I want to buy new wire for my HT.I need ( 3 ) 5' lenghts of wire. center,left & right speakers.I will have 100watts going to each speaker.Will I need to buy wire larger than 16 ga.? I am using 16ga. wire for two surround speakers which are 15 ' away LS (100w),RS(100w) , is 16ga. wire too small ? Thank you for your time!