JVC A-X3 Instruction Book page 9

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. S.E.A. Graphic Equalizer system (A-X4 only)
These five controls allow you to individually boost or
lower five portions of the frequency spectrum by 12 dB.
For operation of these controls, which give far more
flexible control over tone than the conventional bass/treble
controls, see page 17.
MUTING switch (A-X3 only)
Press in (-— ) to mute the sound suddenly (-20 dB), and
the MUTING indicator will light. Use this switch for an-
swering the telephone, for example. Pressing once again
( ML) returns the volume level to that adjusted with the
VOLUME control.
VOLUME control
Controls the volume to speakers or headphones. The scale
is graduated in terms of attenuation in dB in reference to
the "maximum" position.
TAPE MONITOR switch
Press this switch in when listening to tape decks ( -— ). The
tape monitor indicator will light. Then select a tape deck
with the TAPE switch.
Note: "Only those sounds coming from a tape deck will
be heard if this switch is pressed in ( -—). Release
this switch by re-depressing ( 2). Make sure that
the indicator lamp is not lit when you listen to any
other source.
*Press this switch in (-— ) when you monitor the
'recorded sound (listening to the sound being re-
corded) using a three-head tape deck.
. AUX switch
Press in (=) to listen to the source connected to the
AUX terminals. Then the AUX indicator lights.
. TUNER switch
Press in (=) to listen to radio broadcasts. Then the
TUNER indicator lights.
. PHONO switch
Press in (-— ) to listen to records from a connected turn-
table. Then the PHONO indicator lights.
PHONES jack
Plug stereo headphones into this jack for private listening.
Note:Plugging in the headphones does not switch off the
speaker sound. To listen only through headphones,
set the SPEAKERS switches to OFF.
SPEAKERS switches
1: Press in (-™ ) to listen to the speakers connected to
the SYSTEM-1 speaker terminals.
2: Press in (-—) to listen to the speakers connected to
the SYSTEM-2 speaker terminals.
2: Press 1 and 2 switches in (-=) to listen to both
speaker systems simultaneously.
OFF: Re-depressing 1 or 2 switch ( ML) turns off the cor-
responding speaker sound for listening only through
headphones.
SEA switch (A-X4 only)
ON: Press to ON when you wish to activate the S.E.A.
( — ) Graphic Equalizer system.
DEFEAT: Re-depress to DEFEAT when you wish to by-
( ££) pass the S.E.A. circuit.
SEA REC switch (A-X4 only)
Press to ON ( = } to record tapes with the added effect of
the S.E.A. Graphic Equalizer. See page 19.
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LOUDNESS switch (A-X4 only)
At low volumes the tone of sound appears to change. This
is not due to any change in the sound itself, but to the
ear's different sensitivity to sound at low volumes, Press
this switch in (= ) to compensate for this when listening
at low volumes.
LOUDNESS control (A-X3 only)
At low volumes the low end of the sound spectrum ap-
pears attenuated due to the ear's different sensitivity to
sound at low volumes. This continuously variable poten-
tiometer control compensates for this. Turn it clockwise
until you get the desired tone when you are listening at
low volumes. To defeat the loudness control effect, turn
it fully counterclockwise to OFF.
BASS control (A-X3 only)
Turn clockwise to boost bass response, counterclockwise
to decrease bass response.
TREBLE control (A-X3 only)
Turn clockwise to boost treble response, counterclock-
wise to decrease treble response.
TONE switch (A-X3 only)
ON: Press in for ON when you wish to adjust the tone
(-—) with the BASS and TREBLE controls.
OFF: Re-depress for OFF to obtain a standard (flat) fre-
(ML) quency response,
BALANCE control
Balances the volume between the left and right speaker
sounds, Usually set it to the center click position.
MODE switch
MONO: In this position the left and right channel
(—) signals are mixed and reproduced from both
speakers,
STEREO:To hear stereo sound from stereo sources.
(=) Leave this switch at this position for normal
use.
Tape dubbing switch
DUBBING: Press in to dub.
(—)
SOURCE:
(m)
Re-depress to record from discs or radio
broadcasts or the source connected to the
AUX terminals.
Note: Dubbing from TAPE-2 to TAPE-1 is not possible.
TAPE switch
2: Press in to listen to the tape deck connected to the
(— ) TAPE-2 terminals.
1: Re-depress to release for listening to the tape deck
( ML ) connected to the TAPE-1 terminals.
EQ SUBSONIC switch
ON: Press in for ON if ultra-low frequency noise is
(=) noticeable when listening to discs.
OFF: Re-depress for normal listening.
(m—)
MC/MM select switch
MC: Press in when using an MC cartridge hey ing an out-
(—) put of less than 0.5 mV.
MM: Re-depress to release when using an MM cartridge
(4) or an MC cartridge having an output of more than
0.5 mV.
Note: Pressing or re-depressing this switch interrupts the
speaker sound for a few seconds. This is not due
to any defect of the unit, but due ty the opera-
tion of a protective circuit to eliminate unwanted
noise at the instant of switching betwen MC and
MM,