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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"]
One more tip. The “least dynamic compression positioning” mostly managed by upper bass and bass channels while in the “imaging positioning” the MF and HF channels play more dominating roles. Therefore, if you use a typica...
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Merry Christmas!Nice woodworking job on your speakers.I have a couple if questions:Why did you select the drivers that you did?What made you select one horn for the midrange but for nothing else?What process did you use to select the crossover points...
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I was suspecting that, when I get a "punchful" sound, the stage gets more compressed and flat. Widening the stage yields a compressed sound, specially in the low midrange-upper bass. I'll try, but I guess these speakers won't ever be at the DPoLS, al...
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[quote user="ayebee"]I’m probably suggesting the obvious, but have you tried adjusting the crossover component values on the fundamentals and MF-channels? On the fundamentals-channel, increasing the inductor-value, and decreasing the cap, so that...
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A little update on the Milq amp.After sorting some of the problems with the amps transformers (see posts above ) .I now have two mono blocks operational that have about 700 hours ,I'm so glad hour meters were installed .Filament voltage is spot on 6...
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I have re-read your post and your tone sugests that field coil drivers wi be used by manufacturers purely for their marketing appeal and not for any sonic improvement, Thomas Woschnick has just taken delivery of a pair of Cessaro Beta's which u...
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Once again, let make it the last post off the subject of the 5-chals Milq.
I think it make sence to start from 370Hz-400Hz horns for S2, targeting it for 1000Hz. Then the lower bass horn, for instance the 45Hz, however it should have a chamber of m...
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hello kids, a few weeks ago i started my hunt for a pair of speakers....i've been attached to my big system with a pair of headphones for the past year and feel its time to get some speakers to listen to music with (plus, i think my ears are now...
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[quote user="drdna"]It is funny since they are identical digitally recorded tracks you would think they are the same. I would very much be interested to know if the binary code is identical or not for the two tracks. [/quote]Drdna,Do not even s...
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First of all, thanks for additional detail. As mentioned I can speak only for my Fidelity Research XF-1 (30dB). Loading it on secondary as you mentioned, it ALSO damps the trannie - result in my case: less resolution. Primary loading is MUCH more sen...
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[quote user="Romy the Cat"]
6) Ok, the first half elephant in the room – the dynamics. Believe me or not but PP3000 is more dynamic then PP2000. It was very sensible from the very first note that I heard from the PP3000. I do not know what to say ...
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...if you want to use it "pure" as it were, without any in-between equalising. Or you could tailor the amp accordingly. I would see a lowther working well mid-high rather than mid-bass.My experience is limited, however, to EX-4 used with wizzer in a ...
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[quote user="MINGSU"] Of course, if the space is not an issue, time-aligned installation will be the only way to do. But, in a real world, that is not often the case. One has to live with lots of limitation, so time-aligned might have to be compromis...
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Hi, Tim. This is difficult question, and it is difficult in it’s abstractivnes. I really do not understand, or understand but refuse to acknowledge the validity of the word “respectable”. How valid for YOU would be a “reputation” of this driver if it...
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Hello Romy,Thanks for the great explanation, I'm a newcomer to horns, so please treat me gently ;-)Very interesting info, so in essence there are two limits, the real "hard" limit, where you risk damage to the driver, and the "sensible" limit, below ...
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Well, I screw-in today the S2 with filed-coil into my horn. I decided to drive it with 2.4A. I used a regulated DC PS and did not employ my prepared for this tusk 4.2 Farad capacitor: the voltage is too high for my cap. The current gave me a ni...
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Romy, I'll limit my answer to only speaker-related problems. 1) Still too bright sound. Not hard or edgy, just too much top end. My local guy suggested trying a single resistor in series, rather than an L-pad, to tone down the tweet...
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Romy,If making a Tractrix Horn to cover between 100Hz & 1000Hz do you have to choose an Fc or mouth size that equates to 50 Hz? I've often read, and don't know if its true, that tractrix horns actually need to have their Fc an octave lower t...
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I made today some interesting experiment and for the first time during my “fundamentals channel saga” I get some stimulating and very result. I find a way to mount the “low frequencied S2 driver” on the speaker’s axe way above the Macondo’s tweeter. ...
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So, with this horn I got the sound I was dreaming for!Currently system consists of 4 channels:1. RAAL Lazy Ribbon (14k+)2. JBL 2453 in 550Hz LeCleach (1200 - 14k)3. JBL 2490 in first part of own JBL horn (300-1200)4. 12" Supravox in 42Hz 2m long horn...
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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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Hi, George
First off all I have to mention that I use Max 282 as my “second” arm. I mean my best stereo cartridge I use with 3012 as I feel that it has more interesting lover bass and upper bass then 282. The 282 has slightly hollow and slightly bor...
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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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Richard, I absolutely agree with you that dipole provides a masking affect from many problems but along with illumination of the badly reproduced bass dipoles inject into music a common denominator of… dipolenisness….. and this something that ...
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Romy wrote:"...I use 10” but they have free air resonance of 19Hz. Not any of 18” drivers have such a low resonance..."Well if we can believe the manufacturer's spec sheet, it is possible to get close; McCauley claims a free air resonance of 20Hz for...
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Dominik wrote :"...Its sounds very good, but how to calculate oval profile. Above project comes frome tractrix calculator with one Roomy posted. There was "auto cad option".I found "auto cad guy" give to him those numbers and he make all drawings in ...
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How Wilson sounds:Pressure caused by non-linear bass squeezed through narrow port holes.Shining caused by the papery upper mids of a too high crossed 6.5" midwoofer.Sparkle caused by the metal ringing of a titanium tweeter.What Wilson does:Use st...
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The company address is the same as that for Precision Devices....http://www.precision-devices.com/...whose 10 incher (http://www.precision-devices.com/showdetails.asp?id=71) may have to do for those of us trying to build a upper bass horn without a S...
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Romy wrote :"...I have no way now to look at the right number but how I “feel” is you shell be arriving under 8’ of length and 40Hz cutoff with 8” throat. With 4” throat you will be looking at 12” or so…"For info : In my case, I am using an 8" throat...
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So, you use DCX 2496 for deals but not for crossovering and your crossovers are still on analog domain, right? Romy, I do everything in the digital domain so I use DCX 2496 as my crossover as well (but analog SS pro amps). I know you're no big fan of...
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