The invention relates to a system and method for generating a premodulated interferential current, particularly for spinal cord stimulation, using a pulse generator having multiple electrodes, wherein a premodulated current is generated using at least one electrode, wherein said premodulated current comprises a train of biphasic pulses having a repetition frequency, wherein each biphasic pulse comprises a stimulating phase and a balancing phase, and wherein said premodulated current comprises an amplitude modulation envelope having an envelope beat frequency smaller than said repetition frequency of the biphasic pulses, wherein said modulation envelope is generated in the pulse generator.