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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="Romy the Cat"]
clarkjohnsen wrote:Folks, in case you care to learn the truth of the matter, AC Polarity is the subject of Chapter 7.5, pages 63-66. Its connection to acoustic polarity is established there too. That Romy should so boldl...
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[quote user="Romy the Cat"] I plug it for a first time today. It looks like it is sensitive like hell and I did not hear any titanium problems on it even without low pass filter. I do not have infrastructure now to look into it further. [/quote] I ...
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In fact I posted a question to Wolf and he replied that he can produce the coil of any voltage the customer would like to have. That is good. The below is data by Wolf von Langa:
MI-1428 - original version of the RCA 1428 - especially made for...
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Paul, one of the reasons I went for the Orelo was because it's as close to "plug 'n' play" as I can imagine a speaker system being. So I'm not very knowledgeable about its detailed workings. What I do know is this though...There are 3x 15" bass drive...
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[quote user="morespeakers2"]I thought Romy being very familiar with the S2 and also familiar with the 288 could quickly simply state a few simple observations between the two or just be honest as say he doesn't know, doesn't care, or doesn't remember...
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[quote user="Reno"] ok. maybe we have a different understanding of "electronic equalization". We do not use active (i.e. electronic) equalization in the amplification chain. There is of course some equalization in the passive crossover but I real...
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Bill, when you were at my place I use two PP2000 running together as at that time I did not discover the effect. I was running my MF at -2dB and my tweeter at -1.5dB. As now I use one unit and I return back my MF and HF channels to the level as they ...
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Vasyachkin,
I have different view about “modifying products” as any product is always implying something very generic but I have my own needs. Probably not “modifying” but adopting would be better but it is not the subject in here.
If you read my s...
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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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Well, it unquestionably much better, still I am afraid that they are trying to spread one ass across two chairs; I will talk about it in the end. The change from what was before was around the frame and upperbass horn. It looks like the guys are tryi...
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Thanks, Eduardo, very interesting. The YL 75000 has no phase plug and 70Hz with 1” trout. It look to me like a conventional diver. Which beds a question: if to reduce compression with our classic drivers, loose plug off and reduce power then can we ...
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Johan, I understand what you are saying. This is kind of James’ barn thread and if you do not mind can you share with him one thing, I think that many others, including me, would be interested to learn the answer to this question: What did you gain g...
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I see, this is very different question then you initially posted.
Ironically the subject was discussed years back what I was fighting with S2’s “fuzziness” at very top.
I still do not feel that there are any 'rule of thumb' in it, there are...
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Hello Angelo,
Even though it may not be a good idea to use a phase plug in a straight Upper Bass horn, I did find the information educational, and just wanted to thank you for the link. Thanks also to Romy for his comments on the subject.
The d...
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[quote user="cv"]This is but one reason why I'm asking Martin Seddon to make me a pair of 160Hz horns...[/quote]Another problem….
Chris, be carefully with those large 160Hz horn and S2. The guys who make then have no instruments to center the mounti...
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Dear Romy,
well the horns are actually not designed for HF. The intended working range is up to 5-700. But since we use low Q, only second order filters we want to have a rather large overlap in the crossover region and a fairly even pattern over ...
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I am not a big fun of Dvorak 9th under Ancerl. I’m not big fun nether the orchestra’s balance nor the recording quality. Anyhow…
I do not think that that you need to worry PH-77’s accuracy of curves or the comfort to switch them. It looks lik...
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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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If you think that Jews on Christmas only abuse Chinese food and watch endless movies then think again. Since obnoxious stolen Christians my beloved Christmas tree a few years back some of the Jews torture compression drivers during Christmas’ eve...
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[quote user="tuga"]I can't find a/the post(s) where you describe the advantages of using a 4 inch throat. Stereo-lab makes both 4 and 8 inch throat 140Hz horns but I don't think they could make an 8 to 4 inch adapter... [/quote]
With Fane 8M you wou...
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I've continued thinking about construction since posting my previous laser-cut hallucination (titled "Painless mid-bass horn"...). Thinking mostly about the transition from round driver to rectangular horn... I don't know how...
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Hi Romy Indeed you sound a little racist, but i think we all have our prejudice. Funny enough, i didnt recognize nor cared, spotted the horn with my eyes, went in and listened.Now, read this carefully: I listened to the system with closed eyes, for ...
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I would like to share some ides what I would like to do in my monitor project. This are just intention and I did not try to put it all together. Probably I will do it with the next few weeks.
I’m planning to use the Celestion SL-600 enclosure ...
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[quote user="Dominic"] i thought of it as soft and chalked it up to not being as strong a motor as was needed and begrudgingly accepted that perhaps 'field coil' did not mean 'powerful motor'. I'm starting to think otherwise…[/quote]
Yes, it is exac...
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[quote user="steverino"]However, if I stuck the balun between the SDS and the
turntable (ie the turntable plug into the balun and the balun into the SDS)
then I heard noise reduction Without a negative effect on the sonics. But note
that the SDS –...
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Romy wrote : "If someone discover a 4-5” driver that can have the same Syrupy Sound as the Red 10” then please let me know" I will be trying some older alnico drivers in the Mid-Bass horns (the first pair should arrive in about 2 weeks time). I have ...
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A phase plug in J-horn? Hm, OK, whatever…
Dresden, what I find disconcerting is that you are talking about “design” without taking or thinking about your sonic objectives. That is all reminds me very much what the folks at diyaudio.com do. T...
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MINGSU,"Time-aligned
is an impossible task from my point of view. How can one perfectly
time align different drivers? Align to what precision? mm, inch, cm or
ft? 5%, 10%, 30% time align? Align to the tip of the co...
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hi maxx
Just found this by accident. Had similar problems in my K-horn when i started to use it higher.
I found out that the 8 Liter prechamber caused the resonance in mine about an octave higher than you seem to have yours.
That...
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[quote
user="martinshorn"] Indeed you sound a little racist, but i think we all have our prejudice. [/quote]
I do not think that it is racist
in any way or form. Racism is a prejudice against a race in my case it is prejudice
and historic...
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