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Okie Dokie!
Quest Complete! :)

Go-Gee-Dah!

The tuning frequency will drop to around 20 Hz and you can then add a +6 dB bump filter at 20 Hz using a network like the 5234A/5235.

I've done both and prefer the non-EQ'd version in general but...

12 cubic feet can work. Make sure you look at the whole package. What was the initial tuning frequency you decided on for the 12 cubic foot enclosure? How does it affect power capacity and acoustic...

Ok, if you want to do the B4 to B6 trick then just build your 8 cubic foot volumes for each 2245H and put two ports in each volume. Tune the volumes to 28 Hz using the two ports. When you want DVD...

If you have an 8 cubic foot space available and you want the kind of 16 Hz bass response that literally busts stuff up in your place of residence fill the 8 cubic feet with four JBL 121H's and let...

I never had the need.

What is the "real estate" cost we are talking about here?

That I haven't tried...

I've posted schematics of the BX63 and BX63A numerous times. I've also uploaded the BX63 response for those who use BB6P. I've posted how to remove the low pass filter in the BX63, leaving just the...

Ralf,

Looks decent. Are these 12 cubic foot volumes?

Paul D,

Sealed enclosures can also result in boominess if the sealed volume is too small for a given transducer (Qtc ~> 1.2). Vented...

Well, I guess we'll have to wait until mine come home then :D

You got it ;)
Test boxes are fun :)
I can sit here and tell you all kinds of stuff until the cows come home but until you try it yourself and see what's going on you'll never get the experience...

It depends. Set the system Qtc for 0.5 to 0.7 and figure the required volume accordingly. A Qtc lower than 0.5 begins to enter the realm of infinte baffle as opposed to acoustic suspension. That is...

It has been my experience that the 2245H in a sealed enclosure doesn't necessarily need electrical EQ nor does it need to be specifically placed in a corner. In general, the 2242 is easier to...

Forget I mentioned the 121H. It's too difficult to explain how to employ it. Besides, it simply isn't efficient enough, even in quantity, for your particular application. Forget I mentioned the 2245H...

"I believe, that the JBL/Urei 5234A Network has a jumber inside to cut such subsonic frequencies. But I can`t find the users manual at the moment."

5234A Manual

5235 Manual