12.5 grams would still be medium mass. On a side note: The compliance of the Denon is higher than usually quoted - running the Denon in a light JMW9 (7.7g) gave a measured resonance of around 11Hz and the Denon sounded better on the JMW9 than on heavier Rega arms, at least IMO (possibly the unipivot arm, or maybe I am getting tired of the Rega midbass).
Overall, I would say the compliance and resonance is not the main issue with the Denon although heavier arms do seem to result in a better sound. Good bearings are essential.
By the way: Nice review - I absolute love the Denon 103 line. Be careful though, after running a Denon DL103 for 10+ years it is difficult to switch to any other cart. An recommendations for upgrades for the DL103 hooked fanatic?
Overall, I would say the compliance and resonance is not the main issue with the Denon although heavier arms do seem to result in a better sound. Good bearings are essential.
By the way: Nice review - I absolute love the Denon 103 line. Be careful though, after running a Denon DL103 for 10+ years it is difficult to switch to any other cart. An recommendations for upgrades for the DL103 hooked fanatic?