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| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
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OK, I have one foot back in the water again, a hand-me-down monoblock from a "well-respected movie sound producer", to whom I am connected through dear friends. Like most "sound professionals", he is fairly dismissive of the way "we" hi-fi nerds go ...
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If you can do it, try isolating both cases/chasses from your "ground plane(s)". Use one inclusive "ground plane" for both the PS and the gain/RIAA sections, and ground this "ground plane" to the house "neutral" wire. Do NOT connect any shielding to t...
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Hi Romy,The thing is.. Mr Schroeder is making a living and as such (being someone who needs to make a living in order to pay for stuff), he may from time to time have to associate himself with people that will facilitate this ability to help him pay ...
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I am sorry that Steve is unhappy with the inability of PurePower tech support to resolve his phono hum. It is not because we did not provide adequate support. We brought the unit back to our plant and gave it as thorough a series of QC tests as possi...
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Over 10 year later, I finally "finished" and installed a shielded version of the above cable for the short run between my phono SUT and my phono stage, replacing the nondescript Placette cables I've been using there all this time. As anyone experien...
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| agree with your feline wariness with regard to torch bearing disciples of any given faith, be they believers in Altec, Audio Note or even Vitavox. In the case of Audio Note the fervour has often been exacerbated by the activities, pricing and ...
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Hi Antonio, I just realized I glanced over that thread assuming its relationship to the 6 levels of benefits. Its quite interesting, but I do not know where I fall in that spectrum (no, it can't be discrete stages as its far to "big" to really ...
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The 112's on my amplifier were made in 1926. I think they sound good but I actually chose them because I wanted low gain. Regardless of that there is a certain different pleasure to be gained from playing modern recordings using tubes made over 80 y...
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[quote user="George"] Even though a PS Audio and others create a perfect AC sine wave this does not seem to be the answer, even for low draw front end components. It seems that some type of problem is still coming through. [/quote]
George, you not n...
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Take the best components, the best listening environment and will you have the perfect system, maybe for a few fleeting moments.Everything can be improved, speaker positions adjusted, components upgraded. Take the perfect phono stage, we can ...
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Good advice, to be sure.I have chosen the most "neutral", "tape-like" MC I have found, but of course it remains a phono cartridge/transducer... Meanwhile, I just checked VTF on a hunch and was annoyed to find that at some point&n...
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SOS, as a starting point, it does not seem at all odd to me that adding an "other" piece of equipment to the electrical chain might require a reconfiguration of the system ground scheme. Of course, the phono stage is the worst case for hum, PP o...
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Amir, I told of my own approach to wall power in other threads. Basically, I tried to make my gear as tolerant of AC variations as I could without simply smoothing everything over. My DAC runs on battery power. I modified the power supply and changed...
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I have stated several times that the ML2s are less sensitive to bad electricity than my phono stage, and this is true. However, this is not to say that the amps are immune to bad electricity. In fact, it is the effects of bad electricity ...
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Most will recognize the Roman gladiator's salute. Caveat...Based on what I've seen at AA, this is as likely a place as any (and more likely than most) to go down in flames.My own motive for starting this up is recent experiments with super-pure...
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Romy,
New member around here great website! I have what is probably a silly question about the above EAR schematic. I've been in the planning stages of scratch building a phono stage and have been looking at a few designs and ju...
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This is always good advice, to get to know the character of the phono stage. Because my favorite cartridges are not low voltage (I use Decca London Jubilee and Reference) I have never had a need for the ET SU-1 step up unit. In fact, I had this in my...
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Needless to say, my arm (the Well Tempered Reference) is all about silicone. And indeed, damping does change - somewhat - with the temperature. However, it takes extreme temperature changes to make me feel the need to adjust damping (whic...
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[quote user="Paul S"]I thought of the AMR equalization curve options as I listened to a London FFRR LP (Kubelik/VPO/New World) today using my new technique to optimize stylus tracking.The FFRRs are well known to have some extra LF, all right, but wit...
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[quote user="Paul S"]Is the "ground plane" in this case literally a sheet of copper that you run all the grounds to? If so, this may be overkill on the one hand and an antenna/noise magnet/generator on the other hand, and/or it may well make for grou...
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[quote user="gurevise"]Ideally, you'd want to drive 35 feet of balanced interconnect with the low impedance source ( say below 150 ohms or so). How low depends upon interconnect capacitance. You can try Jensen output transformer to convert SE to Bala...
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Something fun to think about is that the length of this sort of cable can change the sound, due to internal "reflections", this sort of thing. I've read a lot about it, as it affects the "communications industry", and laboratories, and it gives me he...
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[quote user="guy sergeant"]I used to work for a valve amp making company and we had a little 2 stage phono amp that sounded far better than the 834 with passive eq, no feedback etc. It also cost less than the EAR.I can send you the schematic if you w...
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then the idea of amp bypassing is relevant to the "clean signal" discussion. But regardless of the measured voltage out vs. driver sensitivity I suspect that there is too little of something in the way of drive and control between a&n...
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Romy's virtual example is a wonderful example of "context", perhaps the only error up to now in this thread.The description of Walters VirtualPhonoStage would be a great article for the website: http://www.I_am_a_deaf_musician_but_so_what.org, but ha...
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N-set, you will never know how your phono stage sounds with the "silver path" until you try it. FYI, the WBT Next-Gen M/F work well --- with each other, but less well, mechanically, with the Vampire sockets; I don't know why yet. The Vampire seem t...
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Vinyl almost died after the launch of CDs, but today the popularity of vinyl playback is on the rise. Music stores are selling more music available on LPs, and many audiogon systems include turntables. So where are the full-function preamps? Before d...
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I must say that I have always thought the Cardas "Golden Ratio" schtick was pretty lame. So it was with no small measure of trepidation that I sent off a rather outlandish sum of money for two Cardas Golden Whatever 4.7 uF caps for th...
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Romy, my experience with the Lundahl amorphous core transformenrs is limited to my new phono stage, and I have have been dealing other issues enough that I am not ready to write much about it yet.Still, there are qualities worth noting...
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Sounds too good to be true, Romy. But it is winter, and I admit I'm still holding my breath.From the reports so far, it looks like the thing might be worked with to good overall advantage; but, as usual, some significant adaptation is...
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