Omnia 6fm Specifications
As of January 2002 – Version 6.01 Software
Note: All measurements made with the supplied "FactTest2" preset, which is available in the Preset
Submenu. Due to the nature of multi-band gain control and clipper algorithms used, the subjective sound
quality of any audio processor bears little relationship to its measured electrical performance.
Overall Specifications
System Frequency Response
Complies with the standard 50 or 75 microsecond pre-emphasis curve
within ± 0.50 dB, 30 Hz to 15 kHz. The analog left/right outputs and
AES/EBU Digital outputs can be configured for flat or pre-emphasized
output.
System Signal to Noise Ratio
> -80 dB de-emphasized, 20 Hz –- 15 kHz bandwidth, referenced to
100% modulation). The measured noise floor is highly dependent upon
the setting of the Input and Output Gain controls. The Omnia 6's noise
floor is primarily governed by the dynamic range of the Crystal
Semiconductor CS5360 A/D Converter, which has a specified Dynamic
Range of 105dB. The dynamic range of the Omnia 6 DSP chain is well in
excess of 120 dB. Typical SNR using the "FactTest2" preset is greater
than –80dB RMS in a 15 kHz bandwidth, referenced to 100%
modulation.
System Distortion
Less than 0.01% THD, 20 Hz – 7.5 kHz. (second order harmonic
distortion above 7.5 kHz is not relevant in the FM system due to the
removal of harmonics by the system's 15 kHz low pass filter)
System Stereo Separation
Greater than 65 dB, 20 Hz –- 15 kHz; greater than 70 dB typical.
Analog I/O
Analog Audio Input
Configuration: Left/Right Discrete Stereo. Electronically balanced, floating, and
symmetrical.
Input impedance: 10k ohms resistive.
Maximum Input Level: +24.10 dBu (12.28V RMS).
Nominal Input Level: A 13dBu input signal nets a –12dBFS input meter reading when the Input
Gain Control is set to 0.0 dB. Application of a 1.00 dBu input signal nets
a -12dBFS input meter reading when the Input Gain Control is set to
"+12 dB".
(NOTE: when the Input Gain and Master Drive controls are set to 0.0 dB,
a +13dBu input signal results in an input level of –12dBFS, and a
Wideband AGC gain reduction of approximately –15dB.
Connectors: Two, EMI-suppressed XLR female. Pin 1 chassis ground, and Pin 2 is
"hot".
