ok im about to buy one of these.. is 285 a good price?? is a good unit?? also.. it only has 2 pre-outs.. Front and rear.. how would I go about hooking up a 4 channel amp as well as an amp for subs?? like I know i could hook the the 4 channel up with a 4 channel 4rca cable and get a y adapter to bring each pair of two down to 1 and plug them into the front.. the sub amp into the rear but would i be able to fade F-R or not.. should i do it like that or no?