8
VOLUME
BALANCE
MUTE
CLIP
POWER
REC
VIDEO
TV
TUNER
CD
AUX 1/PHONO
AUX 2
IR SENSOR
HEADPHONE
DIGITAL
ANALOG
D1
Select
D2
D3
D4
2
3
4
6
5
1
7
8
9
Front Panel
1. Input LEDs
Each input button has a corresponding LED
immediately above it which lights green when
that input is activated.
When the first LED (Digital > Select) is lit
concurrently with an LED under D1 through D4,
the digital input is engaged.
2. Input Select
Each button corresponds with input jacks on
the rear panel. Press a button to select the
corresponding connected source component.
B135³ DA:
To select a digital input. First press
AUX2, then press the desired digital input D1-
D4. The Select LED will light along with the
corresponding digital input LED.
3. IR Sensor
Signals from infrared remote control units such
as Bryston BR-2 are received here.
4. Headphone Output
This jack accepts 1/4” TRS headphones and is
driven directly from the preamplifier section
utilizing separate headphone buffers. Inserting
a headphone plug into the jack mutes the
loudspeakers automatically (indicated by the
mute LED on the front panel turning red). The
Preamp Output is also muted. Output level is
governed by the volume knob. The headphones
cannot be muted with the remote control unit
or the front panel Mute. Only headphones with
impedances of greater than 50 ohms should be
used.
5. Balance Adjust
When the left/right signal balance is being
shifted one of these LEDs will light green to
indicate which channel is being attenuated.
Balance can be adjusted in 1dB increments to
up to -6dB in either direction. Stepping past
-6dB in either direction will mute that channel
fully and the LED for that channel will turn red.
When both LEDs are red, PASS THROUGH mode
is indicated.
6. Volume Adjust
Rotate this knob counter clockwise to reduce
the output volume at the loudspeakers and
Preamp Output. Rotate the knob clockwise to
increase output level.
7. Mute
Press Mute to cut output to the attached
loudspeakers and the Pre Amp out jacks. When
in a mute state, the LED will light red.
8. Clip Indicator
This LED flashes red when the input level is too
high and the amplifier can no longer output
an undistorted signal. Reduce the volume at
once to prevent damage to the amplifier and
loudspeakers. If you regularly see the clip light,
you require a more powerful amplifier to satisfy
your desired playback volume.
