Soundavo
Soundavo NSA-250 Multiroom Music Streamer Amplifier 2 x 50W | Airplay, DLNA, WiFi & Bluetooth | 24bit 192 kHz Hi-Fi Audio Integrated 2.1 Channel Amp for Home Speakers
WiiM
WiiM Amp: Multiroom Streaming Amplifier with AirPlay 2, Chromecast, HDMI & Voice Control | Stream Spotify, Amazon Music, Tidal & More | Remote Included | Space Gray
Arylic
WiFi & Bluetooth 5.0 Mini Stereo Amplifier Board, Bluetooth Amplifier and Airplay Amplifier 2.0 for Home Audio, Multiroom Digital Audio Speaker Amp-Arylic A30+