Operation Manual
I-Tech HD DriveCore Series
Power Amplifiers
page 20
7 Advanced Operation
input Sources:
For each channel, turn the Encoder to select ana log, digital,
or CobraNet Options are:
Analog
Digital
Digital with analog backup
Digital with analog override
Digital with analog backup:
The I-Tech HD is being fed a digital signal and an
analog signal. The input is currently switched to the digital signal. If it fails, the
I-Tech HD switches instantly to the analog signal.
Digital with analog override:
The input is switched to the digital sig nal, and no
analog signal is applied. If an analog signal is sent, the I-Tech HD switches
instantly to the analog signal. If the analog signal fails, the I-Tech HD switches
to the digital signal after a delay set by the Hold Time slider in the Input Section
of the System Architect page.
Maximum Analog input:
Touch the screen to select: +21 dBu or +15 dBu.
Note: Changing this value changes the range of sensitivities available to the
amplifier.
For more information see Figure 7.3 and the I-Tech Sensitivity Charts in the
Appendix of the I-Tech Application guide. It is available online at www.
crownaudio.com/pdf/amps/137327.pdf.
Attenuator Limits:
You can set the maximum attenuation from
0 dB to
–100 dB. This feature allows you to set a limit on the attenua tors. Once set,
attenuation cannot be adjusted beyond this level.
NOTE: The attenuator setting must be below the attenuator limit that you are
trying to set. For example, if the attenuator is set at –3 dB, you cannot set the
attenuator limit below –3 dB unless you decrease the attenuator level.
Attenuator Link
You can set the attenudators to be independent or linked.
Turn an Encoder knob to choose one of those options, then press the knob to
save your choice.
AeS input Trim:
Turn the Encoder knob to vary the gain of the AES digital
signal for Channel 1: -100.0 dB to +20 dB. See Figure 4.4 for more
information.
