I've learned a little more about this issue.
The RB250 has an effective mass of 11g, the
DL-103R weighs 8.5 and has a compliance of 5cu.
So, the resonant frequency of this combo according
to the formula I've found is 16.1 Hz, which is
out of the safe range of 9-14 Hz.
Wonder if that 2 Hz will make a audible difference,
even if subtle or indirect? I'd need to increase
tonearm mass by 7g to get into the window.
In deference to the assurance of Dan_ed, I wonder
what the best way to add a quarter ounce to my
cart/arm is? A metal shim? Brass bolts?
The RB250 has an effective mass of 11g, the
DL-103R weighs 8.5 and has a compliance of 5cu.
So, the resonant frequency of this combo according
to the formula I've found is 16.1 Hz, which is
out of the safe range of 9-14 Hz.
Wonder if that 2 Hz will make a audible difference,
even if subtle or indirect? I'd need to increase
tonearm mass by 7g to get into the window.
In deference to the assurance of Dan_ed, I wonder
what the best way to add a quarter ounce to my
cart/arm is? A metal shim? Brass bolts?