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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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Well i've been using this fine piece of equipment now for nearly 2 years with total satisfaction. My class D Nuforce SE V3 amps love the clean clear power. As i use my PP2000 for my whole system so does all other components in the audio chain. For th...
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They are based on some simple coil calculations on paper and a bit of qualitative mind modelling.The claimed observation that the higher temperature makes a difference comes from sombody else.RegardsErik...
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Hi, it is a bit unclear what you mean.If it is what normaly is called a tapped coil it will be dead wrong and the results probably invalid since different parts of the coil volume in the iron structure would be without current, depending of the tapps...
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that the high voltage coil will at the same flux have higher dissipation, this could mean that it will run at a higher temperature and thereby softening the mooving parts more.If this is the case and is benneficial, the resistor mentionned in the pos...
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I agree that the total flux will be the same but therefor in the same iron structure, the field in the gap will be the same, at least in the statical case.If the system is modulated by the speach coil, a simpel measure of how well the...
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Hi!Let me point out that two field coil magnets with identical iron parts, but different field coil wire thiknesses, will at the same field coil power dissipation produce exactly the same magnetic field and the loudspeaker will hence have same parame...
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Hi Clarke.Im interested too in some of them. Could you please contact me at bernie.f (at) silverserver.at.have a nice day anywaybernie...
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Romy:-A one of them, that has even a huge damage as 1” rip is my absolutely best driver-Maybe it is the best driver, not despite of the crack, but because of it??Rgds.be
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Romy wrote:
-It is of cause is very far from the “serious sound” as I understand “serious sound” due to the very many design decisions that WE did in 30s were done at sub-acceptable level.-
Are you thinking of the WE drive...
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Will get in touch this week and thanks for the quick response.Mike...
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I ve had my PP2000 for more than a year now and could not be any happier with the job it does for the sound my system delivers. I emailed them last week asking about any updates to the unit. As of this time no response. I believe and my ears back it ...
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Ive been using my PP2000 for over a year now and could not be any happier with the sound of my system. I believe power can get better but at this point the regenerator is the tops. I believe and my ears reaffirm that i am enjoying music like never be...
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Post #73:
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by
be
on
2010-02-27
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Romy wrote:"However, the diaphragm in the small JBL 2420 driver is full metal (correct me if I am wrong) and there is absolutely nothing in that driver that might be soften mechanically."The speach coil former seems to be made of some kind of fiber a...
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Post #54:
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by
be
on
2010-02-25
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Hello Haralanow.The diference you observed between high and low impedance fieldcoils, where they in the same unit and did you use the same kind of power supply? RegardsErik...
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Hi Haralanov.
My "friend" said that he made an experiment where he heated a permanent magnet up and thereby made it sound more like a field coil magnet, both with the same front.
If we can take this claim as true, it is evidence that the ac...
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Hello Stich.Could you, if you have the time, tell about your impressions of the arms you mention?Regardsbe...
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Hi Rakesh. I understand your point, but Helsingør is 40km from here and fortunately I am not married.
My ex wives are fine. I maintain a positive relationship with most of them and our children. Hm.. So you suspect your Italian wife is planning to...
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Schroeder wrote:
“My arms each take between 25 and 70 hours to make.”
From that it follows that it takes you about 7-9 hours to wash the dishes.
Then no wonder that your wife is a bit tense:
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Hello Romy,"Frank, I do not generally participate in the “technical discussions” about the tonearm design"I took the freedom and checked your participation in related threads and found your statement not to be true."Saying, all of it I
hope that you...
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Hello Romy,I thought we were just discussing technical issues around tonearm bearings with a focus on the peciuliarities of the bearing used in my arms. I have no intention to sell you anything. As stated in my first posting, I do not want to convert...
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Hello Romy,I should have made myself more clear about the paragraph you quoted. Typical situations:a. The arm is installed on a deck that accomodates more than one arm. The listener, if lucky, has two(for all intents and purposes) identical cartridge...
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Dear gentlemen,My name is Frank Schröder and I'm the guy in the picture. It wasn't taken to show off anything, I actually noticed it after the fact.I came across this thread by accident and even though I realize that I may be better off forgetting ab...
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Alnico can take 400-500 degrees Celsius before getting demagnetized, neodynium only 70, so probably a S2 is a good choice.That ring cavety looks almost as if they forgot to put in a part.be...
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Hi.The top picture of a cut JBL unit shows it has a ring just below the magnetic gap connecting the central polepiece and the front plate.Although there still is a little ring shaped cavity with a triangular cross section, the large cavity is hereby ...
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Post #45:
M
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by
be
on
2010-01-01
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"the chamber where the magnet is (would it be perm magnet of electromagnet) is absolutely decoupled from any paths where sound flows"The situation is the same as the backside of a woofer looking into a closed enclosure, and this relationshi...
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"the cavities behind the coil are not the cavities where pressure passes"Yes, but the speach coil and diphragm can "see" the air volumes behind the magnetic gap and will be loaded by the resonanses created, and the radiated sound might be affected al...
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This time also make shure that the cavities in the two versions, the alnico and the fieldcoil, have the same size and volume of cavities behind the coil in the magnet structure.In this way you make shure that it is the two magnet types you are listen...
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Hi Romy.I completely agree with you regarding the VTA <-> VTF relation on every arm out there (the lever rule also seems to work with tonearms ;-)). Also i agree that if you want the correct absolute measurement of VTF you have to do it on the ...
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VTF on all the Schroeders is adjusted by moving the counterweight behind the "bearing" back or forwards. This counterweight is fixed on the armtube by a screw. On the greater Schroeder arms there is also tiny screw on the backend of the armtube to do...
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Hi.Have you looked on the winding hight of the voice coil of the different versions? With that small magnet they are probably not underhung and the horn version might have a shorter coil and therefore smaller linear movement but higher power efficien...
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