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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="rowuk"]What connection do we have considering the spectra of signals on the mains and sound quality? What data do we have on what part of "mains contamination" affects sound quality?.[/quote]No body knows answer of This question and you ...
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I have seen those old Telefunken, Siemens and some other 4” cone direct radiation tweeters, but I never tried them. I do not know thier signature and I do not know thier characteristics. The reason why I never cared about them, although I might be wr...
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Ok, I blamed the tweeters and MF drivers now the turn of the MF horns. The Mid Frequency Horns (I’ll them “MFH” from now and on) are the stinky like pieces of horn installations, and if they are not done correct then they screw up anything big time T...
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Romy,Point taken on the Ozone issue...do the catalytic converters in the units work effectively? I do not know. There are relatively inexpensive measuring devices for it.I agree completely that they sound different. You can see in my language that I ...
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For those seeking some decent compression drivers that don`t cost fortune, I can suggest to try the Eighteen Sound ND1460A compression driver. It has aluminum dome and polyester suspension and 1,4 inch exit throat. Does it sound like S2 ? Probably no...
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Hello Romy!Cessaro had severe resonance problems in their room, so I didn´t stay long here. What I noticed in the short time (maybe too short for a qualified judgement) was no stabiltiy broblems but less musical than the 300B last year. Hard to descr...
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Hi Saturntube, 40 Hz - 200Hz = wooo, woo, wo, - hm... Forgive me as I'm not talking about horns right now, but some sort of 4th order *acoustic* roll-off at 200Hz may apply with a horn as it would, e.g. with a second order cross-over in a box-spe...
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This is a good example of a CNC horn. This is the Carfrae I was talking about. MDF Upperbass horns are made in sort of the same way, but you do have to cut the angles on the Lathe. (or leave the steps like a The thing is it is not really tridimensi...
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Thanks Romy, very interesting thread.I've never tried the analogue inputs for the DEQ2496. If I want analogue in (which is rarely) I use a mytek a/d which sounds quite nice (but oneday when I get the time I'm going to modify it with i/p transformers ...
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Hi Romy,
FYI: The previous photo of some unknown persons "pile o' horns" appears to be:
Upper midrange: 1" TAD TD-2002 mounted to 650Hz Edgarhorn
Supertweeter: Fostex T90A or T925A.
Lower midrange: ...
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Hi Guys,An idea I've had for damping thinner horns in a more or less aesthetically pleasing manner is to house the horn in a Sonotube rigid cardboard cylindrical concrete former, and then apply the desired damping material inside the Sonotube.&n...
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[quote user="Romy the Cat"]I personally tend to use TT with heavy platters and I feel that if a platter is substantially heavy then there is no different how you would drive the platter. Put a platter of 100kG then you will never recognize HOW the pl...
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well i never thought i would be opening such a pandora's box with this combination.firstly,the drivers have the plastic surrounds(whew,lucky!i know the diaphragms are potentially harder to source than the drivers)what indicators or criteria would mak...
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[quote user="Romy the Cat"]Are any of those new tubes besides the Chinese tubes are single plated?[/quote]I believe they are all single plated.
[quote user="Romy the Cat"]I have bought some very nice 2A3 and 6A3 double plated from 1942 and 1944 an...
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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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[quote user="Tax"]The other options are to get some custom Amorphous OPT's <50R 350mA 8:1 as per previous posts, or to possibly pair Romy's LF tributes (for sale section) with a pair of Lundahl's in a two channel DSET configuration. The Avantgarde...
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[quote user="nl"] Within that horn-loaded range, the 210/515 type combo does reasonably well, and produces rather more inspirational midbass than most direct-radiator type strategies. There is a reason why these designs persisted for roughly forty ye...
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For my ears, the piano is rich in harmonics that change with playing volume BUT the only way to get a louder note is with the hammer striking the strings more powerfully which always is coupled to a louder "articulation". Violins and wind instruments...
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[quote user="Romy the Cat"]In contrary, at higher frequencies dipole might work fine, but no in bass. The Cat[/quote]
IMO you can never get realistic imaging from dipole.Here is a very detailed description of a dipole horn for the BG Neo 3.http://ww...
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There might be 'rule of thumb' here, but let me explain a bit better with some specifics.I'll have a Radian CD in a 425hz horn playing 800hz up to where it starts to roll off naturally at 6db at, say, 10K. And a similar Radian taking over from there ...
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I was there and heard it a while and then came back the next day to see if what I heard was true... it was.I talked with Allen Sides who was there showing his speakers and having a good time. It is a 3 way speaker, It has a 1" JBL compression driver...
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Was invited over to Romy's today. Spent two hours going through recordings. First, I hear differently from him. At my age,76, I had a hearing test that showed oversensitivity in the 1000 to 6000 hZ range, and quick drop off above 10,000 Hz.Second, I ...
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Romy, thank you for your thoughts. First off, my further thought on the system and specifically the implementation of the high freq section: Yes, the time alignment would be a challenge but possible. This is the main compromise, in my view but the le...
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"the SG-570BL with S-150 horn mid-low isn't good between 100 or 150 (the horn name;-))"Why will it expect to be good at that range?? The S-150 horn has cutoff frequency of 150Hz. The suggested crossover point is 200Hz from GOTO.There is no doubt th...
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I think I wrote In the past here, if you like the 10” Tannoy, why not try the 12” or 15”? The ones with rubber surround are not so good in my view (from CPA or DMT series as they have very restricted midrange) but the cloth surround Tannoys are wort...
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Yes, I do believe your exact crossover points would be irrelevant as well. I just wanted to know the span of your horns and drivers. I especially wondered about your fundamentals channel. You said it was narrow but what is narrow for you. Mine covers...
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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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KIS,I have owned the Martin Logan CLS's so I have some long term experience with electrostatics. To me it seems that the Acapella plasma tweeter (which I have heard for a total of less than 30 minutes!) had a SIMILAR quality of sound and yet a&n...
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would be finding midbass and midrange drivers with a similar character which allowed a good integration between them. Once I knew the drivers I might desing the horn (glubs, not so easy) and ask a skilled professional to build it for me, not impossib...
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Hi Romy
How was the lower midrange affected by the tweeter removal?
cheers, Jan...
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