So right now I have a DD9500d motor with RE SX softparts, and I'm thinking of doing an upgrade. I might buy a Fi BTL15 with all basic parts. I would still run it off my RE 12.1 (eventually upgrade to something with more power) and use my current box, which is 3.5 cufeet tuned to 34 hz. Would that be a lot louder than the sub I run right now? Also, I'm only going to use this for daly driving.
