What if I put 2242H's in it...?
might as well and get rid of those whimpy speakers you're currently using. Hey, let's get some REAL volumn going here.Originally Posted by Zilch
I gotta be careful not to trigger a seismic event in Kansas.Hey, let's get some REAL volumn going here.
Actually, it came without drivers from subwoof. Wasn't cheap movin' that from NY to here.
BUT, I have a pair of E155-8's I'm gonna load in it today. BB6P says I'd get about 3 dB more SPL with 2242H's, and probably even lower distortion. No retuning necessary. I don't have a pair of those, tho....
The results will be reported here: http://earthquake.usgs.gov/
I gotta be careful not to trigger a seismic event in Kansas.
Actually, it came without drivers from subwoof. Wasn't cheap movin' that from NY to here.
BUT, I have a pair of E155-8's I'm gonna load in it today. BB6P says I'd get about 3 dB more SPL with 2242H's, and probably even lower distortion. No retuning necessary. I don't have a pair of those, tho....
The results will be reported here: http://earthquake.usgs.gov/
Man, I've GOT to make a trip out to Ca. and see everyone...to many goodies out there
a) View inside from one of the end chambers. Box is face down; end of duct in opposite chamber peeks in at the right. Gaskets in place, ready to load.
b) E155-8 Loaded.
c) View in through one of center chamber ports shows motors back-to-back. Only about 1" separates them. Might have to shim 2242H's to make 'em fit.
d) RTA measures actual performance. Mic at 1 M aimed midway between center chamber ports (where the action is). Mackie amp low pass at 125 Hz. Low end bars are 20, 22.5, 25, 28, 31.5, 35.5, and 40 Hz.
It plays better than JBL spec, basically. +/- 1.25 dB here from 28 to 100 Hz, down maybe 7.5 dB at 22.5 Hz.
As subwoof earlier observed, these are very efficient. Just a coupla watts rattles doors and windows throughout the house. That gets boring pretty quickly.
They have full bass tonality, i.e., no boominess. They don't do subsonic like paired B460's do tho. Could give 'em a little boost down there, probably, but only so long as I don't crank it....
could try a pair of 2245's and a little eq. for more subsonic stuff if needed. the E-155's aren't subwoofs in the true sense.a)
They have full bass tonality, i.e., no boominess. They don't do subsonic like paired B460's do tho. Could give 'em a little boost down there, probably, but only so long as I don't crank it....
Maybe I've miss this ( sorry if I have), but what are these tuned to.
also, try running the software with some 2245's. Those were the big sub's JBL made. E-155's are more of a musical instrument speaker ( but then you know that)
It felt like someone fired up something like that over here last week. Fortunately it was for only a few seconds and at reduced volume. They kept it under a 6.0.
That wasn't me! Although, come to think of it, it was the day I got my "new" SB-5 running, maybe the straw that rattled the fault loose?
Mike Scott in SJ, CA
Drive 'em to the Xmax!
Hello,
a happy and healthy new year to all!
In the meantime i am a happy owner of an old 4685; at least i believe it's a 4685...
Here is a picture of that cabinet. Does anybody know this box? There is no label on the backside but i'm sure it's an original JBL cabinet. May be a predecessor of the established 4685?
Best regards
Wolf
Three chambers inside, with mounting for two drivers in the middle one?
Yes. I hope you can identify the cabinet with the following fotos.
Thank you in advance for your help!
Best regards
Wolf
I see a few are taking a peek at this thread, we know your names…
Why doesn’t JBL resurrect this classic JBL beast? It would sound so much awesome in THX cinema, because I want mindless out of control low frequency vibrations!
I will be building clones of these sometime next summer when the new cabinet shop comes online...stay tuned...
sub
12" and 15" too, I hope....
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