Roberjerman, You wrote, "Mc cartridges have a rubber damping block at the opposite end of the
cantilever. This takes care of vibrations traveling up the cantilever -
so no vibrations reflected back down the cantilever!"
Do you believe those dampers on MC cartridge suspensions are absolutely 100% efficient? Is anything in the physical world 100% efficient? Most likely, the answer is no; therefore there is energy traveling down the cantilever. Also, if you want to suggest that Peter Ledermann is being disingenuous in order to sell cartridges, then your critique ought to include a physical explanation for why you say MC cartridges generate a superior transient response (presumably superior to MI and MM types, but you don't say). If your explanation hinges on low inductance, explain how that might work, because I think inductance per se is a non-factor, if one chooses the proper amount of capacitance to go with. The inductance of an LOMC is typically more than 10,000X less than that of an MM but only about 50X less than an MI; if those differences were directly proportional to transient response, I don't think we'd be having this discussion; every one of us would be using an LOMC cartridge and MI/MM types would have gone the way of the ceramic.
Peter Ledermann probably feels he has to write those essays in order to convince audiophiles, who have been brainwashed for years into paying exorbitant prices for LOMC cartridges, to give his products a try. Also, he is a smart guy; perhaps it would be more fair to ask him to defend his theses regarding "jitter", etc, instead of smearing him here, more or less behind his back. I think he is an honest man who believes what he says.
Do you believe those dampers on MC cartridge suspensions are absolutely 100% efficient? Is anything in the physical world 100% efficient? Most likely, the answer is no; therefore there is energy traveling down the cantilever. Also, if you want to suggest that Peter Ledermann is being disingenuous in order to sell cartridges, then your critique ought to include a physical explanation for why you say MC cartridges generate a superior transient response (presumably superior to MI and MM types, but you don't say). If your explanation hinges on low inductance, explain how that might work, because I think inductance per se is a non-factor, if one chooses the proper amount of capacitance to go with. The inductance of an LOMC is typically more than 10,000X less than that of an MM but only about 50X less than an MI; if those differences were directly proportional to transient response, I don't think we'd be having this discussion; every one of us would be using an LOMC cartridge and MI/MM types would have gone the way of the ceramic.
Peter Ledermann probably feels he has to write those essays in order to convince audiophiles, who have been brainwashed for years into paying exorbitant prices for LOMC cartridges, to give his products a try. Also, he is a smart guy; perhaps it would be more fair to ask him to defend his theses regarding "jitter", etc, instead of smearing him here, more or less behind his back. I think he is an honest man who believes what he says.