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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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A few months ago a reader of my site contacted me and informed about that he found a very interesting driver, that his is using and he is very excited about it. The driver is JBL 2490.
http://www.jblpro.com/pub/components/2490.pdf
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Somebody from AA was asking about electromagnet. The subject pup up here from time to time but this time Bruce Edgar uploaded an interesting comment. Bruce is not a typical AA Moron and if he says “inaccurate things” then it is not due to ignoran...
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[quote user="haralanov"] Yes, you are right. Power – you have almost unlimited power. Dynamics – you have as much dynamics as you want. But there are a lot of associated problems with that kind of dynamics. The following illustration is taken by ...
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I was thinking and thinking last couple days what to do with
my lower midbass situation. I do need to use 2 drivers per channel with 100dB efficiency
to get the dBs I need to match Macondo and Milq’s bass channel gain. I do want to use Vitavox 15”...
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I have always thought my old Altec 802's with the concentric ring phase
plug sounded better than my newer 802 G with the Radial phase plug. If i
had to describe the difference i am hearing i would say the concentric
ring style just simply sound...
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Sean, this subject is tricky. You might like your original Altec 802 better than your new 802G. (I did not
even know that they do new version). I have no doubts about your preferences
but how sure are you prefer the sound of the old driver juts bec...
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[quote user="Romy the Cat"]Do not worry, you won’t be happy with your new speakers
as well. It is a little dirty secret that no one told you yet: speakers do not
give happiness. [/quote]In my case only speakers can give me happiness, because with e...
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Hello Macman,Nice horns, I like that you finished everything properly! I am getting tired of seeing piles of horns.I think the ringing you are getting from your midbass horn is that the throat reactance is not balanced. How did you calculate the ba...
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I would like to thank you for taking the time to give me a very satisfying answer and explain in detail your views on the whole subject and give a little more insight in to how you do things. Yes I suppose I really knew all along it was coming and w...
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This Sakuma’s is kind of BS. What I mean is that it has the appeal to be “good thinking” but only in the realm of marketing hype, something that the editor of “Direct Heating” had created around Sakuma. The reality is that the Sakuma’s TWO channel Am...
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Martinshorn , that for feedback, as I always preach:
the bad result during audio show does not mean anything, only good results
count. You see, there are zillion reason why during the show the sound might be
horrible. The inadequacy of the people ...
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[quote
user="Newtohorn"]Thanks for all your inputs. I take Romy's
words that the Olympian sound is not what customized horn systems in horn
enthusiasts' room sound like. Of course, I wanted to hear the opposite,
that enthusiasts here get the so...
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I did a lot of listening lately and observed that there is
something in my sounds that I do not like. Over the years, one of my primary indications
of a properly built playback was the sentiments I'm getting from my recordings.
One of them is ...
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I was pointed out to Steve Guttenberg’s video “Meet Joe, and
his amazing DIY horn speakers” at https://www.youtube.com/watch?v=EFoCVw2AJRc.
I would like to provide some commentary regarding what I
observed in there. Steve Guttenberg is an in...
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Lately I have been thinking a lot, trying figure out what I
am and where I would like to go with Macondo. The Macondo base, the horns isle
is still there and I have no motivation to change anything. The conceptualizing
and assembling of what I hav...
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The kids are growing up and twins sleep fine and walk already.
So, the Bessnow’s household is calming down, a live-in nanny for sure helps…
With more time at my heads I am trying to finalize my playback in our new home.
I spent a few hours today t...
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[quote
user="martinshorn"]But I replied assuming such a question is raised
by someone who has experienced DIY background and basics how to „design sound“.
This is of course a precondition. Of course we can’t list a „kit“ here. If we
could, the VO...
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Hello, Pawel.
I never heard nether about Onkyo HM-300MK2 or about
anybody who use it. It looks like it is one of many obscured Japanize drivers,
and they made plenty of those. A simple googling said that it has 2 inches
voice coil, duralumin di...
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Romy, I have been trying to explain to myself what happened and how I got to it and trying to recreate this wonderful boiling point.
I tried to make a write up of all the steps needed in order to make it happen, but it is ever so elusive. I ...
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My amp is a stereo 2a3 / 45 .
Lately I find my self listening in mono because of the area of my apartment and because I can focus better on the reproduction .
So this is not a stereo / mono discussion , just better for my needs .
Im planning...
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Thanks for your comments, Romy.Edgarhorns weren't an obvious choice. Many horns never worked for me. The Avantgardes left me cold. So did the single-driver crowd (I just don't get it....), Altec VOTs, PA systems, etc. But there were some systems ...
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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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One of the challenges I see for my midbass horns is to minimize hf output. The goal is to operate the horn in a bandwidth where it can cross to the higher horns, and have each horn function in their best sounding manner. My drivers are Altec 515-16...
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More technical data :Designed around the Altec 288 driver
and Altec 515B woofer, the new Latour, standing for "London western
type", has a custom designed and optimized crossover network. Overall
frequency response is rated from 30Hz to 20kHz with...
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I have to admit that I hate the Altec 604 in the same way I hate a few similar drivers other companies made in the same topology. Jean Hiraga made a loudspeaker around Altec 604, I have no idea how it sounds. People who read my site know that I d...
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There is a guy named Ad in Netherland who makes looks like aluminums (but I am not sure) horns for 1.5 inch compression drivers. The first picture it looks like an exponential: W=39cm/15.4Inch. L=45cm/17.7Inch.
I do not know if Tractrix and the Fren...
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Hm, very different and very opposite result, interesting. Are you using the same S2 diaphragm as I do – the metal suspension? If yes then it would be the only one explanation that I might come up with.
Sometime the compression drivers with horn form...
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Dear John,
I hope you don't mind me writing directly to you. I've been posting on Romy the
Cat's audio boa...
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[quote user="slowmotion"]I'm not so critical as you to open baffles for midbass, tho, in fact I think they can be made to work quite well, if one doesn't have the room for midbasshorns. [/quote]
You suggest that open baffles might be more successful...
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CATEGORIES: 2100 - Mid and mid-bass cone transducers 2200 - Low frequency transduc...
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