What can you tell me about wire size

[audiobaun 5,000+ posts]

I keep forgetting this is a 5 ch. 4 ch at the 2.3 ohm load is fine, and if that sub box final load is at 2 ohm then you are fine.Just got to lower gains down and not crank everything up on the HU, Like LOUD(I never use) (BASS BOOST) I never use. 120HTZ or Through for basic setting i use on Mids and highs and approx 1/2 gain or turn up to where Ill be playing majority till I hear speakers disrtort and turn gain down a 1/4 till no longer noticable, been working for me just fine for over 20 years.That Amp will shut down if it gets too hot(Supposed to go into protect)Safe mode.

 

[audiobaun 5,000+ posts]

But if you want it to run cooler(Amp) I suggest you get an amplifier for sub duty alone and run that 5 ch. on your mids and highs since you have it utilize it. All 5 and 6 and 3, and even quite a few 4 ch bridged at a lower ohm load run warm to hot when used as a multi amp application for sub duty along with front stage/and rear stage at the lower ohm load. Being driven hard..