Just bought my first, brand new, amplifier today (all my amplifiers were always second-hand). The ZED Audio Leviathan III. I have one question I need to find out about it. There is a little orange light inside that lights up when I raise the volume up on my deck (Pioneer 80PRS). The letters "VDRV" is written next to the light. I tried looking around online to understand what it is, but can't find any information on it. Is it by chance to signal when the upper rail is turned on in the amplifier to produce more power? Or does it have to do with the strength of the signal coming out the deck entering the amplifier? ---> First impressions of the amplifier: The build quality of the amplifier is nothing but professional. The size of the amplifier shocked me when I first got it. It really is 'small' for its power. Then there was how well it was packaged. Came in a plain white box, so my $7000TT (Trinidad And Tobago dollars) wasn't spent on fancy graphics on a box. When I opened it, the amp was held tight inside with some kind of packaging foam (no way the amplifier could shift around). Then there is the horribly scratched up plexi glass cover. Oh wait... That's just the plastic protector on the revealing plexi glass. When you look inside this amplifier, there is PLENTY to see. It would be a shame to not show it off. Next is the feel of it. It felt heavy; made with some high quality materials. No plastic cosmetic junk to ruin its professional look. The crossover knobs felt of really high quality such that with age, it wouldn't make any 'scratchy' noises when you adjust them. I love this amplifier so much, from just the first impressions, that when I was using it to build my amplifier rack, I left it inside the plastic bag it came with. I can't wait to unleash this amplifier and hear its main focus, THE SOUND! Small issues I had: Due to the nature of my install, I am forced to mount this amplifier upside down. Anyone who has these amplifiers will know when I am going with this. That wonderful looking "ZED" lights inside the amplifier is now upside down. . (My friends now refer to 'her' as Dez). I know it's a stupid issue, and shouldn't even bother mentioning it. But the only reason it's bothering me, is because it's such a big feature on this amplifier and I had to mount it upside down. I don't blame ZED Audio, and they should not even consider this an issue. The other issue I had is again with the "ZED" light. It's seriously bright. I had it playing on my backseat in my pickup while I was driving home tonight and my entire van was bright blue. . I wish it had something to vary the intensity. Most people would like that it's this bright though. Shows that they used the best materials when they were building it.