Loudspeaker Service; Spare Parts And Recommended Tool - L-Acoustics SB28 Manuel D'utilisation

8.3

Loudspeaker service

If damaged, an 18" loudspeaker should be removed and replaced as described below. Recone kits are available.
Alternatively, reconing can be performed by L-ACOUSTICS
18" loudspeaker removing procedure
1. Install the SB28 enclosure in the horizontal position, grill on the top.
2. Remove the grill by removing the 2 hex screws located behind the logos.
3. Remove the 8 hex screws and grower washers off the loudspeaker to be replaced.
4. Lift up the loudspeaker and disconnect both red and black cables from the loudspeaker electrical socket: push
on the spring-loaded terminal post, remove the cable, and release the terminal post.
18" loudspeaker replacing procedure
1. On the new loudspeaker electrical socket, connect the red cable to the red-marked terminal post and the
black cable to the unmarked terminal post: push on the spring-loaded terminal post, insert the cable in the
hole, and release the terminal post.
2. Install the loudspeaker and screw in the 8 hex screws and grower washers.
3. Install the grill and screw in the 2 hex screws.
8.4

Spare parts and recommended tool

SB28_UM_ML_1.1
®
Table 4: Available spare parts
HP BM181 18'' speaker - 8 Ω
HS BM181 18'' recone kit
HR BM181 18'' recone kit including labor
SE GRSB28 Complete front assemble
Table 5: Recommended tool for service
5mm hex key
w w w . l - a c o u s t i c s . c o m
(see section 8.4).
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