Coming from this thread... I have started to build my Pulse sub... nearly finished with its assembly.
I will be using the Audiopulse AX15D2 Axis 15" driver... powered by the Behringer EP2500, bridged 4 ohms.
The cabinet will be an LLT design, although it will only be tuned to about 20Hz. The volume will be approximately 7.5ft^3 with an 8.125" port at 40" long.
Here's a few construction pics:
I hope to have it finished by tomorrow and maybe get some REW measurements over the weekend.
No doubt I will be trying it out with some movie action. I have been without a sub for several months now.
After this... it's an IB with 4 Fi Audio IB3 18's. :T