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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I know that I am bit koo-koo but it is what it is. The point is that for the last few days my life is fully spinning around my midbass horn project. I have a believe that a fate of man (in country to woman) is to conceive veracity and to harvest a m...
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Eventually the Second Milq is converted to work with new room and new midbass horn. Not I have the complete Melquiades/Macondo setup that is more or less optimized to work in my need room. The Sound is very pleasant and not is the fun time starts. No...
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Not to be too presumptuous but i thought i'd start a thread that could serve as a repository for lowther comments, ideas etc.the impetus for this was that rola experiment i mentioned in the cogent rmaf thread. I was thinking hmm, 'hard', 'shouty' tha...
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Hi Romy,Well maybe it is that the answer. My mono is pierre clement eb 25 broadcast cartridge, the original not the contemporary remake. The output is extremely high, almost overwhelming my phono amp I have the impression. Also, it tracks very heavy...
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Hi Romy,You wrote:"They tunes for 115Hz and pushed in room down to ~95Hz one channel and 150Hz another."So do your horns have 115Hz flare frequency? (and have the rear chamber tuned for 115Hz as well)From the pictures the horns lo...
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[quote user="rdrysdale"] I mean that with a horn loaded compression driver, a strong motor, and a very light diaphragm, the attack and transients are more life like. Because the diaphragm can more precisely follow the recorded signal, the reproductio...
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Today I spent many hours trying to remove large LF transformers from Melquiades belly and replace them with another one that would load my 6C33C a bit harder. I do idle my output tube very hard and my objective was to get to let it go slightly. The ...
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[quote user="skushino"]Have you considered the opportunity of raising your upper bass HP crossover? How high do you plan to use your mid bass horns? If your mid bass is comfortable playing up to 280hz (or whatever the right freq is), you can use yo...
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My Koshka does not care about my midbass horn. So far the midbass horn live in basement shop and Koshka hardly ever go there. After 2 day I spend in the basement working on my horn, this evening Koshka came the workshop and begin to behave strangely....
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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="Morfeas"] Fs of the driver is measured at 32HZ matched for both channels. [/quote] Manolis, if you have 32HZ of loaded driver resonance and a large throat in such a short horn then I would propose that you have your 50HZ not from the loa...
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Last night it was a surreal experience, sort of QSound–type experience. I still do not know here will be the exact location of my listening chair, it is debating with 2 feet, and because of this I did not bother to lock the Macondo’s channels in tim...
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[quote user="haralanov"]Ironically or not, I have no practical problems with it, simply because I’m not using big UB horns. My upper bass channels are much more compact – 4 very massive 15” drivers with no horns. Their integration to my main widerang...
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I built a prototype of a Avantgarde Trio in newspaper and tape, with the Beyma CP380/M, Community M200, and the Fane S 8M, and I also used a Behringer CX3400 and a 45 tube amp. CX3400 is soon replaced by digital active XO.Paper may have made the midb...
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Dear Malinowski,The basic idea for phase plugs is that the sound from all points of the diaphragm should arrive to the throat at the same time. For the midbass horn we only used a simple one slit plug. If you feel up to it you could make a more...
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It looks like the Cogent boys came up with a new design. It is good that they are keep looking, even thogh they unfortunately are restricted with their desire to stretch the use of their drivers over too wide bandwidth….
The new Cogent setup lo...
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Hi Romy,Got my new Le Cleach tractrix horns (320hz) for the Vitavox S2's. I'm x-ing over at 600hz with 2nd order 12db/Octave which I know is barbaric for you but it is all I have for the moment. With the new horns the S2s are puttin...
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I’ve never heard of the “Hut on Fowl’s Leg” before. It is an interesting folklore tale. However, I still laugh when I see these horns. Other than being completely ridiculous in appearance, this guy didn’t even bother to time align any of the drivers....
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Again, moving the speakers last night I felt that I really would like to move the speakers closer to the mid of the room – the further the speakers from the back wall the more interesting sound. There is another “again” in what I felt last night. I t...
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KOTriode, …no one questions the usefulness of having a regulator and the ability to adjust voltage and current independently. However, it is necessary ONLY during a design phase and sine you have figure out the optimum operation point for a given tub...
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[quote user="NBC"]Hi Romy,1) What dimensions for 1808 baffle would you suggest? The Golden rule is: 1.6 height, 1.0 width, 0.6 depth. 2) Is floor-firing vs. front-facing cone useful or preferred?I wouldn't use the 1808 or 8196 in ...
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Bruce told me last year that he started to manufacture 80Hz straight horns to replace his 80Hz. I was under impression that you refer to it.
Anyhow, if your midbass horn is fine then one of the most effective ways to get it even better is to reduce...
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This is a guy from Japan and he made his 4 ways GOTO drivers. What I like that he made midbass horns with smaller throat then Johan Dreyer. This Japanise guy has tall room and he made his horns to have smaller throat and to have a curve up – that is ...
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Keith,You would never know from the data how those upperbass driver will behave in horns. The 55Hz of air resonance (if it is true number that always not the case) is a good number for 60-70Hz horn. I really would like to know the max amount of mm th...
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Well, Klaus, they were the only 3 cones that I ever seen for S2 driver: metal suspension, white plastic suspension and clear plastic suspension. You might have something else - it will be interesting to see a picture.Regarding what you are tryin...
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Thanks for the thoughts,I was just on the phone with a guy who sells prototyping materials; we discussed the idea I had this weekend... His opinion is that it should work. If so, it will really make the process much quicker.Romy wrote :"......
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Hi all!
I am also big horn fan from Latvia.This is my first horn project Prelude.1" high frequency driverCrossover 4000HZ2" midrange driver crossover 500Hz15" midbass crossover 100Hz15" Tapped horn (is not yet complete)Unfortunately midb...
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Romy,I am considering a midbass channel similar to that you are currently using. The plan is to use the channel as a form of EQ to help rectify a large circa 40Hz room mode...bass cannons below the mode, midbass above the mode, and upperbass horn ab...
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Josh, I am sorry, I
missed from you original post the fact that you delay the back tweeters. It just
looked and it is there, I just did not registered on me…
Yes, the play with delayed
channels is very cook thing. I did play with 10-30ms delay ...
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First off, let me say Hello to all fellow Audiophiles!
I'm an audio-obsessed 29 year old currently living in the United States (Minnesota), and have spent years perfecting HIFI systems in vehicles, and over...
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