The Dx38 is a two-in, four-out loudspeaker processor. A dynamic range of 115 dB, for highest audio performance; 48-bit filter algorithms 24-bit A/D and D/A conversion. Real-time control and configuration via front panel or PC interface with RACE software supplied. RS-232, MIDI interfaces are standard. RS-485 bus for networking is optional. Contact-closure interface is optional.