I have done this with a tuner with output control with no problem. Just give it a try you have nothing to lose.
Nakamichi deck directly into power amplifier
Hi. I use my Nakamichi 682ZX as a main source. It has an output level control, so I was thinking of why not replace my Audiolab 8000LX integrated with better power amp and skip the preamp? Anyone tried this? Would I lose anything, some weight in the presentation perhaps?