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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Yes, CV, I thought about it myself and I fine that this might be VERY interesting to play with. Unfortunately, or fortunately, I am months away from the position when I will be able to do it. The subject is devilishly interesting however. I think it ...
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In my upcoming DH Milq MF DSET I will have an Innerstage transformer and output transformer. The loading of output tube has known effect to harmonics vs. transients, it is know, it is predicable and it is manageable. The Innerstage transformer might ...
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[quote user="Axel"]OK, this is useful also, in that you have not noted a "pattern" as you say. My point is closer to your suggestion, that I do change cart --- and sometimes buy new ones, B U T I do not buy other SUT (at least I try to avoid it). I'...
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Here is a snippet from an email from Jonathan Carr (Lyra cartridge designer) about objectives and considerations regarding cartridge loading. Most of this is old news, I only re-post it here as a convenient synopsis on this most misunderstood t...
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Here is a snippet from an email from Jonathan Carr (Lyra cartridge designer) about objectives and considerations regarding cartridge loading. Most of this is old news, I only re-post it here as a convenient synopsis on this most misunderstood t...
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[quote user="guy sergeant"]On the Ortofon website those models of the SPU which don't come with inbuilt transformers, have a recommended load of >100 ohm. Using the cartridge into too low an impedance load definitely does lift the lower frequencie...
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I use a direct radiator monopole for below 650Hz, this is OK and I have it working well. I think that I want to control directivity so that I can stop floor/ceiling comb filtering which gives me problems of +/-6dB and more. Now I am using extra monop...
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[quote user="Romy the Cat"] I do not know if “stupid, indiscriminative mass loading is a road to nowhere”. [/quote]Let me try to explain why I think so. Adding mass (e.g. sand+shot loading of steel profiles):1) makes the vibration amplitude smaller f...
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Hello Romy,
This statement generated a question:
>>With a "normal" set you have the output stage that let say loaded with 18x transformer.
What does this mean? Let's say the OT is...
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[quote user="op.9"]Thanks, look forward to hearing about your results. I am tempted to make some similar experiments myself - but all I have to hand is some 17.5:1's. I think I'll give it a go anyway..[/quote] The 17.5:1 is good number as well. I pre...
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[quote user="Romy the Cat"] Currently I have Jack Elliano’s made 450mA, large, single section LF transformer that begin to roll somewhere around 800Hz. The transformer ha s a lot of core mass and at full Melquiades’ LF power (~20W) it begins to clip ...
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After a few years I have again pair of Lamm ML2 in my room and I decide to take advantage and render my experience with this amp into a format of my today’s understanding. I know ML2 quiet we and used it with a number of loads. Over the time I develo...
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[quote user="drdna"]
I chose this for a sound most free from "graininess" which may change with PP2000. However, what is the rationale to change the impedence loading on the tube, from your perspective? As you know the Magnequest OPT has taps for 4,...
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Yes, I guess I would sing the different songs if I need to load them differently. In fact Mi might need but I juts refuse to acknowledge it. Nevertheless I am not planning to compromise my phonostage by different loading. BTW, did you try to load the...
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[quote user="Romy the Cat"]In my upcoming DH Milq MF DSET I will have an Innerstage transformer and output transformer. The loading of output tube has known effect to harmonics vs. transients, it is know, it is predicable and it is manageable. The In...
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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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Roman,
You wrote:
[Any person who knows the real value of the POD cable and how to use them (very important)... ]
I'm interested in reading more about your findings on proper use of PAD cables. Is there a relation to your findings on "cable ...
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Roman in a few posts you have made reference to the interesting topic of cable current loading. I'm keenly interested in your findings....
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[quote user="Dresden"]I'm a new reader of your website and one subject which interests me a lot is that of upper bass horns.
As you have noted time and again (with which I agree almost completely, after reading a lot of 'research' [many claiming to ...
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I've been doing a lot of research on how a properly designed horn works
(from initial Western Electric designs to present day efforts) in order
to get a real grasp of what will and will not work. I've read and
saved hundreds of papers and de...
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[quote user="electronluv"]are you asking if i like higher impedance tubes with my drivers i have always love the sound of imac tubes round plate triodes !!! i change amps alot right now i im running 75tl amp for highs and a 300B for bass drivers . ...
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[quote user="electronluv"]I have not tried different loads for the different driver magnets but i also have not played with fix magnets for a will.one thing is changing load to the tube really only makes a big difference in the bass regions on a...
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Alex, a cartridge loading has no “right” absolute value, it has of courses a certain fork of right values but to loading of a cartridge up to one of a few Ohms would be depended from many parameters, in some instanced unexpected. In my hands, used as...
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[quote user="Axel"] …did you experiment with either primary or secondary SUT loading using your various carts? If so would you mind to share any of your findings? [/quote]
Or course I did, anyone did. I am not sure what findings you would like...
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Manufacturers do not recommend any specific loading, and it they do then they shell not do it. They recommend a region where most probable final loading value might be. In case a transform is use it make not difference; they just transfer impedance i...
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yes I understand your take with regard to those phrase, now what a about "too dull" or "not resolved" or "lack of detail"?Those would then be equally 'incorrect' for initial sound determination. If I use a different cart to my current V15 xMR, sa...
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I see. This is a very fortunate situation.Unfortunately my TSD15 wants to see a high load of 200R,hence the question.Low EMF shielded reed relays seem to be especially designedfor switching uV signals (unlike gas filled Au over Au/Pd ones I've found)...
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I never feel comfortable with corner-loading despite that the best midbass I even heard was coming from corner-loaded horns. The corner-loading is so much room specific and it is so imposable to do anything with it that it become a very ugly lotter...
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[quote user="Paul S"]Mani, my first thoughts were questions, whether you want to fill the room "like headphones fill your head" or you want to aim the speakers right at your ears and "do the mixing inside your head, like headphones".[/quote]Hi Paul,M...
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Romy wrote (in the "It’s mad, mad, mad... electricity." thread):"...I might not have enough power in new room for my woofer towers and it would force to use class A/B SS amp..."You've mentioned on more than one occasion how much you love what you...
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