I finally realized by testing my old cable bought at 10 € and the performer 500, how a cable can distort the sound. It makes a lot of momentum, and balance. Quality is at the appointment, I am not an expert on cable but I strongly recommend it. Result I'll buy one XLR / XLR, and an acoustic guitar. (It will have to wait a bit more as ...)
Your registration will be greatly improved.

My advice: Check your cables and switch to 10 € € 24 more! AC is really worth