What has been your favorite "small" folded midbass horn (at least to 100Hz) and why ?
and by "small" lets say no larger maximum than a Peavey FH1 (~10 cubic foot bulk) with hopefully less than that cabinet's 24 inch depth. Better yet - vs La Scala's 8 cubic foot bulk.
Size, path, St, Sm, driver size, etc. - subjective impressions,thoughts, on tradeoff, associated mid/treble horns.
and by "small" lets say no larger maximum than a Peavey FH1 (~10 cubic foot bulk) with hopefully less than that cabinet's 24 inch depth. Better yet - vs La Scala's 8 cubic foot bulk.
Size, path, St, Sm, driver size, etc. - subjective impressions,thoughts, on tradeoff, associated mid/treble horns.
PM 90/60. New DIY Mid High (90deg) - AKA PM90 | Sound Forums
Mid bass range 100-700Hz. Dual 12" folded horns MTM arrangement, surrounding coax CD using commercial horns.
5 1/2 cu feet bulk. 17" depth. About 80 lbs
Only negative (to some folks) is it needs dsp to smooth mid horn's response for best performance.
POWERFUL clean clear sound...puts grins on everybody's faces 😀
Mid bass range 100-700Hz. Dual 12" folded horns MTM arrangement, surrounding coax CD using commercial horns.
5 1/2 cu feet bulk. 17" depth. About 80 lbs
Only negative (to some folks) is it needs dsp to smooth mid horn's response for best performance.
POWERFUL clean clear sound...puts grins on everybody's faces 😀
Given the limits of Freddi’s small, there are a whole bunch of good Woden BLHs as well. All much less than 10ft3 but some are 6 ft tall.
dave
dave
lots of cool answers so far --
- ~ Mark100 - would 1/2 of that horn work decently at 1pi or even 2pi? (I don't currently have a way to run hornresp plus kinda ill)- what drivers does it like ? 15mm Baltic birch with bracing should make it reasonably rigid.
Are there any drawings of it with more measurements indicated ?
- ~ Mark100 - would 1/2 of that horn work decently at 1pi or even 2pi? (I don't currently have a way to run hornresp plus kinda ill)- what drivers does it like ? 15mm Baltic birch with bracing should make it reasonably rigid.
Are there any drawings of it with more measurements indicated ?
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Until thirty years ago I used Eliminator horns. They are a little similar to the Peavey horns mentioned (but smaller) and also using a single 15". Over 100 Hz they were louder than my Klipschorn copies but at 50 Hz the cornerhorn won. But I have never measured them actually, simply because of the fact that I didn't have any means to do so back then.
Regards
Charles
Regards
Charles
hi Charles,
did the late-great Ray Newman design the Elminator ? - IIRC the data sheet described it as a 55Hz flare rate - which seems odd.
I think Ray did the Sentry IV bottom which I have and its louder in its range with two Pyle pym1298 (like Kappa12a & paralleled) than a Klipschorn.
The local university (then college) had Eminators - typically one would be placed at the very frontof the coffee house stage - where it had no bass whatsoever. Sentry IV were placed that way - Acoustic Control W bins too - - no respect of room boundaries
Here's Sentry IV's response with the factory foam surround. alnico motor Gefco woofer, budget Force 12 and then EVM12L - it would not go that low in my room. The lower Q EVM12L shows its motor strength.
Its a cool horn -
My Sentry bottom was not in the best spot here - also I called a CTS K33
an "E" 😀
did the late-great Ray Newman design the Elminator ? - IIRC the data sheet described it as a 55Hz flare rate - which seems odd.
I think Ray did the Sentry IV bottom which I have and its louder in its range with two Pyle pym1298 (like Kappa12a & paralleled) than a Klipschorn.
The local university (then college) had Eminators - typically one would be placed at the very frontof the coffee house stage - where it had no bass whatsoever. Sentry IV were placed that way - Acoustic Control W bins too - - no respect of room boundaries
Here's Sentry IV's response with the factory foam surround. alnico motor Gefco woofer, budget Force 12 and then EVM12L - it would not go that low in my room. The lower Q EVM12L shows its motor strength.
Its a cool horn -
My Sentry bottom was not in the best spot here - also I called a CTS K33
an "E" 😀
The Eli 1 had a sigle 15" and a single folding whereas your Sentry IV uses double 12" and a double folding. There was also the TL4025 which had the same folding as your Sentry but uses a single 15". Two of them together would be like a larger brother of your Sentry.
My estimation would be that the flare rate is around 60 Hz.
Regards
Charles
My estimation would be that the flare rate is around 60 Hz.
Regards
Charles
Hi freddi, don't really know how to comment as to how well 1/2 the horn would work. I think a big part of the design's success is its pattern control blending between CD horn and mid horns. Not sure how 1/2 mid-horn would work.
You could ask Peter on 60 Degree DIY Mid Hi - AKA PM60 | Sound Forums
That link is for the 60 deg version and has plans, driver recommendations etc. (It's the same box as for the 90 deg version.)
I built mine out of 15mm baltic and it feels quite rigid.