@holmz : " I have a tone arm with a connector that plugs into the bottom of the arm.."
Which tonearm and which kind of connector it has? for what you posted the tonearm output connector is a DIN Pin5.
@imhififan @yogiboy already gave the solution.
" Is there any meaningful sonic advantage in going direct from DIN to phono stage? "
Absolutely, you need to go directly to the phono stage with nothing in between the DIN PIN 5 output connector and the input at PS other that the IC cable that those two gentlemans already posted and gave you the link ! ? ? !!
R.