Audio setup advice

[Sonic]

Yeah im talking about the amplifier -ve (ground) from both amplifiers.

[Sonic]

80 Hz tops for subs IMO

I tend to run my sub crossover either at 63 HZ with slender slope or 80 with the steepest possible on the crossover.

Cap the 4's at 125Hz and the 5 at 80 and above. If you had better rears cross at 63 Hz
tried and tested one that

I've setup, well, had more of a play with the crossover config on the HU and have it setup nicely for trance music.

The subs are set at 63hz with slender slops as recommended, and this does indeed sound best. I'm not sure if i can set the rear and fronts differently, but they cross at 63 and cap at 150hz, which has removed any front speaker vibration i was previously having.

I'll have a read of the manual to make sure its all all right, but it sounds pretty damn nice i have to say