Extron Electronics SSP 7.1 User Guide - Manual (Page 17)

Volume Adjustment
i
Volume adjust knob and LED bar or Analog input gain level
control and LED bar — Use the rotary encoder to adjust the output
volume from 0 (-100 dB) to 100 (0 dB). The default setting is 50
(-50 dB).
The degree to which the volume is incremented or decremented for
each step the encoder is turned, depends on the current volume
setting (see the last column in the table below).
As the volume increases or decreases, the LED bar lights to indicate the current volume
range, as shown in the table below. As the volume is increased or decreased within a
volume range, the top LED to be lit flashes once. If the knob is turned past maximum
volume, all 8 LEDs flash, for as long as the knob continues to be turned.
Volume steps for
each LED (dB)
LEDs lit Increment
(dB/knob step)
>0 All LEDs blink if user tries to turn knob further
0 All 8 LEDs on
1
-4 to -1 All 8 LEDs on
-9 to -5 Bottom 7 LEDs on
-14 to -10 Bottom 6 LEDs on
-19 to -15 Bottom 5 LEDs on
-29 to -20 Bottom 4 LEDs on 2
-49 to -30 Bottom 3 LEDs on
4
-69 to -50 Bottom 2 LEDs on
-99 to -70 Bottom LED on
5
-100 All LEDs off
Table 1. Volume Level and Lighting of LED Bar
The volume can also be controlled using the SSP 7.1 Setup and Control Software
(see
Master Volume and Mute on page 29).
Analog Input Gain Adjustment
Alternatively, the rotary encoder controls the gain level
of the analog signal on input 5. Analog input gain is
adjustable from 0 dB (fully counterclockwise) to +24 dB
(fully clockwise).
To adjust input gain, press and hold the Input 5 button,
while turning the rotary encoder.
NOTES: • If the gain level is too high, clipping may occur. When clipping occurs, the red
LED above the Input 5 button lights.
• When using Mono or Mono to All listening mode, the left and right signals
are summed (in the digital domain), which can cause a boost in level up to
6 dB. This type of clipping does not cause the clip indicator LED to light but
is audible. If using a mono mode, it is recommended that the input gain be
reduced by 9 dB below clipping to prevent clipping from occurring.
VOLUME
5
CLIP
VOLUME
SSP 7.1 • Features 11