lewm
Responses from lewm
| Calculation verification please Not possible. With a 1:40 SUT into 47000 ohms, the cartridge will see a -30 ohm load. The sum resistance of two parallel resistors cannot exceed the value of the lowest value resistor. So any resistor you place in parallel will reduce the impedanc... | |
| Turntables currently considered top of the range. Do you know what they are ? Was just thinking it’s ironic that the LP12 is denigrated for the high cost of upgrades but Clearaudio gets away with it because for $20,000, you also get a name change. | |
| SUT for AT-OC9XSL? A phono stage with 70db gain does not need any SUT to amplify your cartridge; I say this without knowing precisely the voltage output of your cartridge, but just about any LOMC with output 0.2mV or higher will be more than adequately served by a 7... | |
| SUT for AT-OC9XSL? You are leaving an important parameter out of the equation. What is the gain of your phono stage? What is the output of your cartridge? If you can make do with a baseline step up transformer that has a one to 10 gain ratio, then there are a myriad... | |
| Is there usually a dramatic difference between $5k and $10k cartridges ? My today self is amused by my then self for even taking the trouble to assemble 6 pairs of power cords, let alone doing the listening test. | |
| Is there usually a dramatic difference between $5k and $10k cartridges ? Conversely, I evaluated 6 different power cords providing power to the bias supplies of my Sound Lab ESLs. I did not expect to hear much if any difference, but I did hear a hardware store power cord (the stock cord. provided by Sound Lab) come in... | |
| Linn Bedrok LP12 Plinth Upgrade Davey, You said you can put your stylus into the lead in groove and there is dead silence. All I am saying is that should be the case for any decent turntable at normal listening levels, because one ought not to hear bearing noise (even though be... | |
| Linn Bedrok LP12 Plinth Upgrade Noise once you lower the cartridge onto the LP surface is going to be primarily do to the quality of the pressing and any defects in the stylus shape or tracking, surely not due to the bearing assembly, which noise ought to be way below the thresh... | |
| Pick it Pro Balanced cartridge? real balanced? any good? "Actually both the + and - sides of the cartridge output is what floats." Probably that is a better way to say what I said. I certainly don't disagree. | |
| Pick it Pro Balanced cartridge? real balanced? any good? There have been historically a very few cartridges that for example used a single ground for both channels. Those cartridges (Decca, I think, or early Grado) are inherently single-ended and cannot drive a phono stage in balanced mode. But any car... | |
| Linn Bedrok LP12 Plinth Upgrade Not to beat a tired horse, but when I first read the word "fettler" on this thread, I had no trouble understanding its meaning, owing to our use of the term "fiddling", meaning to mess around with a complex object, and the obvious relationship to ... | |
| Simple tube-use question Remove and clean for sure. There is no useful reason to leave a paper sticker on a vacuum tube. | |
| Resistors for phono preamp There seems to be a general consensus here. If I had to rank my top 3, I would put the TX2575 first by a hair with Caddock TF020 almost undistinguishable. Both slightly ahead of tantalums. (In my experience, there is nothing magic about the Audio... | |
| Resistors for phono preamp Best most transparent resistors in my DIY experience: Texas Instruments TX2575, Caddock TF020, and tantalum any brand. | |
| Linn Bedrok LP12 Plinth Upgrade I googled Logic. Very interesting spring-suspended TT and very reminiscent of the early AR XA turntable, which was my own first true audiophile turntable, probably in 1970-71. I suppose Logic may have crossed my path at some point, and I just for... |