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In the Forum: Horn-Loaded Speakers
In the Thread: Romy's Horns
Post Subject: Not Romy's but your hornsPosted by Romy the Cat on: 4/14/2005

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 TonyB wrote:
Romy, what are horn flare frequencies of your horns? I understand that both are Tractrix. My guess is that the midbass is 125Hz with a sealed rear chamber and 4" throat. Correct?
They tunes for 115Hz and pushed in room down to ~95Hz one channel and 150Hz another. 
 TonyB wrote:
What is the mid horn flare frequency? (I saw 2 numbers).
I have currently 400hz. I presented in this thread a lot of data to make own decision, still it would depends only from what kind upper bass solution you will be using. Would your upperbass horn at 700Hz be good and S2 at 700Hz?  Do you think anyone would tell you? Do you thienk you will be able to tell yourself until you build it?  :-)
 TonyB wrote:
I have a new pair of Martin Seddon 205Hz horns calculated according to JM LeCleac'h's expansion (very similar to Tractrix). I will use them at first for midbass. But I really want them to go an octave lower.
The 200Hz horn would do 400Hz of sound and it is hardly a midbass horn. It sound to me more like it is candidate to use S2 with a lower crossover point and higher order filter. Still. Tony do not worry about the S2 utilization unit you define what tha upper bass would be.  Remember, the upperbass is the most important range and it should have a very smooth translation into the S2. The upper bass is the region where the most of the fundamentals of instrument and voices live and there is no such a thing as too good upper bass channel...

Romy The Cat

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