i have an old peavey classic 50w tube guitar amp. if i were to plug my bass pod xt into it would it be best to go into the pre-amp in? there is no effects loop on the amp. since i wasn't sure yesterday i just plugged it into one of the regular inputs and as you'd expect it didn't sound that great. i know that isn't the way to do it but i didn't want to harm anything. thanks!