I have 2 15" Memphis Mojo motors/baskets with PSI soft parts in a box that is 35" x 27" x 16" external dimensions. They are at 1 ohm on a MTX 4001d. Tuned around 35hz. Doing 146.7 on the meter now, however I have done 147.9 on termlab with 1 15 before they were rebuilt.
1. Do I need more box to get more numbers? I can go a little bigger, but I still want the back seat to go up into position.
2. Different subs maybe? I've though of trading them for a single 15 that can handle the power of the 4001d and building a bigger box. Thoughts? If I trade them, what do you think they might be worth?
3. More port? This is only going to change the tuning, so I dont think that is where I want to go with this.
4. More power? I have a single run of 0ga and the big 3 done with a large (85lb) former solar panel battery in the back with short runs off of it to the amp. Maybe dual imputs?
My endstate is to get some more numbers without spending tons of money. Any and all suggestions are welcome, but please provide an explaination as well.