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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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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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I don't know the full story of how loudspeakers went from field coils to permanent magnets. I believe that ultimately it was dictated by the price and availability of Alnico. Eventually Alnico became cheap enough to make similar or higher strength ma...
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I have posted about some of my recent experience with longer "naked" HF ribbons in Romy's "Water Drop" thread. Here are some observations that relate these drivers back to the ML2s, along with some other recent ML2 trivia.My speakers are listed...
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Yes, you are right it is rather my negative prejudges and I should not proud about it. It perfectly possible that Bend is a fine performer…. Still, it is a transformer and no mater what you do is a band-pass filter. It is still inductance at the bott...
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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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[quote user="N-set"]
Hi Anthony,
trying to copy a known good solution - too little time for experiments recently.[/quote]Well, Romy had great results with the Placette and his Dannoys, so that is the known good solution as far as I am con...
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I started in hi-fi with LPs and I have never stopped using them as my principal source for hi-fi. Some time ago I decided that master tape was better than vinyl, but I could not afford to go that route; so I settled on the next best thing: a cartrid...
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It seems that I do agree with you about the sound of compression driver midbass.. at least from what I have heard in my own room.. I have heard the big ALE drivers you mention on a bent steel horn similar to what ALE builds, but of the owner's design...
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Klaus wrote :
"...maybe i'm wrong, but as far as i see it, the whole thing has to be stiff on the outside. will make the horn in a way to survive a "explosion" on the throat, the pressure will try to expand the horn to the outside, so it should ma...
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After going through the anal pains of the Image Gallery upload (it is sohuge now that my browser slows down 10000x times loading it and it ocasionally kicksmy router out of this world; can we do something about it?), here are some picsof my assault o...
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[quote user="Antonio J. "]MFA e-mailed me aknowledging that I was perhaps going to try the DIY way getting a "raw" transformer from S&B and offered me assistance. The "problem" is that their unit with a gain selector and load selector is way too ...
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Jessie,
Perhaps if you search something in the throat jungle you might fish some interesting results. You see, optimizing the driver to throat transition you might get some HF out of upper bass driver. But besides getting more HF there is something ...
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Many years back, before Bent Audio that repackaged the original Stevens and Billington transformers even existed, and when S&B step up transformers was hard to get the person who designed S&B transformers sent me a pair of his transformer...
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I have been running around this design for a couple of months...I re-designed it just now to change some numbers according to your post. The main idea is to have a lot of posibilities in a huge horn:It is formed by conical sectors th...
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[quote user="jessie.dazzle"]Rakesh,Two things I see that may or may not turn out to be an issue:1) The relatively narrow stance of the front wheels; depending on how heavily you load the top of the frame, stability could be a bit on the limit when mo...
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Stefano,
I do not have any strong objection regarding to what ALE do. Bent bass horn are more evil then straight horn but considering the small throat of the ALE drivers and their desire to make it to work low the length of the horn become to...
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Let me to explain how it started. It is well know that being a Dentist is in a blood of any Jewish boy and Alon Wolf was no exception. When he was little, the local kids teased that he might grow up without a dentist license and the little Alon was r...
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[quote user="Jeffrey Jackson"] It seems that I do agree with you about the sound of compression driver midbass.. at least from what I have heard in my own room.. I have heard the big ALE drivers you mention on a bent steel horn similar to what ALE bu...
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I think I have had enough time with this phono stage now to make a few remarks about it. In keeping with the spirit of this website I am not recommending this component, just reporting on it.
I got my unit off AudioGon after keeping my eyes pe...
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Dear Romy,
I truly am sorry to hear about your loss. You certainly do not deserve this. If it is any consolation you might like to check out
the following website for an insight into the Bent transformers in relation to Expres...
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[quote user="guy sergeant"] Of all the manufacturers you could be poking fun at you've chosen two who actually care about what they make and sell. [/quote]
I do not think any manufacturers “do not care about what they make and sell”. They all do, or...
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[quote user="rdrysdale"]Our bass driver has a 12v field coil motor, it developes just over 20 kilogauss flux density using a low carbon steel pole piece. The exit diameter is 4 inches at the moment. The diaphragm is 6 inches in diameter and made of a...
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[quote user="guy sergeant"]http://www.audiounlimiteddenver.com/
Focal Utopia EM[/quote]
You are right: The Grande Utopia is one of the names that very much in the mainstream and have very much pre-inclined exposure in industry. That all will assur...
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National Philharmonic of Russia in Escondido by George Weinberg-Harter
Once I heard a radio interview with the great Russian cellist Mstislav Rostropovich, who had left what was then the Soviet Union to become conductor of our own National Symphony...
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Steve Schell pointed to Bill Woods’ site aka RCAfan.
http://www.acoustichorn.com/
I do not know the guy but the site looks attractive. Some of his old large horns are interesting as so on… however, what make me to wonder is the horns that Bill Woo...
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A site visitor pointed me out the I never made an intended write up about the David Haigner horns. I just forgot about them… OK, let analyze David’s claims and his Alphahorn design. I would say right the way that I do not like the Alphahorn’s id...
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Yes, all
this is in a way correct, but it depends on the abilities of a given person to
see the objective side of the Reality, or at least to try to be as objective as
possible. It is well known fact that the reality is very subjective thing,
bec...
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Opening nights, opening minds
Innovative new conductors in LA, NY challenge the BSO to do more
By Jeremy Eichler, Globe Staff | October 18, 2009
Opening night concerts at the most esteemed orchestras are usually a bit of a ...
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CATEGORIES: 2100 - Mid and mid-bass cone transducers 2200 - Low frequency transduc...
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