Elan HD Series Multi Zone Amplifier 12 Channel RCA Inputs Black HDC2000/HDC2100

Monoprice 6 Zone Home Audio Multizone Controller and Amplifier Kit

Monoprice 10761 6-Zone Home Audio Multizone Controller Amplifier Kit Open Box

Monoprice 6 Zone Home Audio Multizone Controller and Amplifier Kit

Monolith M2100X 2x90Watts Per Channel Multi-Channel Home Theater Power Amplifier

EverSolo Play Streaming Amplifier - Black (Open Box)

8-Channel Home Theater Power Amplifier, 175W/Ch RMS, Multi-Zone, Bridgeable