Main technical characteristics of E-MU1212m PCI

• Sampling frequencies: 44.1/48, 88/96, 174/192 kHz from internal or external source
• Bit depth: 24 and 16 bits
• DSP: 32-bit with 67-bit sum register
• Hardware-accelerated mixing and effects overlay 100MIPs.
• PCI Bus-Mastering DMA support to reduce CPU load
• Hardware direct monitoring with zero latency
• Hardware support for ASIO 2.0, WDM, MME, DirectSound (DirectSound3D and EAX are not supported)
• 2 analog inputs and outputs
• SPDIF input and output (coaxial and optical, optical combined with ADAT)
• ADAT input and output (8 channels at 44.1/48 kHz, 4 channels at 88/96 kHz, 2 channels at 174/192 kHz)

Inputs

• ADC - AK5394 (AKM), OA - NJM2068M (JRC)
• Professional level +4 dBu nominal, 20 dBu maximum , balanced connection
• Household level -10 dBV nominal, 6 dBV maximum , unbalanced connection
• Frequency ripple +/- .05dB, 20Hz - 20kHz
• THD+N (1kHz @ -1dBFS): -110dB (.0003%)
• Signal/noise (A-weighted, 22 kHz bandwidth): 120 dB A
• Dynamic range (1 kHz, in 22 kHz band): 120 dB A
• Channel Penetration (1 kHz @ -1dBFS): < -115 dB

Outputs

• DAC - CS4398 (Cirrus Logic), OA - NJM2068M (JRC)
• Professional level +4 dBu nominal, 20 dBu maximum , balanced connection
• Household level -10 dBV nominal, 6 dBV maximum , unbalanced connection
• Frequency ripple (20Hz - 20kHz): +0.0/-0.35dB
• THD+N (1kHz @ -1dBFS): -105dB (0.0006%)
• Signal/noise (A-weighted, 22 kHz bandwidth): 120 dB A
• Dynamic range (1 kHz, in 22 kHz band): 120 dB A
• Channel Penetration (1 kHz @ -1dBFS): < -120 dB

E-MU specifically points out that the same converters are used by the more expensive ProToolsHD 192 interface from Digidesign .