M-AUDIO OmniStudio USB - Manual (Page 42)

Frequency Response:
Mic In to Main Output: +0.0/-0.3dB, 20Hz-20kHz
Instrument In to Main Output: +0.0/-0.3dB, 20Hz-20kHz
Line 3/4 in to Main Output: +0.0/-0.5dB, 20Hz-20kHz
Input Specifications
Max Input Levels:
Mic In, Min gain (no pad): 3.4Vpp balanced
Mic In, Max gain (no pad): 3.8mVpp balanced
Mic In, Min gain (w/ pad): 34Vpp balanced
Mic In, Max gain (w/ pad): 38mVpp balanced
Inst In, Min gain (no pad): 9.5Vpp
Inst In, Max gain (no pad): 19mVpp
Line In 3/4 -10dBV nom: 5.4Vpp
Line In 3/4 +4dBu nom: 21.4Vpp
Stereo Aux Inputs: 3.7Vpp
Input Impedances:
Mic In: 3.4kohm (1.7k per leg to ground)
Inst In: 1Mohm
Line In 3 and 4: 50kohm
Stereo Aux inputs, FX Return, Insert return: 10kohm
Output Specifications
Max Output Levels:
Direct Outs -10dBV nom: 2.7Vpp (= -0.4dBV)
Direct Outs +4dBu nom: 10.7Vpp (= +13.8dBu)
Main Outs: 2.5Vpp (= -1.1dBV)
Monitor Outs: 2.5Vpp (= -1.1dBV)
Headphone Outs: 19.4Vpp (with 75ohm output impedance)
Output Impedances:
Headphone Output: 75ohm
All other outputs: 470ohm
Power Supply
3500mA 9VAC 'lump in the line' power supply required for operation
Dimensions and Weight:
1.83"H x 13.9"W x 6.9"D (for normal desktop use)
1.74"H x 19.0"W x 6.9"D (with rack ears, w/o rubber feet for rack mounting)
3.9 lbs, 4.4 lbs w/ rack ears
41