Bought a second one, same problem. works for a weak, and then the left channel dies, as soon as I plug in a different (cheaper) preamp, both channels start working again

The left channel also sounded a little weaker than the right channel & it was very very annoying.

Overall, right and left channel sound balanced, audio clarity has improved, channel separate is noticeable and build quality is surprisingly good

It was crazy easy to set up (plug and play pretty much) and it immediately corrected audio issues as well as gave me the power of sound that having a turntable requires.