The Danville Signal Processing, Inc. dspMusik 2x8 digital processor and HiRez DAC is an Analog Devices SHARC based DSP processor with four Wolfson Micro WM8742 HiRez DAC's running at 24bit/192KHz for all inputs. It uses the Analog Devices Adaptive Sample Rate Converter designed by Bob Adams at AD in it's most complete form. All signals are processed in PCM format by the floating point DSP. All internal signal processing is done with 40 bit floating point precision.
The system is limited to two stereo input channels, but the A/D's can be driven by any balanced or single ended source with the correct adapters. There is no multichannel decoding, but can be run after a surround sound processor via the analog inputs.
The system has stereo A/D converters, USB2 and S/PDIF coaxial inputs for source inputs. There are eight balanced output DAC output channels that can be assigned in the software to anything needed. The software allows the user to control all the parameters of the system in real-time with display selection like DAC 32bit digital volume control to drive amps directly.
The MS-3 Music Server hosts both the Foobar2000 music playback software and the Audio Weaver user interface to the dspMusik. This is a fully integrated system. If the user runs Room EQ Wizard with a calibrated mic, like the Dayton Audio UMM-6, the speaker and room measurements use the dspMusik as the output source. This way the measurements are through the digital crossover running on the dspMusik.
Since software like Math Audio room and speaker correction run on the MS-3 PC, they can also be integrated into the system. Have also tried Dirac Live demo and that worked as well.
For totally digital source files, the MS-3 runs Foobar2000 directly into the ASIO driver for the dspMusik directly to power amps connected to the speaker drivers.
One goal of the overall design was to have improved sound quality over the Behringer DCX2496 with improved capabilities. The Wolfson WM8742 DAC's running at 24bit/192KHz met this goal to the listeners who tested the unit. Audio Weaver is very flexible and with the capability to define Butterworth and Biquad filters, can be made to do just about any crossover idea.
If anyone has questions on the dspMusik, this will be a good thread to discuss them. I will post pictures of the user interface and system.