Hi Guys, Recently i have problem with my Rega Planar 8. No Audio on Right channel. After reattaching RCA from turntable to phono preamp, everything works properly (after 2 tryouts) then next day or day after same issue. I must reattaching cables again for both channels working properly. i've tried reattached wires on cartridge, same issues. Swapping channels on preamp inputs left channel -no sound. Then swapping again everything works properly. Phono preamp issues? Issues happening after turning on. Never during listening session. Any advice guys?