Originally Posted by TenTonBass
To find your sweet spot did you just keep adjusting the receiver sub level or did you play with the amp gain also? The reason I ask is that like I said I was watching Star Trek and a scene came on that I believe over exerted the sub so I turned down the receiver from +3db to 0db and it played perfect after that.
But then when I put in Jaws and went to the scene where they first encounter the shark on Quints boat, a scene with DEEP bass from John Williams score, there was no OOMPH there anymore unless I turned the amp gain up a few more notches.
Maybe I just gotta play around a little more.
TenTonBass, I don't have any "real" subs at the moment in my condo so I have never experience that "DEEP" bass that you all know and love. What I currently have is two JL 10W1v2's in a sealed truck box that was built back in 1998 which was built for a 1993 Ford Ranger Regular Cab which had in it two old sckool JL 10W0's. My 10W1's just happen to fit in the box. My 24" ported boxes for my two JL 10W7's are almost done. I don't have any correction mics or what not but what I do have is an ONKYO PR
-SC885 Processor with regular Audyssey, a MiniDSP and a Radio Shack Digital SPL meter. This is what I plan on doing when my sub boxes are done:
1. Calibrate the sub levels to the same level or slightly hotter (2-3 dB's) than the mains.
2. Play test tones from 10Hz - 100Hz in increments of 5Hz and take readings from my Radio Shack SPL meter to manually make a graph (maybe in excel). I might change it to 3Hz increments but I'll see how it goes.
3. Use my findings from step 2 to adjust my peaks and nulls using the MiniDSP.
4. Repeat steps 2 and 3 as needed until satisfied.
5. Repeat step 1 to see if anything changed. If so, adjust accordingly.
I don't know if this is the right method of doing it but it seems most logical to me. Here's a comparison of the truck box that I have now (in yellow) and what I'm going to have (in blue). I think that the two JL 10W7's which will be getting ~775w a piece hold their own fairly well to other (much larger) speakers that are mentioned here. If I had a house and could do it all over again I think that i'd be getting four of the new SI 18" HT subs but in a condo I think that would be a bit too much for my walled neighbors so i'm going to have to be satisfied with my two ported 10's. I think that it'll serve me well for the next few years until I graduate from college.