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Denon PMA-300V Operating Instructions Manual page 5

Pre-main amplifier
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Available languages

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ENGLISH
PHONES
(Headphone Jack)
This jack is used to plug in the headphones.
SPEAKERS
(Speaker Selection Switch)
The PMA-300V
can be connected to two speaker systems: speaker system A and speaker system B.
When A is pressed, the speaker system connected to speaker output terminals A operates.
When B is pressed, the speaker system connected to speaker output terminals B operates.
:
When A
and B are pressed on together, both speaker systems operate simultaneously.
When
the
A and B switches are both off (in the out position), there is no output from the speaker terminals.
This setting is used to listen to playback through the headphones.
BASS
(Bass Control)
This knob is used to control the base quality of the sound. When the knob is set at the center posi-
tion, the frequency characteristics are flattened in the range below 1000 Hz. The bass is emphasized
as the knob is moved off center to the right ( ©), and reduced as it is moved to the left (©).
TREBLE
(Treble Control)
This knob
is used to control
the treble quality of the sound. When
the knob is set at the center
position, the frequency characteristics are flattened in the range above 1000 Hz. The treble is empha-
sized as the knob is moved off center to the right ( ), and reduced as it is moved to the left ( ©).
BALANCE (Balance Control)
This knob is used to adjust the balance between the left and right channels. When it is set to the
center position, the amplitude of the amplifier is equal on both sides. If there is a difference in the
left and right channel output voltages for a cartridge, move the knob to the left and the right to ad-
just it. If the volume on the right side is too low, turn the knob to the right ( 4 ). If the volume on
the left side is too low, turn the knob to the left ( ( ). This will achieve an even balance on the left
and right sides.
SUBSONIC (Subsonic Filter Switch)
This switch cuts off low audio frequencies in the range below 16 Hz.
It is used to eliminate extremely
low frequency speaker vibrations caused by a warped record or
turntable motor vibrations. Therefore, when ''Phone'' is used, it is recommended
that the switch be
turned on ( =m ).
LOUDNESS
(Loudness Switch)
When the volume is low, it is difficult for the human ear to clearly distinguish notes in the low and
high frequency ranges. The loudness switch allows a simple ''one-touch" correction of this difficulty.
Press the loudness switch ON
( «= ) when listening to music at a low volume. The low notes and high
notes wil! be corrected to produce a natural sound.
CARTRIDGE
(Cartridge Selection Switch) .. . Back Panel side
This switch is set according to the type of player cartridge to be used.
@
MC:
Used when an MC (moving-coil) cartridge with an output of less than 0.5mV is used.
@
MM:
Used when an MM (moving-magnet) cartridge with an output of 2mV or more is used.

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