RAMP Out и RAMP Internal – is impedances of AMP, Out is the signal wire, Internal is ground wire.
RCable Out и RCable Internal – is impedances of cable, Out is the signal wire, Internal is ground wire.
RLoad – headphone impedance.
The calculator allows you to calculate the crosstalk of channels in the headphones with a three-wire wire system based on the impedances of the amplifier, cable and headphones.