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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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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:http...
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Hi
[quote user="cv"]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 any...
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I have a lot of places within my site where I, in one or other way, spread propaganda about horn-loaded loudspeakers. Frankly speaking, if I were an “ordinary audiophile” then I would look at the Romy the Cat’s exuberance about horns and perceive it ...
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Yes, I see the front "horn", also the cabinet placement. Agree that you have resonance. "Recommendations" stand.Best regards,Paul S...
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The actual first reflection of my horn is not from the side wall or floor but from the back wall. The horn is actually against the side wall and floor which gives it the configuration of a quarter horn with the side wall and floor acting as an extens...
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[quote user="Romy the Cat"] A few years back I wrote somewhere that I “developed” a semi-mathematical formula according to which an acoustic system’s result might be absolutely objectively weighed up. I did not go very far with advisement of this eq...
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From a company called CH Audio Design in Florida:http://chaudioroom.com/Sculpture.htmlCH Audio Design Sculptures Loudspeakers, with Altec 288 high frequency and 515 low frequency drivers.A fully horn loaded two way system. Using the ceiling and adjac...
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nonono, romy, there is no 500 to 800 pounds horn in my life, mjloudspeaker is and always has been different philosophy of what everyone does really, always simplified and yes lightweight construction, (we did the traditional way, it is full of ma...
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Unity horn Patent link. It is very easy to understand how each segment of the conical loads the different frequenices.http://www.pat2pdf.org/patents/pat6411718.pdfU.S. patent 6411718...
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This is very interesting, I was thinking of such an option given the existence of a basement, (I do not have that luxury, but I have a concrete slab).
The idea that the driver is actually closer to the...
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If you look that Jeffrey Jackson’s midbass horn then you can see two pillows stuck into the horns belly. Let presume that the pillows were placed there in purpose. So, here is homework for people who would like to flux their horny mussels: what is t...
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Romy,there are box-speaker manufacturers that use exactly this approach, so nothing is so new about it. I think Karma and Evolution Acoustics speaker (also layered construction) come to mind, see below.As to CNC routering, it needs a CNC cutting ...
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In this blog there is information and links about the Danley’s new TH-SPUD tapped horn. http://hornloudspeakermagazine.blogspot.com/2009/08/tapped-lab-or-something-like-that.htmlIt is so “tapped” that it is painful to looks at it but they guys cl...
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The idea of conversion of “midbass hanging thing" into upright flower horn is brilliant in my view. To curve the leg of the horn to offset the sender of mass and the horn might be opening up as nuclear bop mushroom. I wonder how good it will with 500...
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The idea of conversion of “midbass hanging thing" into upright flower horn is brilliant in my view. To curve the leg of the horn to offset the sender of mass and the horn might be opening up as nuclear bop mushroom. I wonder how good it will with 500...
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[quote user="Marc HENRY"]hi all,thanks for your interest !yes the frame is curved, HF and MF are //yes there is a phase plug in the bass horn. This cover 80-300Hz.there is a separate infra-bass section, covering 20-80Hz.images of the bass phase p...
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[quote user="skushino"]Haven't yet seen a camel here. I don't believe they are indigenous to the region. It's challenging being away from home, but no carnal thoughts of animals - yet. [/quote] It was what I heard about you :-)
[qu...
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Hello!Could anyone please advise me as to the recommended rear chamber volume for a Le C'leach horn with a throat of 240cm2, mouth of 7089cm2, length of 47cm, cutoff of 160Hz, T of 0.8? I'm thinking of using a Beyma 122Nd which has a sd of 530, Bl o...
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Thanks for the reply. I'm using a Jabo KH-55 horn for hf/upper mid, so I think I'll have to experiment with different size chambers. Beyma quote the volume displaced by the driver as 5.5 litres, so I'll start by trying a 9 litre (gross volume) back...
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[quote user="Romy the Cat"] The tweeter is sitting at 1.5K, first order. That is king of low crossover point for tweeter but it is OK. The problem that I see that with this time of the filter and a compression driver used I think the horn for th...
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[quote user="Kcct82"]Thanks Romy, your comment above cleared some of the questions I had regarding 50/60hz midbass horns.
I found some info on the driver after digging through Japanese sites. I don't know if these info will help interpret with...
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Compared to all the drivers out there,are they respectable at all.Just from my experience over time they sound better when crossed over above 800Hz.But still theres something odd.Am I for the price range of these drivers better off getting something ...
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I'm a new reader of your website and one subject which interests me a lot is that of upper bass horns.As you have noted time and again (with which I agree almost completely, after reading a lot of 'research' [many claiming to defy the laws of physics...
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Hi Keith,That is an interesting way of setup the S150 horn. Most of GOTO setup that I have seen set the S150 high and point down to listening position. All of them crossover the S150 + SG505TT at 200Hz to 1kHz range. I wish that I h...
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Interesting that someone has mentioned Tannoys in context of the upperbass thread. I still wait that someone with sane taste and unadulterated perception of results would load a LF section of Tannoy Red or Silver into a front-loaded 70Hz -80Hz horn a...
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Lbiefferies7 wrote :
"... I am interested in knowing the material that you made these out of... I've read you mention doing patents, so if "mum's the word," I can certainly respect that..."
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Hello Romy,The tapped horns were easy to construct so I made them while I was working on the midbass channel. I can't really comment on how good tapped horns are because I have never heard other 20-35hz capable systems... it does provide amazing SPL'...
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I do not know what is meant by “close bottom” or “open bottomless”-- please expound?I do not know of importance of enemys death to this topic. There is a long thread in the subwoofer section of "devil audio" about tapped horns. John mentioned gettin...
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Yes, my idea is not just optimistic but unrealistic. Returning to the question of technology for mass horn production, what about having an armature made of a coiled steel ribbon, the coiling being perpendicular to the plane of the ribbon. Thus the c...
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where are you? what are you trying to do? (cnc one pair of horns out of "something," build a mold, build a series of molds for different size horns)? i'm interested in doing the last of the mentioned options, and building molds w/ cnc for differen...
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