So I'm preparing to start my install over New Year's weekend. I already have my basic settings ready to upload into my DSP/Amp. I'm reading and watching everything I can about Helix DSPs but there's not much specific to the M FOUR. I see some indications that some Helix DSPs have built in distortion/clipping detection but not sure about mine, the manual isn't affirmative either way that I can tell. Since I already know my HU's max unclipped volume, will I still need an O-scope to set input sensitivity & levels or will the M FOUR help me with that? I can get one if needed. Sadly, my ex wife decided I no longer needed my old Tektronix and I don't have much other reason to buy one these days. Please advise & thanks in advance.