Hello Raul,
I agree with you that too much is made about cu and mass. It is often hard to predict the outcome of a highish cu cart in a heavier arm. I never owned a Sonus cart and therefore never tried one on my Sonus arm. That might be interesting, especially with your results on a much heavier arm. On the other hand, my M20FL Super seems to sound sluggish on my med/heavy arms. Maybe it's the combination, but it seems to sound much better on an 11g Alphason 100S or a 8g Unitrac.
Light weight/low mass arms usually don't sound good with heavy, low cu carts. At least that has been my experience. Resonance goes toward the audible band and the structure of the light arm can't handle the mass or energy.
I didn't mean to imply that strict rules had to be observed, matching cu to mass. With a good tracking cart of 20cu, a wide range of arms can be used successfully. I found this to be true with my Stanton 980. Results were somewhat different with the M20FL. It seemed sound thicker, although I didn't even try the 980 in my heaviest arm.
Regards, fleib
I agree with you that too much is made about cu and mass. It is often hard to predict the outcome of a highish cu cart in a heavier arm. I never owned a Sonus cart and therefore never tried one on my Sonus arm. That might be interesting, especially with your results on a much heavier arm. On the other hand, my M20FL Super seems to sound sluggish on my med/heavy arms. Maybe it's the combination, but it seems to sound much better on an 11g Alphason 100S or a 8g Unitrac.
Light weight/low mass arms usually don't sound good with heavy, low cu carts. At least that has been my experience. Resonance goes toward the audible band and the structure of the light arm can't handle the mass or energy.
I didn't mean to imply that strict rules had to be observed, matching cu to mass. With a good tracking cart of 20cu, a wide range of arms can be used successfully. I found this to be true with my Stanton 980. Results were somewhat different with the M20FL. It seemed sound thicker, although I didn't even try the 980 in my heaviest arm.
Regards, fleib