Hey, Scott!
Quote:
Scott S wrote:
 Ahhh, two RLp18's will be a HUGE step up from a single Def Tech 15. I know, I had the same one. (well, not the + version. Same thing but yours has a slightly bigger amp.) |
I had two of those PF15TL+ subs. Bought a second one for parts/troubleshooting after pushing the first one a little too hard and fearing something wrong with it.
Quote:
Scott S wrote:
One thing I would change....go with an 8" port if possible. I think you will be much less likely to run into chuffing if you push them to the extreme. Dont know about your bass habits.  EDIT: Ooooh, yeah. I just ran the sims on a single d2 with 600w and the 6" port. Definitely gonna have some heavy airflow in those ports. You dont want that! Not sure if you are gonna be able to see the ports of if its a big deal or not. I got both my 8" ports from a lumber yard. They were 8" sonotubes, actually. Total cost of both cut down to size....about $15. I'd do that if I were you. Unless you just had to have flared ports. |
There will be
two 6" ports in each cabinet. This afford 12.5% more cross sectional area than a single 8" port, and gave me a little more room inside the cabinet as far as staying one port diameter away from the wall(s). With a 1.5" radius flare, I should be in good shape. Collo's testing showed improvement going up to a 40mm flare on a 6" port, so I figured 1.5" (38 mm) was where I wanted to be.
While I have your attention...
I have a few questions about your build. What speaker terminals did you use? Happy with them? Did you wind up using the 10-32 size machine screws (instead of 1/4-20) with the hurricane nuts? Any particular reason you used fiberglass insulation inside the cabinet instead of polyfill or some other material? I'm not sure which is best, but I would like to avoid fiberglass if I can help it.
Thanks!
Bradley