Parts And Functions - Accuphase E-213 Instruction Manual

PARTS AND FUNCTIONS

POWER – Power Switch
1
Depress this switch to turn on the amplifier. Push once more to release
the switch and turn the amplifier off. For an interval of about 6 seconds
after power is turned on, there will be no sound from the speakers, due to the
action of the muting circuit.
SPEAKER – Speaker Selector
2
Serves to select two pairs of speakers connected to the "A" and "B"
speaker terminals.
OFF
Both speaker pairs are turned off, for example for headphone listening.
A, B
The respective speaker pair is active.
A + B
Both pairs of speakers are driven simultaneously. In this case, use speakers
with a rated impedance of 8 ohms or more, as both sets are connected in
parallel.
This position is also used for biwiring a single set of loudspeakers (using
separate cables for the low frequency range and mid/high frequency range).
EXT PRE – Preamplifier/Power Amplifier Separation Selector
3
This selector permits using the preamplifier section and the power
amplifier section of the E-213 separately.
OFF:
Normal operation. Preamplifier and power amplifier are not separated.
ON:
Preamplifier and power amplifier are separated.
Note
m m m m m Do not operate the selector during playback. Always turn the volume
fully down before setting the selector to ON or OFF.
m m m m m The E-213 does not have preamplifier output jacks.
RECORDER – Recorder Selector
4
REC OFF
Select this position during normal operation (when not recording). The amplifier
reproduces the selected program source, but the signal is not sent to the
"REC" outputs.
SOURCE
Select this position when wishing to record. The amplifier reproduces the
selected program source, and the signal is sent to the "REC" outputs.
PLAY
Select this position to reproduce the signal from a recorder connected to the
RECORDER "PLAY" inputs on the rear panel.
MONO – Mono/Stereo Mode Button
5
This button selects stereo or monophonic operation. When the button
is engaged, both channels are combined and the same signal is fed
to the left and right speakers. If the listening position is at approximately equal
distance from the speakers, the sound image should be centered.
m m m m m Button engaged:
MONO
m m m m m Button disengaged:
STEREO
Note
When the MONO position is selected, the recording outputs are also
switched to a monophonic signal.
COMP – Loudness Compensator Button
6
This button serves to restore natural tonal balance at low listening
levels. The human ear becomes less sensitive to frequency extremes
as loudness decreases. This often causes the sound to be perceived as thin
or deficient, especially in the bass range. The COMP switch makes up for this
effect by boosting the low range (+6 dB at 200 Hz).
✽ This boost is applied at a –30 dB setting of the volume control. When you
turn up the volume control, the compensation is automatically reduced.
m m m m m Button engaged:
ON
m m m m m Button disengaged:
OFF
TONE, BASS, TREBLE – Tone Controls
7
TONE – Tone Control On/Off Button
m m m m m Button engaged:
ON
m m m m m Button disengaged:
OFF
✽ When the button is set to ON, the BASS and TREBLE controls can be
used.
✽ When the button is set to OFF, frequency response will be flat, regardless
of the setting of the BASS and TREBLE controls.
BASS – Bass Control
Turning this control to the right from the center (0) position boosts the low
frequency range, and turning the control to the left attenuates it.
m m m m m Turnover frequency:
300 Hz
m m m m m Adjustment range:
±10 dB at 50 Hz
TREBLE – Treble Control
Turning this control to the right from the center (0) position boosts the
upper frequency range, and turning the control to the left attenuates it.
m m m m m Turnover frequency:
3 kHz
m m m m m Adjustment range:
±10 dB at 20 kHz
BALANCE – Balance Control
8
This control serves to adjust the left/right stereo balance.
m m m m m Normally, the control should be left in the center (0) position.
ATTENUATOR – Attenuator Button
9
This button serves to quickly reduce the output level of the amplifier.
The attenuation level is –20 dB.
m m m m m Button engaged:
ON
m m m m m Button disengaged:
OFF
PHONES – Headphone Jack
10
Stereo headphones can be plugged into this jack.
✽ When wishing to listen with headphones only, set the SPEAKERS selector
to OFF.
✽ Adjust the listening level with the main volume control.
✽ Use headphones with an impedance between 8 and 100 ohms.
Note
If the EXT PRE selector is set to "ON" to separate the preamplifier and
power amplifier, the signal at this headphone jack comes from the power
amplifier section. Therefore the volume should be adjusted at the connected
external preamplifier.
INPUT SELECTOR – Input Selector
11
Serves to select the various program sources connected to the rear-
panel inputs. The corresponding buttons on the remote control RC-23
can also be used.
TUNER, CD, LINE
Select components connected to the conventional unbalanced inputs on the
rear panel.
LINE-BAL
Select components connected to the balanced inputs on the rear panel.
OPTION
Component connected to the option board in the OPTION slot on the rear
panel.
m m m m m See the section "Option Boards" in these instructions for more information.
✽ This rotary selector has no marking or end stopper (it can be turned
continuously).
5