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I-Tech HD Series Power Amplifi ers
Operation Manual
page 35
4.8.14 Amplifi er Information
Information about the amplifi er is stored in the software
system inven tory and is displayed on the software
control panels. Information includes manufacturer,
model, date code, and serial number. The green items
can’t be edited.
Channel Labels: Each amplifi er includes two labels
that you may edit for your own use. Simply type in the
text areas. Use these labels to describe the channels of
your amplifi er. These names will appear in the individual
processing blocks.
Attenuator Limits: This lets you set a limit on the
attenuators. You can set the maximum attenuation from 0
dB to –100 dB. 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.
Blackout Mode: This button lets you blackout the front
panel display until you press a front-panel button or turn
an Encoder. This feature turns off the LCD backlight and
all front panel LEDs except for the fault LEDs and power-
switch green LED. After blackout mode is enabled, an
Encoder press/turn will “reactivate” the display. If no
button is pressed/turned for over 5 seconds, the display
will return to blackout mode.
4.8.15 Apply to Others
This screen lets you apply the System Architect settings
for your I-Tech HD amplifi er to other I-Tech HD ampli-
fi ers in the venue fi le.
4.8.16 Delay (Latency)
Due to the nature of DSP processing, there is some inherent delay or latency within
the I-Tech’s DSP. These latencies are shown in Table 4 below:
Table 4. I-Tech HD latencies at two sample rates
Sample
rate
ADC DSP DAC Ampli-
fi e r
Total
latency
48 kHz 250µs 666µs 196µs 54µs 1.166ms
96 kHz 94µs 333µs 48µs 54µs 529µs
These latencies do not include CobraNet Transport Latency and FIR Processing
Latency.
4 Advanced Operation