Bluetooth Amplifier-300W 4 Channel MP3 USB SD Home Theater Stereo

Audio Access PX-612 6 Zone Power Amplifier With Power Cable Tested

Savant AMP-8040-00 8 Channel Multi-Room Digital Audio Power Amplifier

Control4 8-Zone Multi-Room Matrix Amplifier C4-16AMP3-B, 120W @ 8Ω Per Channel

Pyle PTA44BT 4-Channel 500W Bluetooth Home Audio Amplifier - Black

RCA Proformer 4 Channel Home Theater Amplifier PA-4500M