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EV 6615 bass horn

173.67.178.98
Posted on December 27, 2014 at 05:04:04
Scholl
Distributor or Rep

Posts: 1358
Joined: March 8, 2001
 Hi guys,

Hope you all had a great Christmas and wishing a happy new year!

After years of experimenting (mistakes) and reading about many other folks projects along with lots of listening in many different venues it seems to me that compression loading as much of the bass\midbass reagent as possible is a good design philosophy. Right now I only compression load the subwoofer and tweeter ranges. Although I havn't directly experimented with midbass horns, believe that may be the band that benefits most from compression and horn loading.

Searching areas close enough to drive to I found some EV PI 6615s which look to me to be a decent setup.

hat kind of horn design do you guys think this is, tapped, or scoop? Will it really go to 50hz without aide?

I know it needs a controller\crossover but I have tons of parts to try a passive.

Any other thoughts opinions experiences are welcome.

Thanks,

Scott

 

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RE: EV 6615 bass horn, posted on December 27, 2014 at 05:43:58
moray james
Manufacturer

Posts: 1599
Location: Calgary on the Bow
Joined: May 19, 2002
 very interesting find this bass cabinet,difficult to really say without a drawing or a cabinet to physically look into. Would seem to be a tapped horn perhaps Tom could comment or knows? Best regards Moray James.


http://www.mypicsonline.net/archive/archives.telex.com/archives/EV/Speakers/EDS/PI6615%20EDS.pdf

http://cafe.daum.net/_c21_/bbs_search_read?grpid=1bgH&fldid=45Tx&contentval=0035Yzzzzzzzzzzzzzzzzzzzzzzzzz&nenc=&fenc=&from=&q=&nil_profile=cafetop&nil_menu=sch_updw&listnum=


moray james

 

RE: EV 6615 bass horn, posted on December 27, 2014 at 06:58:41
Scholl
Distributor or Rep

Posts: 1358
Joined: March 8, 2001
 They refer to it as a "Subscoop" Being the box is 30" deep a 70" 1/4 wavelength would put it at 47hz. Not a bad idea for a "hit box".

 

RE: EV 6615 bass horn, posted on December 27, 2014 at 21:14:33
djk
Manufacturer

Posts: 6135
Joined: June 17, 2000
 Lame.

 

RE: EV 6615 bass horn, posted on December 28, 2014 at 04:01:44
Scholl
Distributor or Rep

Posts: 1358
Joined: March 8, 2001
 Do you think the box is ineffective or the name?

 

RE: EV 6615 bass horn, posted on December 28, 2014 at 06:51:44
Bill Fitzmaurice
Industry Professional

Posts: 5371
Location: New England
Joined: October 20, 2002
 I've not seen the innards, but by all appearances and EVs own description on their data sheet it's a variation of their MTL manifold cabs, making it technically a bandpass, not a tapped horn, with the driver reverse mounted to maximize the volume of the chamber it's firing into. One would have to see the plans for it to be sure, but with only 100dB sensitivity that indicates that it isn't a tapped horn, and Tom D. won't have any prior art issues.

 

RE: EV 6615 bass horn, posted on December 28, 2014 at 18:46:07
Don Reid
Audiophile

Posts: 890
Location: Rural NW Georgia
Joined: February 2, 2001
Contributor
  Since: April 1, 2010
 djk, I don't wish to seem harsh or condemnatory, but I find your one word response, "lame" to be an example of very poor communication. What, pray
tell, are you proclaiming to be lame? Is it the EV 6615, Mr. Fitzmaurice's response, another response or something else altogether?

Enquiring minds want to know.
I dream of an America where a chicken can cross the road without having it's motives questioned.

 

Some Graphs , posted on January 6, 2015 at 22:45:05
djk
Manufacturer

Posts: 6135
Joined: June 17, 2000
 photo MTL-1X.gif

This is the 18" version, no real bass. It's a vented box with a horn-port.

photo EVvsJBL.gif

No real HF up top, the DH1A has about 10dB more output in the top octave.

 

RE: Some Graphs , posted on January 10, 2015 at 05:23:33
Scholl
Distributor or Rep

Posts: 1358
Joined: March 8, 2001
 From a distance it could have been a good design concept.

 

RE: Some Graphs , posted on January 10, 2015 at 22:02:41
djk
Manufacturer

Posts: 6135
Joined: June 17, 2000
 Yeah, they look good don't they?

I like EV, just bought another pair of DH1A, and a pair of EV15B the other day.

 

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