How do I adjust the balance on a JL Audio 300/4 amp? I know I am supposed to play with the input sensitivity but how do I know how much and which way to put it?

Also I get a bit of hissing at higher volumes. Should I increase the volume at the HU and lower the gain at the amp?

Thanks.

Jason

 

Use the 9-step procedure in the J/L 300/4 manual. It involves setting up a voltmeter to your outputs and referring to a set voltage level listed in the manual and based on spkr impedance and output wattage.