Just out of interest, i am using the rubies box as well and although it just passes it is not deep enough to sound like vader, so i have a couple of questions.
If i get vader breathing on CD, then get a portable CD player, i assume i have to buy a mini speaker to fit in the helmet then have the breathing on a loop then have the CD palyer on my belt somewhere? Any one any idea how long batteries last?
Also, is there anything other than hyperdyne (and that crappy hasbro) that can make my voice sound electrical (i actually do a good impression of vader but i just need that slight electrical sound to make it sound that bit better). I did buy a voice changer (cheap) which just amplified my voice but it feedsback too much
Also, Hyperdyne, with your setup, can the speaker for the vader voice go in the helmet or does it have to go on the belt in a pouch somewhere?
Thanks