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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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The RAAL’s Alex is trying to undertake a task of horn-loading of his ribbons. I am not a big enthusiast of the idea. I am not quite sure how Alex will combine in one driver the requirements of super-tweeter and a horn-loaded MF driver, not to mention...
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I was playing today with Stage Acompany SA 8535 Ribbon driver. It is truly 103dB sensitive little monster with crazily large 3 poll Neodymium magnet. I did listen the driver and there are some things that I like in it and there are some that I do not...
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Ending up re-amping my MF channel, I found myself at unexpected situation that I am not completely compostable with Macondo HF. It is not that the HF are bad but they were made to serve the interest of older, slightly softer operating single-stag...
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"I really do not know. It sounds to me as purely speculative subject. I do not know how RAAL ribbons sound and I am not a big fan of ionic tweeters as I never seen them to work successfully with any other type of transducer."I have heard them work ve...
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I don't think Romy is interested in surround sound and back channels, but he might well add a treble channel firing in a different direction than his ribbon tweeters, so he could try to get the space and "harmonics spread" he can experience from his ...
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Haralanov, as far as I know, Madisound does not offer my ribbon. Mine is not a stock Fountek, but it is a re-worked version of the old, discontinued Fountek JP2, a very narrow "naked" ribbon (ie,. no coating), and 97+ dB efficient. I got my Audaphon ...
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Like I said, Yoshi's gift of de-whizzered Reps got me thinking of better efficiency and more "weight".So far, I've got this:A pair of Eminence Kappa 18" in ~ 6 cu. ft BR box to ~250 Hz; de-whizzered Lowther DX-4 PLUS de-whizzered Reps ...
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Sure, Josh, I have done this, and it does work, as far as it goes. I have for some time used ribbons over 8k, because I like them for top of HF. This one is the only HE, dipole, HF ribbon I have seen. Most efficient HF ribbons are "housed" by thei...
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[quote user="el`Ol"]IMO you can never get realistic imaging from dipole.[/quote]
this is almost certainly true.
[quote user="el`Ol"]Here is a very detailed description of a dipole horn for the BG Neo 3.
ht...
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Romy, the HF part of the saga came up when I clicked on the latest post to your thread, hence this response (to the HF issue).I was wondering if you had tried just a small cap and coil at the ribbon, so you could just go ahead and use the FR Mil...
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Copper domes???The Lansche is one of the speakers I would like to hear. Is it sonically useful to cross an ionic tweeter at 1.5kHz?Is it true that a RAAL sounds more like an ionic tweeter than like a ribbon?Here is the CSD of the Supravox:...
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[quote user="Romy the Cat"] Andy Simpson wrote:
You raise an interesting point regarding ribbons but are missing the bigger picture.
With Romy's permission, I would like to invite you (and any other members) to listen to some recordings on my...
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So this amp would not have to deal with a crossover? One R and one L in the signal path, it looks like a headphone amp, maybe a dream circuit for a light piston, HF only, given no cap/coil load at the [ribbon] driver.What is gain...
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Thanks for the link, Romy.Very interesting.I need to run the numbers for 150 Hz, both high and low pass, 2nd order.Cement type resistor? Mills have gone to the dogs...Variable inductance OK (it might be handy...)?Have you tried s...
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I figured there would be difficulties. Thanks for the link, 117 pages of Russian, wow. Transformers came to mind. i did not know if such transformer could be made. 30:1? with wide bandwith. amorphous? I think i have ribbon mic transfo with ratio l...
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I juts looked again at the picture.Romy, please keep that naked ribbon away from the floor!I already mentioned about magnetic "stuff" floating around in the air (???), but the floor is a real no-no!No doubt you are neater than I am, but there's still...
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[quote user="oxric"] I have spent hours coming up with all sorts of weird and wonderful, but at other times too rigid systems to support the various components comprising what I modestly choose to call Le Horn (AKA Rakeshorns). I have more or les...
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To save people from researching the differences between Romy's and my systems, I'll note the principal differences here, ignoring our ongoing mid-bass projects, which will be different, but both are incomplete, so not yet in the picture.As concerns t...
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I think this is the one w/ the ribbon driver . Seems more innovative than contemporary Western Electric approach. That is the planar driver would not require a phase plug ?Western Electric's mid 1930's phase plug passes sound thru narrow slits and ot...
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The presence of this "bug" is clear. Apparently your Raal tweeter is somehow making your system more vulnerable to the issue than mine. I'll refrain from guessing exactly why, as I'm not familiar enough with the dispersion pattern of this tweeter...
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A few things I would like to say in context of Pham’s playback.
I will leave his infatuation with turntables alone – man like to collect turntables and he within his constitutional right to do whatever makes him happy. The problem that I see ...
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There should be an 111dB tap on the Lazy Ribbon, but perhaps you have tried that already. Other than that, perhaps talk to RAAL to see if they can improve the sensitivity a little more with a transformer change (or something else)...it might be quic...
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[quote user="Romy the Cat"]no one know
what it is and how it sounds but I can bet all money in my pocket that
with this size it has problematic HF, not to mention that being a ribbon
it sound worse with each Hz of lower extension.
The Cat[/quo...
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I'm currently using a pair of LCY-100K ribbon drivers with their built-in crossovers. While they are supposedly 2nd order electrically, the actual response I measure looks rather more like 3rd order rolloff below that point. No comments about their t...
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There is a German company called Expolinear ,wchich started to make ribbon tweeters based on bulgarian research .They make model RT7 pro with neodymium magnet and 100 dB /8 Ohm. I have a pair of their low efficient ribons (~88- 90 dB) with alnico 5 m...
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I have wondered about setting/tuning ribbon "tension". Of course it can't be touched, but it shouldn't be difficult to rig it, and it might not take much, if taken into consideration from the start.Best regards,Paul S...
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just would like to clarify the cost of this ribbon,xfmr. etc.the figure of 2600us$ is that for tweeter pr. only or complete with the xfmr.?i got a quote of 4000 euros +300 ship in jan./08.has the material cost risen dramaticly since you got yours wha...
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Dear CatThe best tweeters that I have ever heard is a plasma tweeter. It is not 3 x 3, but man they are 1000 times better than the previous best ribbon tweeters found in expensive Maggies.Have you seen or heard one?Cheers...
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It is a RAAL Lazy Ribbon with the integrated transformer doubling as DSET OPT. Surprisingly, I started with a 4th order high pass filter which has steadily migrated back to first order...and it works.Next step is to trial a biradial horn for a bit m...
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Looks like you still have the protective shield over the front of the RAAL ribbon in the video. Is the RAAL in use or turned off?...
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