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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Thank you Clark for your comment.Unfortunately, I think that you missed the point. It is possible that a power cord can change things. The description „better“ is a moving target however. Let us take for example a „full range“ driver in a backloaded ...
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[quote user="drdna"]Now fully five years after the original PP2000 was in my system, then subsequently stopped working and was sent back for repairs to the manufacturer. An unfortunate series of events involving the Chinese subcontractor resulted in ...
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[quote user="Romy the Cat"]You absolutely incorrectly, in my view, look at the data. The files of cause do not have the same start mark. Why shell they? I did not subtract one from another. You did in phase the files and did the subtraction but what ...
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El`Ol wrote: "...And what about the brute force method (room correction for the bass arrays)? [Digital EQ]..." Romy wrote: "...Actually I am considering something like this... I think the final result might use some of your limp methods but the EQ O...
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Wow, 6 x 15" drivers (!!!); though the curved profile certainly imparts rigidity, I'm guessing this horn must resonate more than a bit (no bracing until the mouth) -- but I like this thing.
Interesting, the phase plug-like device...
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Romy,It is interesting that you say that the problem is well known. I discovered this application in 1972, while trying to come to a solution for the sonic insults being supplied by a pair of Ohm F speakers. I eventually got them to act somewhat as W...
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[quote user="N-set"] Romy, would you elaborate on that more? Looking at his formulas it looks like higher mass gives lower resonance point, which is I guess desireable?[/quote]
Yes, the resonance point go lover but also the ratio of contributi...
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Howdy all,I have been playing with the Dunnoy concept since Romy discovered it and I agree that it is a very good improvement for Tannoy bass.Dunnoy with reverb injection is a phenomenal experience. I have gold drivers not red but I tried both 10s an...
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Well, as I do play trumpets professionally and own much more than 6 instruments, I thought that I would chime in.First of all, Romy, this is one of the most lucid descriptions of pitch that I have ever read! It also raises a point for discussion:If I...
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This is the project that I been thinking to undertake for years. I have motioned about in multiple times that Vitavox’s S2 lower region is very lucrative but unfortunately not exactly useable if the driver run all the way up, unless you are wiling to...
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[quote user="Romy the Cat"]1) A preamp shall have right Sound. I would not even comment on it. A preamp shall sound better then any other source a system has.2) A preamp shall have a remote control. I have expressed a well found view that a Remote Co...
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[quote user="skushino"] The sub arrived before the main speakers, so I practiced integration with my existing speakers. They are rated full range to 20Hz, so I expected little change in performance. Instead, what I noticed with the additi...
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OK, this morning I tuned the playback and did some listing, trying to understand what was the problem. Sound was not just bad but it was very strange, it was almost as a mechanical replica of sound. I took my phase meter trying to set horns in ph...
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[quote user="drdna"] Now I have had the EdgarHorns in my system for a number of weeks and have been moving them around the room and moving things in the room around to make them sound their best. [/quote]
If you are not familiar with horns then it u...
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Doing some further thinking by my mind that has “little understanding about the technology” I would like to share another concern that for my little mind does make since.
According to Mr. Donahue comments above playing the BSO files with a pos...
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***The proper loading value is difficult to say without knowing your system, as it is partly a preamp and ultrasonic RF issue as well as one that involves the cartridge and audible frequencies. Some cartridges have frequency abberations within ...
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I am on record as not liking back loaded
horns:to be effective at bass frequencies, a BLH needs to be as long
as a FLH would be; I've yet to see a BLH, with the possible exception
of the Tannoy Westminster, that actually has a long enough horn ...
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I see that Eugenie’s installation did not create in people to think about it, I think it is unfortunate.
Here are some important points of Eugenie’s installation:
1) Use instead of good drivers a large amount of mediocre drivers. By do...
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HelloI've always wanted to try an ESL as a horn driver:So I employed a hi power Koss 3-layer bass module cut from Koss "model 2" spkr.Polarizing voltage was low on Koss design so it was upped to 3kv w/ custom PS.Horn is old closet that had a trapdoor...
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I find that one of the most interning and stimulating ideas that you expressed was your experience with your bass horn
[quote user="Reinhard"] Midbass horns: are there are two 20 cycle bass horns which normally have 6,50 m in length and 3,20 i...
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symbiotic diaphragms were never used in the 19's. this may be part of the "bad sound" that this guy was experiencing.they used the 802-8g driver with ultra light epoxy and aluminum diaphragm that allowed hf response up to 22,000 cycles when pairedwi...
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Oh well I tried. I though I was clearly asking some easy questions about two similar drivers and the small details of what makes them sound different.
I obviously did not do a good job at this.I thought Romy being very familiar with the S2 and also...
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Coco, reviewing what Steve do I am not impressed with the direction he is doing now. The initial move with 5-way configurations was very good but not is the more delicate part start – to make all of it to sound right. A few comments that he and t...
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-Background- Enspired by Jeffery Jacksons system as displayed @ VSAC, I'm building a five-way horn system. Tapped horn for up to ~80Hz; w/ Eminence driver 65Hz Tractrix from ~80Hz to ~400Hz w/ fane 8"; 250Hz LeCleach from ~400Hz to ~2...
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Hi Romy,I believe you're right and it's due to the amount of LF the vinyl outputs, which may be more than the Bidat or the tuner do. It doesn't happen with all the discs, just some of them, which happen to be old recordings that probably have mo...
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Well the thing is that the returning wave from the back side of the driver, does return in phase, but "later" than the front wave, logically. This should add some distortion that I have not noticed, but of course and worried for as much as I am worr...
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[quote user="Kerry Brown"]My system is 4-way using 2x DEQX HDP-4 processors; 2xNuForce mono amps on the midrange horns and 6 x channels of a 7-channel NuForce HT amp that uses the same circuit. The DEQX processors function as crossovers, speaker 'cor...
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Wiki and google are not the best, but is a start:https://en.wikipedia.org/wiki/Compression_driverMass related horn issues:http://www.positive-feedback.com/Issue4/edgarinterview.htmhttp://volvotreter.de/downloads/Edgar-Show-Horn.pdfHorn loading:https:...
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Romy, is this a trick question? You are the only person I know of with time aligned, true IB ULF channels using 4 Aurasound sub-woofers, so who's going to answer your question? The first thought that came to my mind was how some "Big Music" composer...
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Of course you can do it all by ear, and I found that there were times when "my ears disagreed with the meter". As you note, signal strength and "quality" also relate to "mode" (such as Multipath), and not only broadcasts but also tuners vary as to wh...
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