Hey there new audio person! Lots of reasons for hum/radio signal (poorly shielded interconnects, ground loop, poorly buffered preamp, etc.). The key words here (in your note) are: "All new". Know what this means? It means you can go to your friendly dealer" with this and get free help! Cool huh? Good Luck!
new to this,need help
i have a parasound preamp,proton tuner,cd and proton amp stacked on top of each other in that order. (preamp on bottom) all new. the first problem i had was a very low hum in the system. i tried another outlet and this went away. now for the second problem, i first turn on the preamp, then the amp.no problems or sounds. when i then turn on the tuner, even though i have cd selected on the preamp, i can hear very faint radio signals coming through the speakers. what's going on? i also get a very low hum when i turn on the cd, but i assume this is because i have a cheap cd, am i on the right track. also could someone suggest an acceptable cd player. thanks very much.