Bass Mid And Treb Le Controls; Main-Spkr-Remote Switch; Front Panel Jacks; Dubbing Out - Marantz 2210 Instructions Manual

BASS, MID AND TREBLE CONTROLS
These controls are used to adjust the tonal balance
of program material to suit your individual listen­
ing preference. Each control is of the dual con­
centric friction -coupled type. This permits sepa­
rate control of each channel to compensate for
unbalanced room acoustics or for any other tonal
imbalance in program material. The friction-coupled
feature conveniently allows simultaneous adjust­
ment of both channels. The smaller knob adjusts
the response of the left audio channel, while the
larger knob adjusts the right audio channel.
MAII\I-SPKR·REMOTE SWITCH
These switches select the loudspeaker terminals to
which audio power is fed. The MAIN or the RE­
MOTE stereo pair of loudspeakers may be opera­
ted, either pair, or both simultaneously if both
switches are depressed. With the two MAIN-SPKR ­
REMOTE switches in the normal "out" position,
all loudspeaker terminals are internally disconnec­
ted from the power amplifier sections. The signal
at the headphones jack is not affected by the
MAIN-SPKR-REMOTE switches. The "out" posi­
tion allows "private listening" to stereo headphones.
F R ON
PANEL JACKS
DUBBING OUT
This output is internally connected in parallel with
the rear panel RECORD jacks (1 and 2). Thus, any
signals available at the rear panel jacks are simul­
taneously available at the front panel. You can con­
nect the recording inputs of an external recorder to
this jack, using a standard 3-conductor plug. Plugs
of th is type have an insulated tip, an insu lated ring,
and a sleeve for common return or ground. The tip
of the plug receives the left channel of a program,
and the ring receives the right channel (see Figure 6).
DUBBING IN
This jack has a built-in switch which automatically
disconnects the rear panel PLAY (1 and 2)
jacks when you insert a standard 3-conductor
phone plug . It is intended to receive the playback
outputs of an external tape recorder.
I
LEFT CH A N NE L
COMMON
I
RIGHT CH A N N EL
Figure 6. Stereophone Plug
STEREOPHONES
Th is jack accepts the standard 3-conductor phone
plug used on standard stereo headphones (see
Figure 6 ). It is internally connected to the power
amplifier section through isolation resistors to
provide adequate sound level with popular low
impedance headphones as well as with h igh im­
pedance ones. Two or more sets of headphones
may be used with the aid of "Y" connectors.
The headphone jack output is not affected by the
MAIN·SPKR·REMOTE switches.
SOME SUGGESTIONS ON USING TAPE RE­
CORDERS WITH YOUR MODEL 2270
There are several ways to connect and operate
tape recorders with your receiver. To avoid con­
fusion in the following discussion, reference to
"tape monitoring" assumes that the recorder is
equipped with separate record and playback heads
and separate record and playback preamplifiers.
To further simplify this discussion, a tape reo
corder normally connected to the rear panel
PLAY 1 jacks will be referred to as the "main 1"
recorders. A separate recorder normally
connected to the front panel jacks will be referred
to as the "external" recorder. This general arrange­
ment is illustrated in Figure 7 .
RECORDING AND PLAYBACK
The simplest system involves only one tape recor­
der, whose inputs are connected to the rear panel
RECORD (1 or 2) jacks, and whose playback out­
puts are connected to the corresponding rear panel
PLAY (1 or 2). An equally simple arrangement with
only one tape recorder would be to use the front
panel dubbing IN and dubbing OUT jacks as previ­
ously described.
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