Plinius Audio M12 - Manual (Page 3)

PLINIUS M12 Instruction Manual Page 2
The M12 has been designed to operate with medium output cartridges ie 1.5mV and above. The
Volume Control should be set between 10 o'clock and 2 o'clock for normal listening. If required
there is a small jumper located on the Phono Board that can be moved to provide an extra 2db of
gain.
The Balance Control when rotated alters the relative gain between the left and right channels.
Rotating the control to the left shifts the image left and rotating it to the right shifts it right.
The Source Selector allows any of the inputs chosen to appear at the Main Outputs.
The Record Selector allows recording of any chosen source and will not interfere with any source
that is being listened to eg. it is possible to be listening to the CD Input and be masking a
recording from the Tuner. Two Tape decks can be fitted and dubbing in either direction is
possible.
The Phase Invert switch will change the absolute phase 180 degrees. Some recordings sound
better inverted than they do in the normal position due mainly to the recording technique used.
Usually this is 'felt' rather than heard and relates to the music being better focused and defined
than before. Not all recordings are made the same way and so some experimentation is necessary
to find out which is best for you.
As a note of caution, the Model 12 Phono stage is inverting and the switch should be in the
"Invert" position for you to hear the phono output in a 'non inverted' way. This switch also
changes the Balanced Outputs when operated. The high level inputs are all 'non inverting'.
The Mute Switch allows manual muting of the Model12 Outputs. This switch does not override
the automatic mute which is activated when the preamplifier is first switched on or when it is
switched off. The Mute Switch should be used when changing discs and provides an
instantaneous interruption to answer the 'phone etc. It is wise to leave the preamplifier in the
'Mute' position when not in use. This will prevent any unwanted signals reaching the amplifier.
Do not leave the Volume Control at a high level when the preamplifier is in the 'Mute' mode.
Someone may use the system not realising the level is set and a high volume of signal may be
sent to the amplifiers.
When the Model12 is in the 'Mute' position the LED on the front will be slightly less bright than
when operated.