Benefits of a small chamber...

...in a mid horn?

i'm designing a cabinet for my limmer 042 to sit in and am referring to their p3 project for rough sizing. according to my estimation the internal volume of 042 chamber is ~26L. i'm considering fitting a tubular piece made of circular layers of ply with a neoprene seal to sit on the rear panel and form a small as possible chamber for the ciare 6" driver. the horn with driver would sit in the baffle and the rear of the cone flange would locate on the neoprene ring iyswim? [img]smileys/smiley9.gif[/img]

what are the benefits of the small sealed chambers/back bowls? iirc it's to do with low end response?

all help appreciated [img]smileys/smiley1.gif[/img]

I only ever consider small chambers for mid speakers. Keeping them with a small amount of air seems to keep them fast and punchy. In the past When developing the Reflekta MX900 I placed the ten in a chamber that was part of the box shape. The speaker sounded ok. but of course ok isn't good enough. I then enclosed the speaker in a tight box within the cab, and the speaker just came to life. That was a practical lesson I learnt.

Does this apply to tops as well tony!.

thanks for the reply tony[img]smileys/smiley1.gif[/img]

reckon i'll go ahead with it then.

A small ie 'tight' air volume decreases excursion below cutoff. It does the same job on a labhorn as it does on a midhorn - just at a frequency 10x higher.

Edgar refers to reactance annulling in the edgar basshorn files on volvotreter.de downloads

Edited by: tb_mike