I like it, thanks!Archaea - Top notch post...thanks so much.
Glad to hear the tee-nuts worked for you but I get scared they'll come out or shred the wood so I went a slightly different route with my sub builds.
I use a pair of small screws to hold them in place so I won't have to worry as much as I would with a tee or hurricane nut.
Not sure why you expected sealed subs to have more output than ported...?
Switch your um18-22 to ported and it's a whole 'nother level for output.
You're comparing five sealed 18"s to four ported 18"s? Ported should have like 9 dB advantage around tune.
The "benefit" of sealed is much smaller cab sizes, and lower extension. Lower extension is a tradeoff of output.
Ahhh yes. Looking back on that experience... I don't know if the LMS-U's could have been anymore nutered. Remember the graphs you took? I brought the LMS-U's in different sized boxes to see what the real world response difference would look like. ~2.5ft^3 box was down a notable about from the 4.2ft^3 box:A pair of orbit shifters pretty much has to be experienced to believe.
I got the Cerwin Vega plugged in bridged to three nearfield subs at 3ohm load. Nearfield is nice now, VERY nice.
dgage, these ultimax UM18-24 subs should best the SI 18HT slightly --- but yes I know what you are saying. One counter point - I've heard a pair of JTR ported caps vs. a pair of sealed LMS-5400 at Gorilla83s. It wasn't close. Not that it should be when comparing output ported vs. sealed two on two - but the LMS 5400 pair in sealed boxes fell hard to the ported JTR Captivators in regards to clean output. @popalock brought the LMS-5400 to the meet - they were in his wolly mammoth boxes.
This is the first time I've had all my subs properly powered. Going to take a break --- since I just got it setup and will give it some demo time this week.
I agree with you completely, I've learned a ton in the last year...and still have a ton to learn. I think I know enough to start a sub company...we shall see.Ahhh yes. Looking back on that experience... I don't know if the LMS-U's could have been anymore nutered. Remember the graphs you took? I brought the LMS-U's in different sized boxes to see what the real world response difference would look like. ~2.5ft^3 box was down a notable about from the 4.2ft^3 box:
If I only knew then, what I know now... I could have at least saved myself several hours of laboring to make a box last minute and just ran the sim in winISD...lol/
Learned a lot since that GTG. If I could have done it all over again, the LMS-U's would have had a MUCH better showing.
That said, they STILL would have been dominated by the Caps...