Zendstanding HA400 - 4 Channel

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

SMSL AO300 - Class D 2.1-channel 165W x 165W

SMSL AS400 - 2.1 Channel 165Wx2

AKG HP4E - 4-channel

HiFiMAN EF400 - class AB four-channel 4.4W

Soundstream RN1.5000D Rubicon Nano - Class D 1-Channel 1000Wx1@4-ohms

KASTWAVE Mini Bluetooth Power Amplifier - 2 channels 50W+50W

SMSL A50Pro - 2.1 Channel 100W

Pyle PTAU23 - Dual Channel 2X40W

SMSL A12 - Class D 2 Channel 80Wx2