So I am getting interested in building a sub. I have a PSW-505 and it is good enough but I would like to get more at some point. I know there is a lot of work that goes into building a quality speaker but for now i am trying to figure out the best amp for a project. my confusion is watts vs. price and what has the watts in these different amps really is. I relise watts are a mesure ment but still subjective to some point based on how they are measured by the compony. so My psw-505 price (189 dollars ) is a 475w peak 300w RMS i cant figure out how manny ohms that is measured at is it 4 or 8. the plate amps I see on parts express are rated at 300-500w RMS at 4 ohms priced 170-240$ . if the PSW-505 is at 4 ohms then the plate amps are way better deal if it is at 8 ohms would it be more cost effective to get cannibalise my PSW vs buying a plate amp.
A Pro amp would be great but I am not sure how there watts are measured is the Behringer NU1000 1000w at 4 oms bridged RMS or peak. I like this option but dont know how big to go and what the cost effectiveness is. If the pro amp is RMS it takes the cake. so i am just a bit confused and how crappy is something like Pyle-Pro PQA3100.
also 12" vs 15" drivers and decent wattage to push them.