LOUD Technologies S218s Operating instructions

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S218s REPAIR MANUAL
S218s REPAIR MANUAL

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These instructions are intended to help restore any ailing S218s Passive Subwoofer
back to factory working conditions. They show how to remove and replace the 18”
woofer.
Please contact Mackie Technical Support (1-800-898-3211) to receive a Service
Request Number and Order Number for the woofer.
Tools needed:
• Phillips head screwdriver.
• 4mm allen wrench.
• Solid workbench.
Parts needed:
• 18” Woofer Part #0010141 pages 3-5
Safety Warnings:
• Make sure that you disconnect all cords before you begin these procedures.
• Always use safety glasses!
• Take care to read and follow these instructions. It may help to read the
instructions prior to the repair to get an idea of what it entails.

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Woofer replacement:
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1Twenty screws need to be removed from the front of the grill using the phillips
head screwdriver. Keep the twenty
screws in a safe place.
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2Eight screws need to be removed from the woofer using the 4mm allen wrench.
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1
2
2
3
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4
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8
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3Keep the eight screws in a safe place. Note: There are two different screws that
connect the woofer to the cabinet.
screws 1-5
screws 6-8
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8
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1
2
2
3
3
4
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5
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6
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5Carefully begin to remove the woofer. Remember, do not rest it on the grill
support below.
Caution: The woofer is approximately
22 pounds with the weight unevenly
distributed.
Woofer replacement continued:
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6The positive (solid blue) and negative (solid black) cables are still attached to
the woofer terminals. Remove the cables
from their terminals simply by pushing
down on the terminal and pulling out the
cable.
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4This woofer has a tendency to want to “pop” out, but it is held in place on
the sides and needs to be guided out
with minimal force. Place a flat head
screwdriver underneath one side of the
woofer. A small crack may be seen on
the cabinet, as circled above; it is best to
wedge the screwdriver here. The wood
on the cabinet should not chip or break
off; it bends rather easily with a little
added pressure. The woofer may then
be removed. Do not rest the woofer on
the grill support just below it. The support
can not handle the weight of the
woofer.
+
+
-
-
push down
push down

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7The picture above shows what the S218s looks like with the grill and woofer
removed. Place the new woofer (part
#0010141) where the old one was. Follow
the same steps as above, but backwards
6 to 1. Power up the S218s and the
new woofer should now be pumping
out glorious lows. Awesome, you just
replaced an 18” woofer!
Woofer replacement continued:

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