Bowers & Wilkins CT800 User Manual
Page 18

Description of controls
The unit features a comprehensive set of controls to tune the performance of each speaker according to the
conditions of use. The response may be shaped by a combination of three parametric equalisers, each having
a level range of +4.5 / -12 dB, and low- and high-frequency contour controls, the effects of which are illustrated
in figure 19. In addition, level controls are provided to compensate for any differences in gain between both the
subwoofer and LF power amplifiers compared to the MF/HF power amplifier.
To access the front of the unit, pull off the decorative facing plate.
Description of Controls
LF Contour
HF Contour
Figure 19
17
Refer to figure 20 for the layout of the inputs and controls, which have the following functions:
T1
Test input socket (unbalanced)
To connect external signal generator
T2
Test input socket (balanced)
To connect external signal generator
T3
Output level indicator lights
To balance levels
C1
Low-frequency contour control
± 6dB see figure 19 top graph
C2
High-frequency contour control
± 4dB see figure 19 bottom graph
C3
Parametric filters-overall gain
C4
Parametric filter 1-gain
+4 / -12dB
C5
Parametric filter 1-Q
0.5 - 5
C6 Parametric filter 1-frequency
30Hz - 500Hz
C7
Parametric filter 2-gain
+4 / -12dB
C8
Parametric filter 2-Q
0.5 - 5
C9
Parametric filter 2-frequency
30Hz - 500Hz
C10 Parametric filter 3-gain
+4 / -12dB
C11 Parametric filter 3-Q
0.5 - 5
C12 Parametric filter 3-frequency
30Hz - 500Hz
C13 LF output gain
C14 Subwoofer output gain
S1
DIP switch bank 1
See table
S2
DIP switch bank 2
See table
S3
DIP switch bank 3
See table
S4
DIP switch bank 4
See table
Figure font: Helv 45, 7pt
Figure spacing: 7 x 7 mm
Figure 20
Figure 21
T1
T2
T3
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10 C11
C13
C12
C14
S1
S4
S2
S3
+
+
+
+
Figure 20