similar design, possible simulations?

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   Hi: my first post here. Onur Ilkorur has a nice web site at this address http://www.yildiz.edu.tr/~ilkorur/ There are two cabinet designs there which are very similar to the HD15, one in particular is very similar. I was wondering if anybody here could do simulations of Onur's cabinet and compare it to the HD15? Thanks moray james.

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moray james Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 September 2005 Location: Canada Status: Offline Points: 141	Post Options Post Reply Quote moray james Report Post Thanks(0) Quote Reply Topic: similar design, possible simulations? Posted: 07 September 2005 at 3:49am
	Hi: my first post here. Onur Ilkorur has a nice web site at this address http://www.yildiz.edu.tr/~ilkorur/ There are two cabinet designs there which are very similar to the HD15, one in particular is very similar. I was wondering if anybody here could do simulations of Onur's cabinet and compare it to the HD15? Thanks moray james.
	moray james

stereokiller Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 16 February 2005 Location: France Status: Offline Points: 24	Post Options Post Reply Quote stereokiller Report Post Thanks(0) Quote Reply Posted: 07 September 2005 at 9:25am
	hi, couldnt find any design which looks like a hd15. am i stupid or blind, or maybe just tired??? greetings

angus Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 10 August 2005 Location: TW, Kent, UK Status: Offline Points: 516	Post Options Post Reply Quote angus Report Post Thanks(0) Quote Reply Posted: 07 September 2005 at 9:43am
	This one I think.

moray james Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 September 2005 Location: Canada Status: Offline Points: 141	Post Options Post Reply Quote moray james Report Post Thanks(0) Quote Reply Posted: 07 September 2005 at 3:25pm
	That's the one. Thanks for posting the link. As you can see the one cabinet is just a little bit larger than the HD15. Tuned to approx. 50 Hz. I would be interested in hearing comments on this design. Construction is more or less the same as for an HD15. Horn (Onur's)looks to be a little longer. Air load in front of the driver is more symetrical and larger than the HD, also would seem that there will be less direct reflection back into the driver from the cabinet walls. The other cabinet design can be configured to form a "W" bin with a second cabinet. Both are very interesting designs. Thanks for your help and time. Regards Moray James.
	moray james

Timber_MG Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 March 2004 Location: South Africa Status: Offline Points: 1454	Post Options Post Reply Quote Timber_MG Report Post Thanks(0) Quote Reply Posted: 07 September 2005 at 3:47pm
	Simulate it with a larger front chamber than the HD15 (measure it out using geometry) and take the transition from front chamber to horn throat as 1/2 the shortest diameter of the smallest opening added onto the length of the horn (simulated as two conical segments)