Bowers & Wilkins CT800 installation manual Description of Controls, Description of controls

Figure 19

LF Contour

HF Contour

Figure 20

C1 C2 C3 C7 C8 C9 C13 C14

T1 T2 T3 C4 C5 C6 C10 C11 C12 S1 S2 S3 S4

Description of Controls

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.

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

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