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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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I very slowly started to convert another amp to DHT. For now I listen just left channel and in a striped down mode: no tweeter and no Injection, letting the MF to care the whole upper range. It is interesting to play different tubes in this mode. Fra...
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Hi Josh! That was basically my idea too. Although I read that the 12 inch driver loses directivity after 750. But I played around with Behringer dcx 2496, and I had the impression, that 1200 second order was the best sounding. The main reason for cro...
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A “casual” look at full range usually results in 3 or 4 way playback for standard dynamic drivers or horns. There are a handful of “full range” commercial efforts from Edgar, Wilson, JBL, etc that are doing similar things with the range of each chann...
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Righto then, I guess there is no reason not to try this, except that one of the original crossovers here is non-functioning (if I remember correctly), so if trialling in stereo I'll have to crossover in Melquiades. Should have the parts here to do t...
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For all I know, "alignment" is digital. And IMO, so far, "super hard" tweeter diaphragms have not lived up to their "reasoning". In fact, I would have to say the same for any direct radiators with "hard" diaphragms that I have heard to date. Agai...
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I have a 10KVA Isolation transformer that feeds on two separate 8 ga cables running direct from the house meters into an breaker into de transformer. This breaker is the one I use to turn my system on and off. The Isolation transformer recieves two ...
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I asked Alex who got those tweeter from him and he said that it was Stavros Danos from Cyprus. So, it was the Greek guy that we have meet before on the pages of my site:
http://www.goodsoundclub.com/Forums/ShowPost.aspx?postID=12129#1212...
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Actually Jorge brought a valid perspective: the HF that are crossed at 5K are not the same as HF that are crossed at 10K. The point is that in a playback that crossed at 5K one can’t talk about HF as a self contained expressive tool as in that type c...
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[quote user="rowuk"]Oleg has a lot of bad press in Germany for unkept promises and defaulting on delivery of product. Just keep an open mind next to the open ear. The best product only serves a purpose if it a) arrives and b) performs.I really like t...
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Yes, Paul, you are right that it has to be pointed that the frequency extension, by itself, does not guarantee anything (but that’s why I posted the thread in Audio For Dummies section :-) ). OK, now let’s see how the tweeters should be used (in cont...
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Hi Romy,I agree its a relief to hear finally someone describing something. Because all the mysterious dust around it makes one really curious :) And you cant hear them anywhere.So i got really "tensioned". Finally... and id like to share about it. As...
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Number one, that I'd like to run by you guys due to it's simpler nature and closer to reality execution is the idea I have been thinking about. No first hand experience with any of this.Say we use something like altec 1505b multicellular horn that sh...
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[quote user="noviygera"]Number one, that I'd like to run by you guys due to it's simpler nature and closer to reality execution is the idea I have been thinking about. No first hand experience with any of this.Say we use something like altec 1505b mu...
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[quote user="Romy the Cat"] The HF Range “F” channel: The 6E6P-DR at 30mA connected at tetrode. The filter is second order with Sowter 9858 Pultec MEQ-5 EQ Inductor 420/277/145/108/61/34 mH) and variable air cap. The variable inductance and capacitan...
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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 have been playing around with speakers for a long time, and things started snapping when I got into horns. I have a system right now with an upperbass horn from 140 hz turned form MDF up to around 700 hz, to another horn, and another and a super t...
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[quote user="Lx_"] Well, this is consistent with the behavior I have. I can hear electrical devices behind the PP, especially those of the switching PS type: computer screen, laptop charger, DSL box, printer, SAT decoder... Good luck finding electron...
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[quote user="Romy the Cat"]Possibly that you are right but it might be something else. My last year unit did inject back to power line a LOT of dirt. I just measured my new fixed unit and I was VERY surprised the it out back to the wall significantly...
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I've never understood the continual need to get equipment to have ever wider frequency response, to me (but then I'm a complete technonumpty) this just seems to be an exercise in chasing numbers to impress those that are impressed by spec sheets.&nbs...
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Hi Roman et al!Allow me to introduce myself. I have followed with amusement Romy the Cat for many years. He is ascerbic and ultracritical, but he does know audio. We share many tastes, like the Koetsu Onyx Platinum foir instance, on...
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[quote user="Wojtek"] Why can't you just stack them inserting new horn in between midbas and midhorn and keeping your original arrangement? Since your midbass sits on the floor, the tweeter still should be on resonable hight.I would transform your fu...
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[quote user="morricab"]…. putting the attenuator AFTER the gain stage has negative consequences for the sound….[/quote]
Well, yes and no. In the new 6 channels version of Super Milq I will be use 2 stepped attenuators: for Injection Channel and for ...
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The more I conceptualize my view about tweeters the more I like sound of my playback without it. The last night there was a San Francisco broadcast with estimable Tilson Thomas on podium and I was shocked with stunning SFO’s tone. As many times I hea...
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It was said in http://www.GoodSoundClub.com/TreeItem.aspx?PostID=3418
[quote user="Romy the Cat"]The HF channel of the Super Melquiades should be revised. Something is wrong in there and it does not sound as I would like to. It mostly relates to imp...
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Yesterday a guy come me from Atlanta to “see” my new installation. I kind of explained that I am not in “demo mode” now but he still came to “see it”. I have no idea what he wanted to “see” and I was kind of obligated to play something to him. I...
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I pretty much know what I need to do – I need to go for shaper filter built in my power amp. The second order I have no is too impactful to midbass, so I need to do for 2th order or perhaps for 4th and try to integrate it. Whatever it will be I thin...
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I’m glad you talk about geometry, but to respond to this I have to refer to other brands. I will only talk about facts and hope it’s not offending anybody.My basic point is: the flare rate has to be coherent right from the entrance of phase plugs. In...
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[quote user="rowuk"]I would be interested in an explanation why the topology for HF and UHF must be the same. I do not agree with this premise especially in 4 or 5 way systems where primarily the last octave only is demanded. [/quote] Rowuk, nobody w...
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hi. That’s a nice topic. I studied the VO like a maniac. For me there are 3 topics. First was obvious, easy, the horns. The bass horn for the ak151 is housing a rear chamber slightly open, giving the injector channel - that creates a lot charme, flav...
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