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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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[quote user="RonyWeissman"] I have the 515-Gs If I remember correctly, and I am trying to find suggestions on what is proper horn-loaded cabinet still. And I agree my tannoy golds so far have worked best with early 70's mcintosh 22...
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I had quite a number emails from different people who picked 515G or AK15X drivers and would like to build a midbass horn from 60-80Hz to ~500Hz. I played a lot with different 515 (B, E, D, A) and with different AK15X but I never went for the right h...
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[quote user="jessie.dazzle"]Hi Klaus,
Spec sheet on the bass driver you plan to use here: http://www.greatplainsaudio.com/downloads/515_G.pdf
[/quote]
got it, thx. used this data to simulate in hornresponse,looks very promising. but i know...its ...
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[quote user="RonyWeissman"]A mid-bass horn for my Altec 515-8G drivers operating from 100-600hz [/quote]
Rony, I think your wish to have mid-bass horn with 515G is a bit faulty. A mid-bass horn for 515G shall be 50-600 Hz. Let me to explain. T...
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Rony,
After reading my post about the undersized core (for the given current) of Lundahl transformers you might be an impression that Lundahl are some kind of second choice. The undersized amorphous Lundahls forum is second chose for an ultimate ful...
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I had quite a number emails from different people who picked 515G or AK15X drivers and would like to build a midbass horn from 60-80Hz to ~500Hz. I played a lot with different 515 (B, E, D, A) and with different AK15X but I never went for the right h...
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[quote user="Marc HENRY"] For this Musique-Concrete horn system called "Grande Castine" (it was developped in Saint Cast Le Guildo, Britanny, France, from were females inhabitants are called "Castines" ) i prefered a modified 60Hz Le Cleac'h cylindri...
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[quote user="RonyWeissman"] I have the 515-Gs If I remember correctly, and I am trying to find suggestions on what is proper horn-loaded cabinet still. And I agree my tannoy golds so far have worked best with early 70's mcintosh 22...
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The exceptional 15-inchers would be two fitted in two categories: the bass 15-inchers and wide-range 15-inchers. It is imposable to think about the exceptional and wide -range 15-inchers and do not mention the 1946 -1973 production of the Tannoy Dual...
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[quote user="Paul S"] If Marko "needs" 3rd order, is somerthing else amiss? [/quote]It is not amiss but an area where the things should be explored. What I like about horns that they have very little ambiguity and if everything is done “properly” the...
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[quote user="Merlin"] Absolutely inadequate for desiphering the subjective sound quality yes - all we can deduce is that the system has a maximum sensitivity of 98db/w at best, and quite possibly less. As do many fine loudspeaker systems.
All louds...
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[quote user="noviygera"]What is that round yellow thing in the right corner of the picture? A driver of some sort? [/quote]Yes, they are Fane 24” bass driver with 24Hz primary resonance. I am waiting for the final sound check; the final is long time ...
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hi romy!i opened the s2 some nights ago, to me it looked different, but i will check it again, maybe some reflections really fooled me. i searched your s2-guide very carefully, the one in your pic i would without doubt identify as a clear suspension....
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John, I see where you go with it. I afraid that I will not be making my drivers – I have no idea how to make them in order them to sound the way I need. I have no problem to design and to make 4" exit compression driver or to undertake a project to r...
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[quote user="Romy the Cat"]Yes, they are Fane 24” bass driver with 24Hz primary resonance. I am waiting for the final sound check; the final is long time away. I will be testing today different back chamber size and different drivers. I have a few Al...
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There are a few other ways to roll off HF: shaping and extending front chamber, playing with damping of the driver cone and so in. The Altec 515G at 220H, what the channel above? When you say that you have too much HF then how do you methodologically...
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[quote user="jessie.dazzle"]For your rear chambers, as they will be adjustable, it would be smart to go with a max volume that is larger than the max you estimate to be necessary. [/quote] The size of rear chamber is something that dials in the compo...
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[quote user="Romy the Cat"]
Were the quotes above no enough for anyone who is familiar with the subject?Rgs,Romy[/quote] Absolutely inadequate for desiphering the subjective sound quality yes - all we can deduce is that the system has a maximum s...
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Another very quick post - I have guests arriving from Japan in a couple of hours. Will respond more thoughtfully when I have some free time.University Dean plans: Mouth - 1080 in^2Throat - 78 in ^2S(d) - 132.7 in^2Compression ratio - 1.70Path lengt...
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A visitor of my site sent me email with following:
“I take it you don't like the Rogero style (or Johan Dreyer) bass horns with wings, but you could add compression to a similar setup and make it work properly. I have made several design...
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Klaus,
The 515-8GPH were in same scale as the 515G with slightly above 35Hz resonance frequency and 103 sensitivity - a very good candidate for 60Hz horn. The 10” throat? No bolls to go for 9”, how about 8”? I’m just kidding. The throat ...
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[quote user="Romy the Cat"]Hi Romy!
The 515-8GPH were in same scale as the 515G with slightly above 35Hz resonance frequency and 103 sensitivity - a very good candidate for 60Hz horn. The 10” throat? No bolls to go for 9”, how about 8”? ...
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[quote user=""]...The most obvious problem is with the Bass drivers, which are left to radiate both to the front (via the horns) as well as to the rear... which in this case really means to the front!... The rear of the drivers are aimed upward at a ...
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Well, in context of a full-range speaker, like largest Wilsons or the similar, the answer would be unquestionably no. Even if we biamp those speakers then the LF still is too wide bandwidth and too geographically bind to the MF section. The wor...
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[quote user="jessie.dazzle"] You might be able to get away with a bit less; if I remember correctly, my calculations at the time (based on the above driver) yielded a theoretical ideal volume of something like 23 cubic feet (sealed), so still not...
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It is strange topic that I always had difficulties. I have a storage filed with all possible audio goodies, starting from some exotic goodies that people would chaise on junk-years for years and ending with Jimmy Hoffa’s skeleton. It is not that...
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In the linked there above “Barn Conversion - James' Project” I have expressed my attitude toward low frequency bass. I certainly not “against” bass horn it but have “concerns”. The “open bottom” concept that I invented for myself is always make me to...
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We had this exchange with Christopher Witmer, who lives in Japan, via the AA about the new driver form some small Japanese manufacturer. The dirt who runs that form has deleted the whole development. Hm, people wonder why for years I have a vocal and...
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[quote user="MusicLover"] Romy, SS amps have a FLAT freq curve and essentially inaudible distortion. THey don't cause ANY sound. No one has been able to scientifically demonstrate that SS amps add any HUMAN AUDIBLE signature to the signal. While I un...
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[quote user="jessie.dazzle"]The thraot size will be 7 inches. [/quote]
Wow, THAT IS BOLD!!!! The 45Hz how from 7” throat – that is very-very cool and very positively-obnoxious.
[quote user="jessie.dazzle"] Yes I have thought about paying someone e...
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