Foaming a 2012H....??

[subwoof]

Anybody want to chime in on this thought?

Suppose I dissected a NOS 2012H and replaced the cloth surround with a foam surround?

The Xmax would be more than the 2122H...

The Pmax is a lot more too...

It would retrofit into the big monitors...

(even though the polarity is backwards)...

and it has a black frame!

sub

[gibber]

Hi Subwoof,

just stumbled over you ages-old post here.

Did you ever do it?
If so, how did it work our balance-wise compared to 2122s in your "big monitor" (4343B or 4344, i guess?)

I found your post interesting as i was also driven by http://www.frickelfest.com/forum/images/smilies/devil.pngSacrilege-oushttp://www.frickelfest.com/forum/images/smilies/devil.png thoughts

The long gap and a reference i found here on the forum to the LE15 ('coz the huge magnet, i guess) plus the thought of getting a new underhung 10" done (your pictures)
http://www.audioheritage.org/vbulletin/showthread.php?16962-Field-Guide-to-the-JBL-10-inch-Midbass-driver-2121-2122-2123&p=171653&viewfull=1#post171653
spurred my fantasy.
Guess the .4" long coil of the 2123 if in a suitable position on the cone (i.e. if just by chance placed along the middle of a 2012 gap) would make for a nice underhung design to follow the impossible-to-find underhung 2122.

And maybe take away from the 2012H that strong rise in response towards 2 kHz at the same time

Just a thought...
Ralph

[1audiohack]

I think subwoof has left the forum. I couldn't find an obituary for him but I haven't been able to track him down for several years.

Please do let me know if you hear from him privately.

All the best,
Barry.

[Ed Zeppeli]

Last post almost two years ago. I hope all is well. Hobbies sometimes take a back seat.

http://www.audioheritage.org/vbulletin/showthread.php?36766-Geometrically-Challenged-Fifteen&p=373039&viewfull=1#post373039

[gibber]

Will do, Barry. Sad to hear that there's no hint

Ralph



EDIT: posts crossed