INDIVIDUAL REMOTE TRIGGER INPUTS/TRIGGER OUT
Six +12VDC Trigger Inputs allow each pair of channels to be powered up and muted
independently. +12VDC Trigger Output turns on and mutes additional amplifiers.
FRONT PANEL DISPLAY AND CONTROLS
High-visibility blue LED display and front panel Channel Select and Volume Adjustment controls
make setup easy. Blue Signal LEDS show when audio is present on each input. Red Clipping
LEDS indicate distortion, and make fine tuning the amplifier very straightforward. Five blue
LEDs fire downward to softly indicate Power status.
DIGITAL VOLUME LEVEL SET AND LOCKOUT
All channel volume levels are matched to within 0.3dB, making volume setup easy, accurate,
and repeatable. Volume settings are stored within the D1200's non-volatile memory upon
exiting setup. This means that settings are preserved even when a power outage occurs. A
special multi-button key press can be used to "Lock" the volume settings so that they can not
be tampered with. The user may view their settings when the system is locked, but is unable
to change them.
ADVANCED AMPLIFIER PROTECTION
Each channel of the D1200 is coupled to its respective output binding post via a high power
relay. If the processing circuitry senses a fault condition (over heating, shorted output, etc.)
It will completely disconnect the amplifier channel from the output load. Faulted conditions will
be indicated on the front panel. After finding and correcting the problem causing the fault
condition, simply power the unit OFF and back ON to restore operation.
RACK MOUNT ALUMINUM FRONT PANEL WITH RUGGED HANDLES (D1201)
Amplifier mounts securely to equipment racks. Handles are invaluable when moving, installing,
adjusting or servicing the unit.
CLASS T DIGITAL TECHNOLOGY EXPLAINED
The ultimate objective of any audio amplifier design is to make a high fidelity
amp with
high efficiency and high reliability. There are several basic audio power amp topologies
that have been developed to attain these objectives; Class-A, Class-B, Class-AB, Class-
H, Class-G and Class-D are the most common. The D1200 utilizes proprietary Class-T
topology from Tripath™. Class T combines the best of several of these designs and
minimizes deficiencies in each design as well.
Class-A, Class-B and Class-AB amps have been around for over 50 years. Basically,
these classifications designate the amount of time that the amps output devices conduct
during one, full cycle of a periodic signal. Class-A amps are in a state of conduction 100%
of the time; Class-B amps have a complimentary pair of outputs, which are biased so that
each output is conducting only 50% of the time. Class-AB amps also have complimentary
output pairs but they are biased so that each output is conducting slightly more that 50%
of the time; this lowers crossover distortion. The vast majority of audio amps in use today
PAGE 5
D1200/D1201 INSTALLATION MANUAL & USER'S GUIDE ELAN HOME SYSTEMS
©ELAN Home Systems 2003 All rights reserved 07/03
To Next Page
Loading...
