lewm

Responses from lewm

Tonearm resonance
I'm sorry, but I still don't know what you mean by tonearm noise.  Tonearm bearings can be noisy, but I would think only on a very cheap tonearm.  Anti-skate devices can introduce a source of vibration by several different mechanisms.  But otherwi... 
SUT help
Elliot, So, to boil down what you wrote, your FR SUT used with an LOMC cartridge, has no effect on the overall SQ of your MX110 used straight in with an MM cartridge, even taking into account that the two cartridges themselves are different from o... 
SUT help
In my opinion, if you are dissatisfied with the SUTs that are built into the Modwright, you ought to talk to Modwright about having them install a better pair of SUTs. You would have pretty much the same array of choices, you probably will save mo... 
SUT help
Either “handy” or superfluous.  
Higher Impedance MC Carts on Transimpedance Stages?
Hagtech, You wrote, "There is no real contribution from phonostage, since it appears as a dead short, we are talking transimpedance, right?" I learned my audio electronics from a few good books and from reading what others say on the internet, al... 
Same Dance but New Step
Sounds like the grinding sound had nothing to do with alignment.  What was the problem as identified by SS?  
SUT help
This is very simple, besides the fact that you don't need a SUT.  You can use any SUT with a 1:10 step up ratio.  That means the signal voltage will be increased 10-fold, to 4mV with either of the two cartridges in question. That is easily enough ... 
Hagerman Piccolo Zero: New transimpedance head amp
"Head amp" usually refers to any outboard device that adds gain but not RIAA correction to the phono signal, ahead of the phono stage.  These days, a head amp can be current driven or voltage driven.   The Piccolo comes either way, I think.  
MC-MM-MI CARTRIDGES . DO YOU KNOW WHICH HAS BETTER QUALITY PERFORMANCE? REALLY?
Bipolar transistor for balanced circuit; FET for single-ended circuit.  Either used in a cascode topology with a tube "on top", gives very high gain with very low noise.  
Higher Impedance MC Carts on Transimpedance Stages?
The inductance of an LOMC is trivial, in the sense that it’s very low, on the order of 1000 times lower than MI which is already much lower than MM. Your acquaintance is probably happy because it works and he has yet to try an LOMC with truly low ... 
MC-MM-MI CARTRIDGES . DO YOU KNOW WHICH HAS BETTER QUALITY PERFORMANCE? REALLY?
Small point:  I did not mean to declare definitively that LOMCs can fail to produce realistic piano music because of low compliance resulting in mistracking.  I certainly do not know that to be the case.  I was just offering that as one unsubstant... 
Higher Impedance MC Carts on Transimpedance Stages?
Hagtech, In your equation, I assume R is the internal resistance of the cartridge and L is the cartridge inductance. Since you speak of "bandwidth", "f" must be bandwidth. Further I assume R is in ohms and L is in henries. I must have something wr... 
Higher Impedance MC Carts on Transimpedance Stages?
Nothing blows up. The mating would be inefficient as the internal impedance of the cartridge exceeds the input impedance of the BMC, which we think is around 2-3 ohms. Thus some of the signal voltage derived in the Kiseki would be lost to ground. ... 
MC-MM-MI CARTRIDGES . DO YOU KNOW WHICH HAS BETTER QUALITY PERFORMANCE? REALLY?
Mijostyn, You wrote, "The one huge advantage of high output cartridges is a much better signal to noise ratio which everyone will notice right away." That is actually a very complex statement, not completely correct and not completely incorrect, i... 
MC-MM-MI CARTRIDGES . DO YOU KNOW WHICH HAS BETTER QUALITY PERFORMANCE? REALLY?
Mahler, in my opinion, no, it is not possible to generalize about the different transduction mechanisms, as regards a pecking order of what gives best SQ. All MCs are certainly not better than all MMs, to address your specific point.