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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"]. What was your resonant frequency after loading? The 416 are 25Hz drivers, after loading and with two drivers it might be deep in teens. From the picture it looks like you keep the back chamber of extra large space, or eve...
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After much consideration I desired to get my test crossover. I chose when for Velodyne SMS-1 that someone pitched at this site before. The unit has 6, 12, 18, 24, or 48 dB/octave low-pass filters that I need and runs up to 200Hz. I do not think that ...
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May I at least ass-u-me that you plan to high pass these horns? If so, go ahead and figure that in, too. In any case, just looking at 70', impedance is not the only number you'll be running up, and the last place you want this load is for LF chan...
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Paul, you are missing the point. When I said about “tilted” response it is still a "flat response". If your 10kHz-2 octaves has minus 1-2dB over your 30Hz +2 octaves then it is VERY flat, way flatter than normal deviation of most playbacks out there....
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Ming, how are you doing? What I mean: how it your bass horn projects doing? We interacted in November and as I understand your horns is few month old nowadays. As now, your initial euphoria about the Goto bass and Goto horn should be gone and you sho...
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Get in touch with Erik if you're not familiar with volvotreter web site already. His Trax calculator includes CAD numbers for profile drawing.I'm not sure how useful it'll be for your friend's CNC router. Check out www.diyaudio.com and AA for JLH Joh...
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Thanks guys for all the suggestions.Klaus wrote :"...there are a lot of questions, but if one thinks to much, then he will end up like this lynn olson, pages and pages of endless talk and no horns..."Very true, I need to get cracking, but I'm&nb...
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AlloWell this could be very interesting.... the Melq driver (at lower voltage) direct coupled to a 6C33 cathode follower run at low voltage, high current. Vincent looks like he's running about 80V 500mA, though in this case you'd need to use a r...
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There's a big difference in 40 - 400 and 90 - 400 Hz. 40 - 400 might also be stretching the bandwidth which will be horn loaded? (FLHs by nature are narrow band, 40 - 400 is over three octaves...) And, besides the coloration Romy mentione...
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No, I have not pushed it hard at all: I am just trying to understand it in the mean before I look at the extremes. Though 100db sensitive, the SH50 is designed to handle 1000W or some such absurd power, so it is surprising that it works so well. It i...
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I really do not what is gong on there and why. Thorsten's comment that line-level crossovers do not act like speakers’ level crossover confirms what I feel and what some other people suggested me. Yes, the reactance of the crossover component, the in...
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I have the CD but didn't get a chance to listen to the B9 effects you mentioned yet, but all the 515Bs and 15" Vitavox I have heard were in larger vented boxes. I think of the dryness you told of as part of pushing a paper driver down in a sealed box...
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Ronnie,
Arranging the driver in a line array is a fierily straight forward thing. Also be advised that the arrays will less likely work across a short wall, and you need to use a long wall. Generally it is imposable to advise anything as any rooms a...
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So what's wrong with the 6SN7, apart from the high prices fetched by good ones? If building a 2A3 amp for personal use, it seems a likely choice. I do not know the 6E5P, but I do love the tone of the 6SN7, and I especially like it driving...
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Snubbers are more effective when there is no inductor - just a diode/capacitor rectification. That's when they become useful. To snub out the ringing caused by leakage inductance. Keeps the "buzz" from coupling to other areas of the...
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[quote user="Romy the Cat"] I did not expected that the main impediments in the super Milq project will be the organization (sound) of the filters, particularly the high-pass filters. [/quote] After some experiments it looks like the input stage of t...
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The idea just came to my mind and it is in a way brilliant. It is not implementable in my playback because my Injection Channel is driver by 1/6 of 6ch Milq and because my Injection Channel is high-passed. However the idea is still conceptually very...
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Looking at what's currently easily available, I was reminded once again how desparate the SS amp situation has become. Of the offerings I saw, I might consider (in no order of "preference") Halcro, Herron, Edge, Ayre, Lamm, or the Pass Ale...
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Romy, I suspect that 200 Hz high-pass will be too low for that driver, even 2nd order, and almost certainly with just 6 dB roll-off. I think more like 500 Hz with 1st order, and might still require the coil.Yellow-type drivers take on and ...
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I got today the Fostex F120A with all latest and greatest modifications on it. I put is in a temp .7 cu feet box with pretty much open back to see what the Fostex will be all about. I drive it from a bad consumer SS, composite-chip Hitachi amp from 8...
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Romy, you have said part of the Magic is the interaction between the Red and the Scanspeak "passive radiator". Could it be that reducing LF to the Red would decrease the "potency" of the intraction between the Red and current passive driver? If yes, ...
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Romy,
Thank you for sharing the link!
The second part is better!
Scooter
We only use the Beringher for bass under 100 hz, driven by the main amp.
We tried a lot of different solutions, including analog active xovers, the DCX is cl...
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Cybernetic phase blah blah blah...I (barely) managed to resist commenting about those pathetic little 4" drivers huffing away in that long narrow box, but I can't pass this one up!Just the buzz-words alone; it's got to be a translation thing!Too abso...
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Jordi:As another paralyzed (I have a problem in my leg), deaf (problem in my left ear), coma (I take a downer everyday for my anxiety problem) and nearly unemployed (my 2 self-employed business barely covers our household expenses along with the tuit...
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Hi Romy,Your findings are interesting, I expected TL0 and PC with Linx16 digital output to be close. What digital output did you use on the PC at that time?What does Linx16 card do in your tuner recording set up? Do the digital A/D signals only ...
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[quote user="Paul S"]This $5 discontinued Belkin blue cable may be as good a piece of gear as I own, I kid you not. Among other things it does a great job of limiting noise without screwing everything else up. [/quote] Exactly, it acts in a way as a ...
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The paranoia has long since set in: I am convinced that career record shoppers have already gotten to and picked over everything any place I am likely to think of to shop. I very rarely find anything really great. But it does happen occasionally.Ho...
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Lets pray to God to create more and more of these designers, brands etc. As in shortage of good comedians around the world they supply enoughmaterial to keep us laughig.Read this one which was wrote by Paul Messenger of HIFICRITIC April-June 2010...
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The powerful PassLabs are incredibly bad amps and Mr. Pass well knows it. PassLabs has a series of very low power, SS, class A, single-ended amp and they might be interesting. I personally never had them and I do not extend a lot of trustworthiness t...
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well fine, my X350.5 does 50 watt class A, and of course in push-pull. I use it with 120 watt max rated 3 way speakers of about 87 dB efficiency. You can see on the 350.5's centre instrument dial if you go out of class A. If I go out, I usually fear...
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