Ijust got my Kenwood KAC-X401M

 Ijust got my KAC-X401M and need suggestions on what  type of 8's would handle the power. I've  got 2 boxes for four 8's mounted in the trunk of my Focus.I wuould also like to know If yall suggest an alternator and battery upgrade. I know i need thicker gauge wire like 4 AWG.

if you want to all 4 I would go with 4 4 ohm dvc wire them in each sub in series so each sub is showing 8 ohms, now wire you subs to each other in parallel this will give you a 2 ohm load at around 1200 watts from your amp. I would go with either alpine type r,rockford fosgate either p3 or power stage 1. What kind of boxes do you have ( sealed or ported) what are the specs of your boxes (cubic feet) what is your budget. what kind of music do you loisten to . do you want spl or sq.