SPL Channel One 2950, Руководство пользователя

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An individual monitoring mix is important for best working conditions and especially a good
intonation. That is why the Channel One is equipped with a headphone monitor section,
providing a headphone amplifier and a mixing stage to generate an individual mix for the
musician with playback and recording signals.
In general, the headphone monitor section can of course always serve for direct monitoring
of the recording via headphones. Another practical use of the headphone monitor module is
to monitor the signal quality directly to locate and eliminate possible interference rapidly.
PLAYBACK
The PLAYBACK control regulates the volume of the playback signal which is passed to the
musician. There are two methods of passing the mono playback signal: The first is to pass
the music to both ear pieces of the headphone in which case PLAYBACK INPUT LEFT must
be connected. On the other hand some musicians want to hear the playback signal through
only one ear piece so they can hear themselves directly with the other ear (playback signal
only without microphone signal). In this instance connect PLAYBACK INPUT RIGHT and set the
VOLUME control to off (also see page 10, PLAYBACK INPUTS).
VOLUME
The VOLUME control regulates the volume adjustment of the microphone, instrument or
line signal. The setting is independent to that of the OUTPUT control or MUTE switch, which
means the volume in the headphones does not alter although the output value of a modula-
tion has changed.
TIP: When working with hard disc systems or digital mixing consoles latency may be present.
Flanging or phasing effects occur if the musician receives the monitor signal with a time lag.
It is therefore recommended, to obviate latency, that the monitor signal passes directly from
the headphone monitor to the headphones. It should be remembered that the recording
signal has not been picked up again by the playback signal because phase quenching can
occur when the same signal is mixed by both the PLAYBACK and VOLUME controls.
PHONES
Connect headphones to the standard 1/4" (TRS) stereo jack plug on the front panel. The low-
resistance input allows for connection of all usual headphones.
The layout is: Tip =left channel, Ring = right channel, Sleeve = ground.
Make sure that the plug is firmly seated for a solid connection. Reduce volume level before
you remove or plug in a headphone (or when switching headphones).
NEVER plug in a mono
1/4" jack (TS) to the headphone output. The use of a mono 1/4" will lead to a short-circuit
that will destroy the amplifier stage. Standard headphone connectors always have stereo
plugs, and thus a correct connection will be assured when you only connect headphones
directly. Double check that you use stereo 1/4" TRS plugs when you connect headphones via
patchbays or extension cables etc.
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Channel One
Headphone Monitor
Control Elements