Of course you can ask that. I can tell by the equipment you're running you know much more than I do. I'm running a Kenwood hu. Max volume 35 normal listening is 16-20. System is tuned to Max out somewhere between 25-27 depending on the song. Bass boost is off, EQ is set at +1 on the low band followed by +2 +3 0 and -1 or something very close to that. I do run sub control via the headunit. Usually no more than +9 out of 15. My source is my phone, which I play at 12 out of 15. I play a decent amount of decaf on unaltered quality files. I actually run a four channel as well so the internal amp on fhe head unit is turned off. All six channels are connected to their respective amps. The pre-outs are 4V. My hpf is set at 70hz and my lpf is set at 120 or 150hz. That's to try and combat my midbass drop out. The gain on the RF amp is approximately 3/4 of the way up, subsonic filter is on (15hz) and the punch EQ for bass boost is set at zero. RF amp is running open; no lpf or hpf. I leave that up to the head unit.
Lot of information I'm sorry, I just figured you could better help me that way and not have to ask 400 questions.