Easy Install Speaker
Models SM1EZ and SM4T
®
Speaker Layout
The layout of the speakers should be planned before installation
begins. Layout starts in one corner of the room. The first speaker
should be positioned from each wall a distance approximately equal
to the ceiling height of the room.
The next speaker in row
1 should be spaced a distance approxi-
mately equal to twice the height of the ceiling. Each additional speaker in the row should use this same spacing.
Row 2 starts at twice the ceiling height distance from row
1 and
twice the ceiling height from the wall.The other speakers in this row
are also spaced at twice the ceiling height.
Row 3 is again spaced at twice the ceiling height from the previous
row. The first speaker starting this row is positioned at one ceiling
height distance from the wall (similar to row 1).
Continue this pattern of alternating rows until the room is covered.
Because of the wide sound dispersion characteristic of the SM1EZ
and SM4T, exact placement is not critical. The spacing of the speakers can be adjusted so that the speakers are evenly spaced in a row.
Speaker Installation
Step 2
Step 3
Step 4
STEP 1 - Select amplifier system voltage, 25V or 70V, using the
jumper on the circuit board end,opposite the transformer.
STEP 2 - Position the speaker on the ceiling tile and slowly push the
speaker, forcing the studs through the ceiling tile.
NO
TE: When using the SM4T model, set the rotary switch to
the correct wattage tap for the application before mounting
the speaker. Check the back of the SM4T box for the tap settings chart.
STEP 3 - Clean any loose debris or conductive foil from around the
studs. Spin the wide-based wing nuts (supplied) down the
stud.Tighten the wing nuts until they are very snug (finger
tighten only - no tools required).Check that the speaker is
drawn tight to the ceiling tile. Fiberglass sleeves (supplied)
should be placed over the studs at this point to insulate the
exposed portion of the stud as a safety precaution.
STEP 4 - The electrical connections are made to the studs with the
wire nuts (supplied). The studs are color-coded to allow
proper phasing.
Suggested amplifier connections are:
COPPER stud - 70V/25V HOT
NICKEL stud - 70V/25V COMMON
Nylon wire ties (supplied) can be used to secure the speaker wires
to the studs if desired. (Nylon wire ties should wrap around the fiberglass sleeve.)
The speaker will also work perfectly well with these connections
reversed. However, it is important to be consistent in the wiring of
the speakers in the system. If adjacent speakers have reversed wiring
connections, they will tend to cancel each other’s bass response,
diminishing the sound quality.
50 Spring Street, Ramsey, NJ 07446, U.S.A.
Tel. 201-934-8500, Fax: 201-934-9832
www.bogen.com
54-5039-01C Printed in China 0503
© 1999 Bogen Communications Inc. All rights reserved.
Specifications subject to change without notice.
Step 1