If i have a amp a 300 watt one can i run the front speakers and my type r off it or will it underpower it and mess the sub up or MESS ANYTHING ELSE UP??
If it will do tri mode you can do it but you will need passive crossovers to filter the signals. It may be under powered but that isn't going to damage the speakers.
it can dmaage the subs if it starts sending bad power cause its over workin, but 300w isnt even the rms for a type r, so yo uwill deff nee danother amp to powe rthat sub.