Pioneer GM-6704 - 4 Channel Bridgeable Bass Boost

WiiM Amp Pro - 60 Watts/channel at 8 ohms;120 Watts/channel at 4 ohms

Lab.Gruppen E10:4 - Class D 4 channels 1000 Watt

AKG HP4E - 4-channel

SMSL A50Pro - 2.1 Channel 100W

SMSL A12 - Class D 2 Channel 80Wx2

Donner MAMP5 - 4 Channel 440W

Alpine R2-A60F - 4-Channel 150W x 4

DSPPA DM858 - 4 channels 80 W

Herdio 4-Channel Amplifier - 200W

Focal 4380 - Class A/B 4 Channel