alright.. thats all sound ok...
i agree that pyle arn't the best amps by a fair way... if u want to power subs then a class D mono amp is best, there more efficient than normal ones so louder for the watts and as well sound better..
www.caraudiocentre.co.uk is a good place to start... i reccomend the legacy 3090, its £250 and is pretty sweet, thats what i'm using.. better than Vibe which they also sell but they tend to get hot to quickly.
the headunit....
think of it like this.
the pre outs mean before (pre) amplification so its a line level output which is where the volts come in as it is measured in volts not watts. the watts are the on board amp and it will be 50watts max and 25 rms which is not adequate for any decent sound quality or volume.
so if your headunit said it was a 4V output then thats what will come out of the pre outs, and sub out as well.
hope this helps and that you get it all sorted soon.. also 6x9's weve been discussing that in the ice bible... it steels the air from the sub or the sub steels the air from the6x9's.. so neither works at full potential.... better off putting componants in both doors and getting some dynamat.... i've just got a 306 with that in the boot.. can't wait to hear the differnce...
it's only £15 for a door kit of dynamat....
sombody offer me a job in car audio!
josh
josh