I recorded on 2 tracks in the DAW. Track 1 is the output of filter 2 and track 2 is output of filter 1 (hihat sound made with noise).
I don't have a multiplier in the 2500. So to multiply the clock of the hihat I simply copied the hihat track in the DAW afterwards and shifted it a bit to make it a double of the main clock.
I send the output of the sequencer to a quantizer before going back into the matrix to control the CV of the 3 oscillators.