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3. Output mode selection button
(OUTPUT MODE)
Switches between three output modes; unbalanced output,
balanced output and bi-amp output.
Every time this button is pressed, the phase changes as
follows: UNBAL → BAL → BI-AMP → UNBAL → …
• Unbalanced output (UNBAL)
Outputs audio from LINE-1 and LINE-2.
• Balanced output (BAL)
Outputs audio from BAL LINE-1 and BAL LINE-2.
• Bi-amp output (BI-AMP)
Outputs audio from LINE-1 and LINE-2.
LINE-1 (Lch): LOW (Lch)
LINE-1 (Rch): LOW (Rch)
LINE-2 (Lch): HIGH (Lch)
LINE-2 (Rch): HIGH (Rch)
When BAL is selected by the input selector, switching to
BI-AMP is unavailable.
To switch to BI-AMP, switch the input selector to UNBAL
first and then switch to BI-AMP.
Factory default: Unbalanced output (UNBAL)
While switching the output mode, the input/output muting
circuit is activated and no sound is generated.
The preset setting values are stored for each output mode.
4. Balanced phase inversion button
(BAL INVERT)
Inverts the balanced phase that is set with the preset func-
tion of this unit. When the phase of the balanced input and
the balanced output is to be inverted to the preset setting of
this unit, invert the balanced phase of this unit by pressing
this button.
Every time this button is pressed, the phase changes as
follows: NORMAL → INVERT → NORMAL → INVERT → …
The input/output muting circuit is activated and no sound is
generated during the phase switch.
5. External pre button (EXTERNAL PRE)
This is an input selector button that selects the external
pre-input terminals (EXT PRE) on the rear panel.
On: Outputs directly the pre-amplifier or AV amplifier output
signal connected to the external pre-input terminal from the
unbalanced terminal.
Off: Outputs the output signal selected with the input selector.
Holding down this button for 1 second toggles the external
pre-on and external pre-off. The external pre indicator lights
up when external pre-on is selected.
6. Volume control button (VOLUME)
Adjusts the output level of this unit.
Every time this button is pressed, the output level changes.
• Pressing ▲ increases the sound volume.
• Pressing ▼ decreases the sound volume.
7. Mute button (MUTE)
Mutes the sound temporarily.
The sound will be generated and heard when the mute but-
ton is pressed again during the mute.
When the sound volume control is operated during the mute,
the volume level changes but the mute is not released.
8. Dimmer button (DIMMER)
Adjusts the brightness of the input display and the volume
display of the main unit display. The brightness can be
adjusted in 4 steps from no light through normal light.
Each time the dimmer button is pressed, the display
changes as follows. Normal light → Dim → Very dim →
No light → Normal light → …
When no light is selected, “DISPLAY OFF” appears for
1second and then it goes off.
Factory default: Normal light
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