Balboa Water Group Balboa Bluetooth Audio - Manual (Page 9)

BBA0914
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We reserve the right to change technical data without further notice.
SWITCH & GAIN SETTINGS:
1) The switches and gain settings are secure behind a water resistant rubber seal. Be sure to
replace the cover when finished with adjustments.
2) The low Pass Filter switch allows the user to optimize bass performance in the case a sub-
woofer is connected to channels 3 and 4. Poly-Planar recommends use of the Poly-Planar MS55
compact box subwoofer for excellent bass response. Push the low pass button in when con-
necting rear channels to subwoofer. Use potentiometer to adjust subwoofer gain.
3) The Bass Gain Trim adjusts the bass level output of channels 3 and 4 when the LPF switch is
depressed. As a rule, keep the gain setting as low as possible while still insuring that the sys-
tem will reach full output power.