Daltonkk

Okay I need help and I don't want to make this a brand vs brand thing I want to know if anyone has real world experience with either woofer and which could be louder in my setup. So to start it off I'll tell you what I got, what I want, and the setup I'm going for. Right now I have a 2.5-2.7 cubic foot custom ported sub box tuned to about 38hertz with 3 8" SKAR Audio VVX d2 wired to a SKAR Audio SK1500.1 amp all powered by 1/0AWG SKAR Audio Amp wiring kit. This was more than loud enough for what I wanted. But after a period of time I decided I want it to be louder. I want to keep the same box period the end I'm not buying another one. I am looking at either 3 Sundown X8" subs with a 2000.1 Sundown Amp. Or 3 SKAR Audio ZVX 8d2 on a SKAR 2500w amp. Let me know or if you might know a louder 8" setup