hi, my not-so-efficient calculations rendered me about 18" short of speaker wire, and i am not about to do it all over again (long story, but wiring AFTER i planned and measured behind walls, through floors, etc). i know that it may not even be noticeable, but what are the consequences of using butt-connectors to extend some speaker wire? im just wiring up some energy tower speakers i just bought. are there any statistical measurements? just curious. thanks.