I had a Denon DL103R on my RB600 and it was just fine without any extra headshell weight. I never tried any kind of experiment to see if it would be better with some extra mass, but if it ain't broke.... well, you know.
I did find a brand new NOS Denon DL 103D about 3 months ago from a seller in Hong Kong for $329 on Ebay. It's a great cartridge and I've never regreted selling the R when I got the D. But that said, the 103R was also a great cartridge, I just find the 103D sweeter overall.
The 103R is stiff enough to make music directly from the record groove -- with the amp off. It's not noticable except up close with the amp off, but it's there.
Good Luck
Paul Green
I did find a brand new NOS Denon DL 103D about 3 months ago from a seller in Hong Kong for $329 on Ebay. It's a great cartridge and I've never regreted selling the R when I got the D. But that said, the 103R was also a great cartridge, I just find the 103D sweeter overall.
The 103R is stiff enough to make music directly from the record groove -- with the amp off. It's not noticable except up close with the amp off, but it's there.
Good Luck
Paul Green