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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"]
Still, I do not feel that amplification and architectural decisions shell be implied in drivers evaluations, at least during the initial introduction. Of course the driver shell be powered with a proper amp for a ...
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BTW, I forgot to mention one very important thing that might be very easily overlooked: the Imbedded Macro-Positioning Reality lives in three dimensions. It is not about the right, left, closer and further but also up and down. In fact the vertical p...
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If you can get Trios through the door, you can get Basshorns through.However, if you stay with Avantgarde for bass with TRIOs, two pairs of the Sub 230s (larger and much better sub than the 225) will outperform a pair of Basshorns. Three pairs ...
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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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Ok, Paul, this is the info that I needed, thank you!My Hagtech anti-RIAA has 50R output imp. at -60dB output for MC.Unfortunately my load resistors are soldered and in a very painful place,(for some reason the circuit did not accper the loading R at ...
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This there is the last in the “THE PROBLEMS WITH HORNS” cycle. The previous threads might be found at:
Problems with horns: tweeters.Problems with horns: mid-range horns.Problems with horns: mid-range drivers.
This would be probably the most contro...
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Romy if you feel that you are not loading the tubes enough put a 16ohm power resistor in parallel w the S2. this will cut the load line in half. It should be less wiry and stronger more weighty sound. Obviously you might experiment w values to find t...
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W,
Be careful with Milq’s LF channel. When you go for a dedicated LF SET and make the SET to operate very low then you need very precisely dial in the loading of your out tube with the behavior of your LF drivers/enclosure. Without know the very spe...
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[quote]a sufficiently-large last capacitor with using in input choke make the sound or transformer, rectifier and choke less relevant[/quote]I have to agree with Dima. The power supply has to be harmonious with the amplifier yet separate at the...
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Why not tap the filter choke (the 1H ahead of the driver) ie use a 1H autoformer... given the gentle loading presented by what follows, it shouldn't mess up other stages, no?cv...
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Wow, I mean really, really, really, really, really WOW!
A week ago I converted one of the Super Milqs to 5:1 loading and yesterday I converted another one. I loved what the last week converted amp did. It was very nice but today I put the entire sys...
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Romy thanks very much for taking the time to reply, presumably the design originates form PA design, literally enabling as many people as possible to hear the announcement, looking at the 'Everest' in Munich, the mid range 'horn' appears to be ...
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[quote user="Romy the Cat"]I never feel comfortable with corner-loading despite that the best midbass I even heard was coming from corner-loaded horns.[/quote]The lower midrange is the region that should make the most problems in a backloaded corner ...
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Interestng, I did not near horn load Electrostats. What the profile and what the mouth rate of your horn? What the resonant frequency of Electrostats you have before and after loading? Are you driving the Electrostats direct from plate or via a trans...
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Well, yes... I've not been to prison in over two years! Apart from keeping me off the streets at night, the results when listening to one of the 40Hz horns were, dare I say, encouraging, though I do hesitate to say so, as the "evaluation" was carried...
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Hello Romy,I guess I'll go for the 103R at a later date - looking at the specs on this one the loading is the same with a lower output,but I'm thinking it might handle those 25min + LP sides better from the opera world etc.Being half Italiano I need ...
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Very interesting.I spent a bunch of time messing around with slot loading under my druids, and then put 1 inch thick planks of wood I had lying around under them instead. Both tone and amplitude of bass improved noticeably (although please note we ar...
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Thanks, Wojtekm it sounds like interesting experience. I would mention that you use K-horns and with them the loading would be much more capriccios then it would it be with stand-alone infinite-baffle bass section. Did you seal the space between the ...
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Thanks for the great "outre" description, Yoshi; about as I had supposed from Romy's posts to date, actually, but just such a simple and understandable description and picture.So is this the original "Big 'Un" or the latest "Wedge", which we hav...
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The AudioFederation guy posted pictures from RMAF show with Cogent room. (The images are courtesy to http://www.audiofederation.com)
I was wrong in my previous post, as Cogent did demonstrate their loudspeakers with Ionovac ion tweeter. Yester...
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Marc Henry-In the 6moons write-up, you mentioned the Altec 515 re-issue not being satisfactory for your purposes on the Grande Castine horn. I presume the specific 515 variant you used was the 'g' type (designed for horn loading) rather than 515'b' ...
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To get 17W per KT88 in SE, I think it must be pentode or ultralinear operation. Triode-connected in A1, I think a KT88 can only make 10-11W max (plated dissipation limit is 44W.) So it probably uses feedback, but that is still not automatically a b...
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Yes, to “voice” the DSET is tricky and requires a lot of listening experience, or more accurately saying – it requires to make a lot of mistakes and understand own mistakes. It is not difficult –juts require patience. Still, if one “get” how DSET sou...
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Loudspeakers. For whomever who follows my dairies on this site and whoever has any real understanding what makes a horn-loaded loudspeaker to sound good it is know that Macondo Acoustic System is not juts the result of my DIY efforts or the John Hasq...
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I see, so I'd better get plain copper trannies from S&B directly, and plug into the EAR's inputs. I'll ask you how to set up loading with some resistors I guess. I said I'm a moron ;-)Regards....
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I think industrial grade Arcotronics KP172 (from RS components ?), film and foil. I use them also as output coupling caps (2x0,47u)
Other changes I've made, not commented in my posts here:
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Anthony, this is very interesting perspective. I associate my feeling in respect to sensitivity but you brought up the activity as something which certainly coupled with sensitivity. I do not think that we have a mythologically clean experiment h...
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Hi Romy I remember somewhere deep in the forum it was said, with a proper loading (cant recall what u did, feedback, or output resistance etc.. on the amp) you reached a point where the metal resonance got tamed and played better than the plastic. Se...
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Got the ultra low DCR toroids coil and pit them in use. Yes, it was very right move and they a bit trimmed the midbass tail. Playing with inductance and listening how the midbass decays (measurements are worthless in this case) I ended up with 4.8mH ...
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Hi Romy. Have you tried a large cone high efficiency tweeter? I have used a Saba 4 inch diameter 'green cone' 99 dB/w without a horn and found it to be interesting. Have you tried some kind of horn loading with such a tweeter? Steve...
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