Harman/Kardon HK 675 Amplifier review, test, price
XPA HC-1 High Current Monoblock Amplifier : X Series : Emotiva – Emotiva Audio Corporation
Amazon.com: Fosi Audio V1.0B 2 Channel Amplifier Stereo Audio Amp Mini Hi-Fi Class D Integrated TPA3116 Amp for Home Speakers 50W x 2 with 19V 4.74A Power Supply : Electronics