14
Level adjust
Level indicators
Front-panel monitoring and adjustments
The front-paneldisplays an array of ten LED indicators for level and status monitoring of
each amplifier channel. Indications related to signal levels are as follows:
Orange CPL (Current Peak Limiter) flashing Indicates that output signal has
reached the limit of the output devices and limiting is in effect.
Red VPL / CLIP Indicates that signal has reached maximum output voltage.(Maximum
voltage is determined by rear-panel VPL settings.)
Green SIG to -4 Indicates output signal levels in normal operating range.
SIG+HI-IMP (green / orange) Indicates input signal above -44 dB. Should the SIG
indicator turn red, this indicates a “high-impedance” or open connection has been
detected at the output. Possible faults include a disconnected cable or malfunctioning
loudspeaker. (In some case a normal condition, such a sub-bass enclosure with high-
impedance at a certain frequency, can trigger this indication.) If the -10 dB LED
illuminates and the HI-IMP LED turn orange, then the amplifier has detected an open
load (no loudspeaker connected).
More detailed signal indications are available using the DeviceVontrol software
application.
Mute indication
Performance, Warning and Fault indicators:
Global Indicators:
Level adjust potentiometers (one per channel) are located on the front panel adjacent to
the LED display. The potentiometer’s operational range is 0 dB to minus infinity.
Individual channel Mute is indicated by illumination od the red Mute LED provided for
each channel.
Power on / off (green) indicates that mains power is switched on.
PAL, Power Average Limiter (red), indicates that the amplifier is limiting because the
power supply and / or the mains-inlet fuse has reached maximum capability.
Precautions Introduction Front Panel Rear Panel Operation and Performance
AMPLIFIER
TD-14000
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General