25W Hybrid Tube Amplifier Stereo Audio Amp Subwoofer Bluetooth Optical Coax USB | eBay
PrimaLuna EVO 400 Integrated Tube Amplifier | ListenUp
Dayton Audio HTA20BT Hybrid Stereo Tube Amplifier with Bluetooth 4.2 USB Aux Inputs Headphone Sub Out - Walmart.com
Amazon.com: Dayton Audio HTA100 Integrated Stereo Hybrid Hi-Fi Vacuum Tube Class A/B Amplifier 100 Watts RMS with Subwoofer Output, Headphone Output, Bluetooth 5.0, with Record Player Phono Preamp and USB DAC :