Review on AIYIMA Tube T4 HiFi Stereo Audio Power Amplifier Bluetooth 5.1 Vacuum Tube Amp - 100Wx2 Stereo Receiver APTX-HD for Home Theater System + DC 32V Power Adapter (Black- T4) by Tracy Knight

Bought this to clear the blockages around my bed. See I had a stereo receiver, a CD player, speakers and a bluetooth receiver connected to my amp. Terribly crowded. However, I watch TV a lot and I like listening to it through the speakers on the bed. Block T4 works very well. No latency issues and it works well with my HK SAT_TS7 speakers. So the Bluetooth fits perfectly with the '-LG B9 55 inch.km TV. The amplifier control works very smoothly. No problem. I didn't notice any unusual humming or creaking in the speakers. The amplifier inputs work well with a radio tuner. The only thing I did to the amp was a couple of Western Electric 403B tubes. I've never installed stock 6J1 pipes before. AC for build quality. If the innards hold up, I think the T4 will last a long time. Only gave 4 stars because I don't know how long this amp will last. I hope in time.