Hey guys, I just got my heritage svt and when I got it, plugged it into the wall, speakon to the 810e, let it warm up on standby for couple minutes. Then I start playing it for about 10 minutes, fault light. Dang! Flip power off, check everything, turn on in standby, let it warm up, flip off standby, loud hum for 10 seconds then fault. Uh oh. So curiosity got me, did it once more, in standby, tubes look good. Flip off standby, back left tube glows bright blue, fault. Take to "certified service center" tech looks at it. Three hours on the bench and nothing with sign waves at volume. Guy said could be cable or speaker going bad (don't remember exact words). I'm wondering if my 2 month old speakon or cabinet has a problem. I'm more inclined to think cable, cabinet works with my musicman hd130 and 1/4 inch without problem. Just wondering if there could be something I'm missing. I used the speakon with Peavey ipr 3000 no problem with same cabinet (and others). Any advice would be great, i get the amp back Thursday but would like to trouble shoot first.