Wilson Audio WATCH Dog Subwoofer Series-2 - Manual (Page 55)

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16. Using track 2 (pink noise), turn the L & R speakers up to 75 dBC; note the
level setting.
17. While the L & R speakers are playing the pink noise, slowly advance the
output level control on the WATCH Dog until the low frequencies seem to be
in balance with the rest of the spectrum. If you have a spectrum analyzer,
adjust the output level for greatest linearity and extension.
18. Note the output level setting.
19. Next, slowly rotate the Phase control from 90° counter clockwise to 0° and
notice how LF levels will change; note the position between 0° & 90° where
the LF output is greatest.
20.Repeat this process from 90° to 180°, again noting the position where LF
C o n t r o l P a n e l S e t u p - C o n t i n u e d
Figure 9