 The digital oscillators are built around a specialized circuitry (based on ASIC), in charge of playing back samples stored in DRAM.Each DRAM chip stores 262,144 bits, and there are 12 memory chips used in parallel to store the 12 bits samples.A 16-channel digital to analog converter unit generates the 16 oscillator signals (8 voices of polyphony with 2 oscillators per voice), being fed into the analog processing unit built around 8 VCF/VCA chips, each of them being controlled by voltages generated from the 63B03 processor board.