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I-Tech HD Series Power Amplifi ers
Operation Manual
page 27
4.8.1 Amplifi er DSP Selection Screen
On the left of this screen is the Input Signal Level Monitor
(explained later on this page). On the right side are rows of DSP
selection buttons for each channel. When you click on a button, a
control panel opens for that button’s function.
Also on the right are buttons that open control panels for these
functions:
• Amplifi er mode (dual, bridge-mono, input Y)
• Signal generator (pink noise and sine wave)
• Amplifi er information
• Recall and store presets
• Preset manager
• Apply to others (apply this amplifi er’s DSP settings to other
devices)
We’ll explain each of these functions on the next several pages.
4.8.2 Amplifi er Mode
This is switchable between dual, bridge-mono and 1x2 (input Y).
4.8.3 Input Level, Mute, Link, Level Meters, and Indicators
This panel is on the left side of the I-Tech main control panel shown above. Channel 1 and 2 Level
Controls set the input signal level of each channel. Each channel can be muted, and both faders
can be linked with the Link button.
Input Signal Level Meter
The measure ment range is from 0dBFS to –40dBFS with 0.5dB resolution. Each audio channel
has the following monitors:
• Switched Audio Input: This meter shows only the switched (selected) audio input after the
Input Audio Router.
• Clip Indicator
Output Signal Level Meter
The mea surement range is from 0 dB to –40 dB with 0.5 dB resolution. The monitors are scaled so
that 0 dB is referenced to the full rated output voltage of the amplifi er. The left meter is rms and the
right meter is peak. An output clip indicator is provided.
Indicators
Temp: Lights if the temperature of the amplifi er is too high and the amplifi er is near shutdown.
Green: Thermal headroom used up is less than 59%.
Yellow: Thermal headroom used up is 60-80%.
Red: Thermal headroom used up is more than 81%.
Limit: Lights when the amplifi er signal is being limited.
Load: Lights when the load impedance is out of range.
Ready: Lights when the amplifi er is on and ready to supply power.
4 Advanced Operation