JohnnyGunz

Also, I've been through numerous amps/subs and never had an issue until I put in Skar Audio subs/amp.

Haven't checked the fuse yet, good idea. I'm gonna bring it to my boys house later today or tomorrow and see what its cranking out. Both the yellow top and alternator were purchased within the past 2-4 months Because I was wondering if anybody else has had similar issues with either the SK1500.1 or the VVX10s

I did that today when I was checking all my grounds. Everything is nice and tight as far as I can tell, I'm a stickler when it comes to crimping/electrical taping/shrink wrapping terminals to wires. I go overboard just to be 100% sure those suckers will never come loose. I just can't wrap my head around it. Nothing makes sense, I've heard of people running 2k amps off stock alternators (which is far from ideal) with minimal problems. I'll try turning the sub level up and gain down, but the gain is below half to begin with =X

I considered that too, just trying to spend as least money as I can at this point, because I've already put so much into it. Don't you think my current set up should be producing more than enough juice though?

Whats up fellas, Let me start off by telling you what I currently have installed in my 04 GMC Sierra 1500 4.8L Ext Cab. I have a Singer 240 amp alternator, an optima yellow top battery, all zero gauge wiring (big 3 + an extra ground on the battery, as well as power and ground for the amplifier), a Pioneer AVH-8400BH head unit, one Skar Audio 1500.1 amplifier, and two Skar Audio VVX10's (the version that were still being sold around Nov-Dec of last year, not the new ones w/ the dustcaps). My problem is that I'm still having major voltage issues. Currently, my subwoofer level is set to -10 (negative 10), and I haven't gotten my volume past 12, which is when I notice minor light flickering. By volume 18-20, depending on the song, the subs start clipping from lack of power. I haven't even taken it past 20 just for fear of damaging the subs. Now, all my grounds are close, if not directly on, the frame, and all the metal that they're attatched to has been thoroughly sanded down & cleaned. The only other thing I can think of to add is a capacitor, which is rediculous because I should already have more than enough power to power the alternator and subs. Even if I added a capacitor, I don't think it would completely solve the problem, because the voltage drops are pretty damn extreme. What do you guys think? Could it possibly be a faulty amplifier? I'm quite fed up at this point, as I've already spent countless hours and money trying to fix the problem. I also e-mailed Skar Audio directly about the issue, but have yet to hear back from them. Any and all insight would be greatly appreciated!