Vox has just put out Class A cables: http://www.voxamps.com/classa Do these require plug replacement more often than Class AB cables? Also, they come in Guitar, Bass and Acoustic model, which are black, blue and brown resp. (click on the "specs" tab) If I use the bass cable on guitar, will it provide that extra "oomph" needed for thick beefy tonez? Would it be an error to use the Acoustic model for metal because it'll wimp out the signal? Is there a demo of this? Would it be better to try out in person because youtube sound quality is not so good?