Although I do enjoy listening to my old LPs, I also like the portability, playlist feature and spontaneity of my mp3 player - and the ability to hook a friend's (or my son's) player to my system. I've noticed, however, that plugging the player directly into the aux input of my old Fisher receiver requires me crank up the volume much higher than when I'm playing a CD or LP - which led me to think of how I could boost the gain. Then I saw Art Dudley's column on transformers, and I wondered, if transformers can step up the gain of a phono cartridge, could one be used to increase the signal from an mp3 player before the aux input of an amp? Or is there a better way?
Assuming you've set the output volume of your MP3 player to at or near its max level, what problem do you have by increasing the volume level on your receiver? Is it clipping?
It's more of a concern with forgetting to turn down the volume before switching sources - the volume level is so high that if I switch to the tuner, the sound level would likely damage my speakers. I really haven't detected any clipping, but I'll check that out.