Would this be only stupid thing to do?

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   http://koti.mbnet.fi/parkerf/1850/1850ext.jpg

Something like that with biiig butterfly catches and some heavy bracing of course.

I drew that one 115cm long so there could be two 1850s on their side on top of that as a kick bin. I haven't done any calculations, only rough drawing. That thing should add something like one metre of length.

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pfly Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 25 October 2007 Location: Helsinki, Fin Status: Offline Points: 2827	Post Options Post Reply Quote pfly Report Post Thanks(0) Quote Reply Topic: Would this be only stupid thing to do? Posted: 25 June 2008 at 6:59pm
	http://koti.mbnet.fi/parkerf/1850/1850ext.jpg Something like that with biiig butterfly catches and some heavy bracing of course. I drew that one 115cm long so there could be two 1850s on their side on top of that as a kick bin. I haven't done any calculations, only rough drawing. That thing should add something like one metre of length.

mobiele eenheid Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 15 August 2004 Location: Netherlands Status: Offline Points: 1563	Post Options Post Reply Quote mobiele eenheid Report Post Thanks(0) Quote Reply Posted: 25 June 2008 at 8:30pm
	Been thinking along those lines as well (other cabinet). You could most likely leave the rounding bit, making bracing and building a lot easier/cheaper. From tests so far vibration between cabinets didn't seem so much of a problem, but didn't test with more than 600 W. It doesn't seem to work on every cabinet tho, sometimes the added length in contrast to the added mouth area is just plain wrong. Definately worth a simulation. Regards Johan Edited by mobiele eenheid - 25 June 2008 at 8:35pm

Hi_Varu Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 17 January 2008 Location: Italy Status: Offline Points: 181	Post Options Post Reply Quote Hi_Varu Report Post Thanks(0) Quote Reply Posted: 26 June 2008 at 11:16am
	interessant!...hope it will add db-in the 20/40hz zone... mr ROG???

Deadbeat Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 12 March 2008 Location: Singularity Status: Offline Points: 3167	Post Options Post Reply Quote Deadbeat Report Post Thanks(0) Quote Reply Posted: 26 June 2008 at 1:09pm
	Rog's not here anymore... Check out Walt's modular horn, for something similar. If I'm not mistaken, the B-Zero works with 2 horns as well. Edited by Deadbeat - 26 June 2008 at 1:09pm
	Away on extended leave.

Death_blooms Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 03 November 2007 Location: United Kingdom Status: Offline Points: 98	Post Options Post Reply Quote Death_blooms Report Post Thanks(0) Quote Reply Posted: 26 June 2008 at 9:40pm
	that looks rather large

pfly Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 25 October 2007 Location: Helsinki, Fin Status: Offline Points: 2827	Post Options Post Reply Quote pfly Report Post Thanks(0) Quote Reply Posted: 26 June 2008 at 11:37pm
	Of course it looks large, I believe you couldn't do much smaller 2.5 meter long front loaded horn with a mouth even remotely big enough? The point is it being modular it shouldn't be too hard to move around and if there's no need for extra sub frequencies, the extension could be left in the storage. I'm not capable of modelling the horn (newbie me!) but that sketch can't be far out, if someone is bored enough to try to model it I would be really nice!

Death_blooms Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 03 November 2007 Location: United Kingdom Status: Offline Points: 98	Post Options Post Reply Quote Death_blooms Report Post Thanks(0) Quote Reply Posted: 27 June 2008 at 9:18am
	oh so the extension will be detachable? nice idea

snowflake Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 29 December 2004 Location: Bristol Status: Offline Points: 3443	Post Options Post Reply Quote snowflake Report Post Thanks(0) Quote Reply Posted: 27 June 2008 at 11:39am
	can't acces that link. can you post the image please. cheers Phil

Hi_Varu Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 17 January 2008 Location: Italy Status: Offline Points: 181	Post Options Post Reply Quote Hi_Varu Report Post Thanks(0) Quote Reply Posted: 27 June 2008 at 4:38pm
	any expert commet? Edited by Hi_Varu - 27 June 2008 at 4:40pm

Hi_Varu Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 17 January 2008 Location: Italy Status: Offline Points: 181	Post Options Post Reply Quote Hi_Varu Report Post Thanks(0) Quote Reply Posted: 29 June 2008 at 7:28pm
	so??? Edited by Hi_Varu - 08 July 2008 at 1:54pm

tommysb Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 24 April 2006 Location: Finland Status: Offline Points: 1036	Post Options Post Reply Quote tommysb Report Post Thanks(0) Quote Reply Posted: 29 June 2008 at 8:33pm
	Not an expert, but it'd be worth doing (trying) definately, I've often thought of doing similar myself! Longer horn+bigger mouth = lower FS and higher efficiency as far as I know. It wouldn't cost much to try, and if you have the storage space, what is there to lose?

mobiele eenheid Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 15 August 2004 Location: Netherlands Status: Offline Points: 1563	Post Options Post Reply Quote mobiele eenheid Report Post Thanks(0) Quote Reply Posted: 30 June 2008 at 11:02am
	Added in the 40 -50 Hz area mostly, 40 Hz + 3-4 dB. Such a thing is easy simulated in Hornresp. Regards Johan