Ive made a mistake building my HD15s,

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   Ive mesured the distance from the point which the baffle meets the
curved section to the back wall too short, i mesured it from the edge
of the wood not from the back wall, so internally its 182mm instead of
200mm.  Is this going to make a big difference to the sound? 
Its done now all the glue is dry so its going to be like this, but i
was just wondering if this was big enough to make much difference to
the sound?

Thanks.

James

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Timebomb Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 11 October 2004 Location: Lancaster Status: Offline Points: 2763	Post Options Post Reply Quote Timebomb Report Post Thanks(0) Quote Reply Topic: Ive made a mistake building my HD15s, Posted: 07 May 2005 at 2:12pm
	Ive mesured the distance from the point which the baffle meets the curved section to the back wall too short, i mesured it from the edge of the wood not from the back wall, so internally its 182mm instead of 200mm. Is this going to make a big difference to the sound? Its done now all the glue is dry so its going to be like this, but i was just wondering if this was big enough to make much difference to the sound? Thanks. James

tb_mike Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 01 October 2004 Location: New Zealand Status: Offline Points: 2744	Post Options Post Reply Quote tb_mike Report Post Thanks(0) Quote Reply Posted: 09 May 2005 at 5:26am
	Probably will make a slight difference,but is it audible? probably not. If I understand correctly what you mean,youve made the horn slightly higher compression at the throat.

Timebomb Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 11 October 2004 Location: Lancaster Status: Offline Points: 2763	Post Options Post Reply Quote Timebomb Report Post Thanks(0) Quote Reply Posted: 09 May 2005 at 7:02pm
	Yep i think youve got me, ive made the throat a little smaller and the rear chamber a little bigger. When ive built the next paid ill compair them and see if i can tell a ifference. Thanks Mike James

tb_mike Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 01 October 2004 Location: New Zealand Status: Offline Points: 2744	Post Options Post Reply Quote tb_mike Report Post Thanks(0) Quote Reply Posted: 11 May 2005 at 12:09am
	since i ts only a wood thickness difference,its probably ~100cm^2 different throat area,which is about a 20% difference,wont change that much. The rear chamber will be slightly more compliant and not reduce excursion quite as much,but again not a problem probably Cheers!