The Audiomedia II is a NuBus DSP audio card first released on 7/30/92.Sample Rates: 44.1kHz, 48kHz.A/D, D/A Convertor: Stereo, 16-bit, 64x Oversampling.Frequency Response: 20Hz - 20kHz (+0.1dB, -1dB).Signal to Noise: >88dB (A weighted). THD+N: 0.009%.Input/Output Level: -10dBu (0.316 Volts RMS).Digital I/O format: S/PDIF, IEC 958, 24bit I/O DSP clock: 33.8688MHzNuBus power consumption: 6.5 watts.Analog Input/Output Impedance: Input = 5kohms in, Output = 100ohms.Digital Input/Output Impedance: 75ohms (S/PDIF).DSP memory allocations (SRAM): X location = 4k, Y location = 4k, P location = 8k.Physical Dimensions: 13"x4"x1/16" (not including rear or NuBus connectors). This card is a full length NuBus card. SDII 2.8.2 or later required for full 24-bit support.