I put 6 ddx 15s in my Toyota Camry on a Taramps md8k and I did 159 dB at 37 hz!!! These are the best skar subs for sure. That and the ZVX’s. All their other subs are cheap mass produced Chinese subs available for anybody to slap their brand name on and have no research and development into them. The ddx does. It’s the best for the price anywhere. The sundown SA doesn’t even have as good specs as the ddx and it’s way more expensive! Just please take my word and get these subs. The zvx and ddx are the best subs skar offers and I’ve had both. They give you the best value for what you actually get out of them and I have never found a better deal ever and I’ve been in car audio for a long time. If you wanna see videos or contact me my YouTube is ImThirstyH2O
Replaced my SA-15Rev.3’s with the DDX 15’s after a motor shifted and can say I am far beyond impressed. Can definitely tell the difference in the subs in all aspects. Better lows, cleaner sound, extremely happy with them! Don’t Sleep on these DDX’s. Box built to spec running them off a SK2500.1.
I purchased 4 DDX 15s used from a guy running them on two sound digital 10k's. They were abused when I got them, but I ran them hard for over a year on 2 Skar RP 2000.1d. I am now replacing three of them due to coil issues. So now I will be going with new ones because they are worth buying again.