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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Scooter wrote :"...I think it is highly unlikely that a dedicated audiophile CD player will be beat by a home-brewed or commercially available music server...Upon further listening and research, it is clear that the $10 composite fiber optic cable I ...
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For those seeking some decent compression drivers that don`t cost fortune, I can suggest to try the Eighteen Sound ND1460A compression driver. It has aluminum dome and polyester suspension and 1,4 inch exit throat. Does it sound like S2 ? Probably no...
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Hi there
I can see Romy's face when he's trying to figure out Martin's time alignment strategy;0) I have Martin's 204 Hz horn with Fostex 208 E Sig. These horns are to be big to properly integrate with anything. They are OK with Fostex Lowther drive...
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Guy,
I do not know. In my past I made an adapter to my Micro motor to play 78s and used contemporary 78 cartridge and 282 arm and off the shelf phonocorector. I would not call this setup as something that was good but it gave me some opportuni...
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[quote user="George"]Have you tried recording and playing vinyl with your computer and the Lavrys? Even though the source is completely different than FM perhaps you might get acceptable results for some recordings?? Any success would be a great...
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What do you know: have built another Melq monoblock and now I have a operational pair. They do fine, measure and sound identical. I did not close them up and keep them for now without the top and bottom cover as I will be doing a few minor adjustment...
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Tubes came today. [quote]solve the problem of what we should test for[/quote]I don't think you can get one tester to do everything. Not only does one need the basic parameters such as transconductance, but you have shorts, gas, leakage, m...
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[quote]I really do not understand what conclusion you make by shutting the tube down.[/quote]I make no conclusion. It's just an interesting thing to watch. A good experiment. I was hoping it would be a clue for everyone here.Since t...
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[quote user="Romy the Cat"]Yes, they are Fane 24” bass driver with 24Hz primary resonance. I am waiting for the final sound check; the final is long time away. I will be testing today different back chamber size and different drivers. I have a few Al...
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Hi,this is my first post. This forum seems to be the hotbed for Goto discussion of some sort but there is barely any data but only a swamp of assumptions. So I bought a pair of SG-370DX drivers with S600 horns and measured them. Here's the frequency...
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[quote user="Petrasescu_Lucian"]
Thanks for the info Meiko41 !At what load (the percentage on the display) does the noise from the capacitors becomes annoying ? Do the fans stay always on or they kick in when you reach certain temperature ? I gues...
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Thanks for the wise, simple instructions, Roman, also useful to others, I believe... that's what I actually do since I - 'twas ONLY 15 months ago... - became conscious of the limits of my tuning-by-ear and got my IVIE IE-30 with Class A measurement m...
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[quote user="clarkjohnsen"] The sales guy was insisted about the super-isolation quality of adeptResponse but it is all BS, he did not understand what he was talking about. You are arguing that the unit can't be much good because the sales guy was ta...
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Mani, congratulations with Pacific.
You will not have problems to drive with balanced Pacific your single-ended amp. Juts buy a good quality XLR to RCA adapter or order XLR to RCA cable and you will be set. You do not even need to care about t...
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Romy,
I can't find a/the post(s) where you describe the advantages of using a 4 inch throat. Stereo-lab makes both 4 and 8 inch throat 140Hz horns but I don't think they could make an 8 to 4 inch adapter...
Also, would it be advisable to have t...
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http://phys.org/news/2013-05-sheerwind-invelox-turbine-power.html
I tried to start this in a New Thread, but I did not know how members start a thread. Build a custom driver & throat adapter for this & shake a cit...
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Ok, here's some calibrated sweeps. I ran the tetrodes in triode mode, with G2 strapped to plate through a 100 ohm resistor. First up is the western 6e6p.[img]http://www.hagtech.com/blog/images/6e6p.jpg[/img]I then built an adapter card th...
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[quote user="cat"]Will your tracer be able to pump 250-300mA at 230V? Will it be able to supple up to 100-110V of bias?[/quote]Not quite. I designed it for preamp tubes. But then I realized I could push it to cover a lot of the more popul...
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Well, I did some research and consulted with my network people and it looks like it might be unfortunately-expensive project. Still it will not be what I want.
They recommended me to go for what they call NAS (network attach storage). It tuned out t...
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Dear Romy,
My tests showed 2 separate types of noise/interference being caused when TU-X1 & DA-924 were switched ON while the TU-X1 was set to OUTPUT FM: -
First noise/interference, the Sansui TU-X1 was passing an AM broadcast on VARIABLE OUTPU...
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Below is the very same fragment from the very same LP (also not original but re-issue). The file is 88/24, FLAC compression.
http://www.mediafire.com/?bpgxdbru87fkx8x
The sequence of signal is following:
Ortofone Jubelee in SME 3012R ...
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Absolutely flat response will usually sound as you've described it; listen to your ears. If you are hearing the opening bass line of "So What" via the sub, you must be running the sub pretty high in frequency to compensate for lack of mid-bass. From ...
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Potentiometers:
Paul S wrote:"...I could not get the current below 390 mA, even though the pots still turn freely
... How good are these pots? Do they actually have "stops", where they won't turn any further? Again, I ask because it...
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[quote user="drdna"]As I had been looking at all these tubes I began to also inspect their interior construction. This will amuse you: one thing I would do is to hold the tube right up to my ear so the glass would be touching and thus mostly damped. ...
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With Ming permission I post a fragment of his emails where he describes his midbass horn. It appears that he uses cone-drivers with ltooooooo ow Fz in non-compression application with no back chamber. Now it is obvious where he is losing his midbass ...
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[quote user="Romy the Cat"][quote user="Telstar"] I meant that the Lynx digital output may retain some noise from the computer, not that you get noise from the onboard soundcard (provided that you have one -You have onboard audio disabled in the bios...
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Paul,
The idea of the not threaded forum is good that it is always there is opportunity to go back to all there and update own views, or to extend them. In many moths/years when the ML2 stop be a novelty for you, you might return to this thered and ...
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The headphone amplifiers are mystery for me. Form one perspective it should be simple but from another perspective I never heard any interestingly performing headphones amplifiers. Well, I have to take it back probably as wherever I even heard differ...
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[quote user="RonyWeissman"] I didn't realize that there is no balance control on the unit. I know in theory this should not be a problem, but I miss this feature for several reasons. Can't have everything when you buy on the used market t...
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Ok... Assuming the lack of time alignment is compensated for via a DSP:
There are likely large chunks of the frequency spectrum that go un addressed, and equally large chunks that are mall-addressed.
I would say that there are two main ranges ...
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