Review on Dayton Audio HTA20BT Hybrid Stereo Tube Amplifier: Bluetooth 4.2, USB Aux in, Headphone & Sub Out by Anna Wash

But for some reason it distorts any music that reaches it at a low level, like a piano or just a human voice. If there's no question, this thing is a beast. The sound quality is amazing! So after trying two devices with the same defect and calling support with no good ideas, I'm returning the devices. When testing the second device, I found that the issue only occurs when two speakers are connected. This doesn't happen when I only have one plugged in or using headphones. My speakers are old Kilpsch KG 4.2 with new crossovers and tweeters. I'm sorry I left this. The Rockville BluTube works fine with my speakers, but not as well as this one.