Hi guys. I wonder if you can help me. I have a pair of subs which are rated 650w RMS @ 8 ohms. I have an amp which is 450w @ 8ohm and 650w @ 4 ohm. Is there some way I can lower the resistance of the subs to get them to be a 4 ohm load? Is it just a case of wiring an 8 ohm resister in parallel with each sub? Help will be really appreciated. :)