SPL 9945, Руководство пользователя

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5
Principles
Hookup
A 24 Bit/96 kHz AD/DA module can optionally be provided to enable imme-
diate digital recording.With this AD/DA converter a complete digital insert is
also possible. An additional socket on the Channel One serves the purpose
of delivering a further signal source to the AD converter.
In order to quickly determine all signal conditions, displays for level, gain
reduction, S-detection, clip, warm-up and signal are combined and
contained in a clearly defined display area.
A special feature of the printed circuitry layout is the central star ground
wiring scheme:
Disturbing influences that could affect the ground paths are minimized in
that the audio-ground is separated from the ground of the remaining equip-
ment. This leads, in the truest sense of the word ”clean”, to considerably
improved tonal quality. The scatter free toroidal transformer, manufactured
to SPL tolerances, supplies the equipment with the necessary voltages and
forms the basis for a clean electrical supply to all parts of the circuitry.
Carefully select a place for setting up the Channel One. The unit should be
situated away from heat sources and direct sunlight. Avoid installation in
environments exposed to vibrations, dust, heat, cold or moisture. Keep the
unit away from transformers or motors or any other unit that could generate
large variations in power supply or cause electrical interferences. Do not
install the unit in proximity to power amplifiers or digital processors. You
may consider placing it in a rack containing other analog gear. Such place-
ment can prevent interference from Word Clock, Smpte, MIDI, etc.
• Do not open the case. You may risk electric shock and may damage your
equipment.
• Leave repairs and maintenance to a qualified service technician. Should
foreign objects fall inside the case, contact your authorised dealer or support
person.
• To avoid electric shock or fire hazards do not expose your unit to rain or
dampness.
• In case of lightning unplug the unit. Please unplug the cable by pulling on
the plug only; never pull on the cable.
• Never force a switch or knob.
• To clean the case use a lint-free cloth. Avoid cleaning agents as they may
damage the chassis. Manufactured in standard 19" EIA format, it utilises two
rack units.
• Please support the back of the unit whenever it is being mounted into a 19"
rack (especially important when touring).