Ok, here is the situation: I have a Hartke 3500 head. It is rated at 350W into a 4 ohm load (which is how I usually run it). Anyway, I have a situation coming up where I would like to basically use the 3500 as a power amp, bypassing all the gain, compression, and EQ. My question is: If I patch a line-level signal (mixer, bass effects unit, etc.) into the effects return jack on my 3500 amp and set the effects balance all the way to return, will that effectively let me use the 3500 as a 350W/4ohm power amp? Thanks!