Review on 🎧 HiFi Mini Vacuum Tube Preamp with Bluetooth 5.0, USB Player, Stereo Audio, and Headphone Amplifier by Kayla Guzman

Bluetooth connects easily. The signal to noise ratio was excellent. The sound quality was very good but kept cutting out when people were talking, I couldn't tell from the music but it was likely. I have the AIYIMA Tube T9 version and I have the same problems as this one. My biggest issue with both is using the RCA inputs, if the left input is not connected the audio on the right will cut out. I spent hours of my time trying to figure this out on AIYIMA thinking it was a soldering issue or something. Then I bought this module and found that it suffers from the same shortcomings. I cannot recommend this preamp. I chose FX Audio T03 and AIYIMA A3 and they both work great. I thought they were both the same but they are not. I plan to review both later.