Owner`s manual

16
Installing the S90i in the Ceiling
The S90i can also be installed above the ceiling, or under the oor, assuming
you have suitable attic or crawl space access. Although the S90i can t between
standard ceiling or oor joists, we recommend placing the S90i across the joists.
It does not have to be perfectly perpendicular to the joists, but should rest
above (or below) them rather than in between them. This prevents its weight
from being supported by the nished surface of the ceiling (dry-wall, plaster,
etc.).
The S90 should be supported or suspended in a manner that does not subject
it to twisting or torsional forces that would stress the enclosure. No wooden or
metal enclosure should be forced against an irregular surface. If the studs are
curved or warped in an installation the installer must insert shims between the
S90 front panel and the stud surfaces to avoid such stresses as would be the
case for any in-wall loudspeaker.
All the following photos are illustrative of how the speakers would be installed
in an attic space, venting into the room below. (Installing it in the oor is similar,
although you might want to replace the HVAC grille with a grate specically de-
signed for oor registers.)
1. Check your hardware kit to ensure it is complete.
The parts required for in-ceiling mounting include:
Ceiling ange assembly
S90i ange assembly
Two band clamps
HVAC grille (which optionally can be replaced with one that
matches the other grilles used in the home)
The “Bass Snorkel” (an airtight, rigid, expanding tube that
bridges the gap between the S90i and the ceiling)