SigmaDSP™ Digital Audio Processor with On-Board Converters SigmaDSP 3-channel/ 26-Bit Signal Processing DAC SigmaDSP 3-channel, 26-Bit Signal Processing DAC SigmaDSP??3-channel, 26-Bit Signal Processing DAC SigmaDSP⑩ 3-channel, 26-Bit Signal Processing DAC