Three tonearms to SUT (Fidelity Research FRT-4 with 3 selectable RCA inputs).

SUT’s OEM cables out to preamp are fixed, RCA + Ground. I had to extend the SUT’s ground to reach the ground on my McIntosh mx110z tube tuner/preamp: the phono RCA’s rear right, ground rear left. Simple bullet connector to common green wire with crimped ground clip. Most phono have ground adjacent to the RCAs.

Acos-Lustre GST-801 arm has OEM DIN cable to the SUT

Mission arm has 5 pin connector in it’s arm tube. OEM cable not included. The connector is far up the narrow tube, so a long narrow din connector with no shoulder was needed. I found a connector, gave the info to Pine Tree cables, they made me a custom cable for very reasonable price, other end RCA to SUT.

Russian Blackbird 12.5" Long Arm (I didn’t realize) came with loose silk covered litz wires and a Junction box (like VPI’s Junction boxes). Except, because they wanted you to select where you put the box, you hair-rasingly soldered the tiny litz wires inside the box. They recommended and I bought an Ortofon phono cable, junction box to SUT

TSW1010 R Tonearm Cable RCA - RCA, around $300. Frankly I heard no improvement than the temporary cheap phono cable I was using.

Silk insulation of litz wire wore off: hum. VAS re-wired the arm, his preferred wire with sturdier outside insulation, mini-din to VPI mini-din/rca box: inside wiring factory done..