ME-51 Subwoofer Amplifier
6
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PO Box 409 Hanover, MD 21076
www.polyplanar.com
(410) 761-4000
poly-planar
Waterproof Marine Audio
Switch & Gain Settings:
13) The switches and gain settings are hidden behind a watertight seal
accessible by removing the 2 screws. Be sure to replace the cover when
finished with adjustments.
14) The INPUT LEVEL switch selects the input sensitivity of the amplifier. If
you are connecting to a LINE level source (typically any RCA type
connection) then the switch should be in the LINE (out) position. When
connecting to loudspeaker outputs or headphone or high level sources
then set the switch to the SPEAKER (in) position.
15) The POLARITY switch allows the user to optimize bass performance due
to interaction with other loudspeakers producing bass in the system.
Play some music with strong bass content and listen with the switch
alternately in the NORMAL and REVERSE position until it can be
determined which setting results in more pleasing bass response. If in
doubt, or if any interaction with other speakers is unlikely, then leave the
switch in the NORMAL position.
16) The GAIN control adjusts the overall level of the amplifier. The level
should be set to achieve a balance with other loudspeakers in the
system. Play familiar music and adjust until the Bass level is to your
liking.
dB GAIN
LINE
SPEAKER
NORMAL
REVERSE
INPUT LEVEL
POLARITY
0
16
8
Figure 5
– Amplifier Switch and gain settings