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In the Forum: Horn-Loaded Speakers
In the Thread: An ultimate horn profile?
Post Subject: Re: An ultimate horn profile?Posted by cv on: 4/15/2005

Ah Romy, did you not know that the old JBLs, RCAs (and possibly S2 as well) all have an internal flare rate of 160Hz? This is but one reason why I'm asking Martin Seddon to make me a pair of 160Hz horns...

...just had a look; it may have been 180:

Ah well, what's 20Hz between friends.

You're right of course - we want to preserve continuity. This is something Earl Geddes has suggested is easier to do with the newer generation of "pancake" drivers, if I remember rightly, as far as his waveguide design goes anyway (superficially, it's really just a conical with more horn like smooth throat transition).

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