Hi there, fairly new to HT Got a yamaha rx430 receiver with Yamaha NSP 230 speaker package with active 50w sub. Speakers came complete with speaker wires. Would like to know if i should replace these wires, and if there will be any improvement in my sound. Any suggestions as to what wire to use. The speakers have these spring loaded clips so i imagine the size cable that i can use is limited. The sub is connected to the receiver lfe connector via a single rca cable, fairly thin. Should i replace this as well?