Amazon.com: 4 Multi-Zone Stereo Amplifier - 19” Rack Mount & Rack Mount Studio Pre-Amplifier - Audio Receiver System w/Digital LCD Display Bluetooth FM Radio Recording Mode Remote Control USB Flash : Everything
Amazon.com: AMP99 WiFi & Bluetooth 5.0 2x50w Multi-Room Amplifier w/Bass &Treble Control : Electronics
Fosi Audio T10 Multi-Room Audio Streamer Amplifier 100W + 100W | Supports Airplay DLNA WiFi & Bluetooth Hi-Fi Audio Streaming Integrated 2.1 Channel Amp for Home Speakers - Walmart.com
STCA360-6Z | 360W 6-Zone 70V/100V Commercial Bluetooth Power Amplifier – Sound Town Inc
Amazon.com: 4 Multi-Zone Stereo Amplifier - 19” Rack Mount & Rack Mount Studio Pre-Amplifier - Audio Receiver System w/Digital LCD Display Bluetooth FM Radio Recording Mode Remote Control USB Flash : Everything