The MIT RCA barrel has two parts - stationary and rotating. The stationary barrel is to the rear, closest to the cable jacket. Both barrels have knurled grips. To remove, hold the stationary barrel firmly and turn the front (rotating) barrel by the knob counter-clockwise (looking down - right side up left side down or clockwise from the back). The rotating barrel will travel rearward towards the stationary barrel until it stops against it and the gold locking clinch is visible around the units' rca plug. Now it can be removed.
To install, make sure the RB is fully back where you see the clinch. Place on the jack while holding the SB and push firmly towards the unit until it stops. Turn the RB clockwise while continuing to apply pressure towards the unit as it locks (or else it might slide off as the clinch is tightening).
To install, make sure the RB is fully back where you see the clinch. Place on the jack while holding the SB and push firmly towards the unit until it stops. Turn the RB clockwise while continuing to apply pressure towards the unit as it locks (or else it might slide off as the clinch is tightening).