Bogen CSUB User Manual
© 2008 Bogen Communications, Inc.
All rights reserved.
Specifications subject to change without notice.
54-2171-01B0810
Ceiling Subwoofer
Model CSUB
Installation and Use Manual
2
Product Description
Thank you for choosing Bogen’s CSUB Ceiling Subwoofer. Please familiarize yourself with
the product by reading and reviewing the descriptions and diagrams in this manual.
Bogen’s CSUB delivers unsurpassed performance and value. This subwoofer can be
installed either in suspended ceiling structures or hard surfaces (such as drywall). It is
ready to install with swinging arm clamps that take the place of a tile bridge for installation in suspended ceilings.
A variety of speaker power levels are easily selected via a front panel rotary switch.
Settings for both 70V and 8-ohm systems are provided.
The CSUB features a removable snap-lock input connector, providing easy wire connection for input as well as loop-through to the next speaker.
NOTE
The CSUB is not an outdoor speaker. Do not expose the CSUB to rain or moisture. The
CSUB should only be installed by qualified personnel.
Important Safety Instructions
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance with manufacturer’s
instructions.
8) Do not install near any heat sources such as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that produce heat.
9) Only use attachments/accessories specified by the manufacturer.
10) Recommended amplifier for 64W @ 70V use should be 65W @ 70V. Higher-
power amplifiers should be used with additional current limiting, such as a fuse.
11) Refer all servicing to qualified personnel. Servicing is required when the apparatus has
been damaged in any way, such as power supply cord or plug is damaged, liquid has
been spilled or objects have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate normally, or has been dropped.
To prevent injury, this apparatus must be securely attached to the ceiling
or wall in accordance with the installation instructions.
Product Diagrams
Front Drawing (grille removed)
1. Driver Assembly (internal)
2. Bass Tuning Vent
3. Grille Retention Groove
4. 24
" Ceiling Tile Guide Arrows (×2)
5. Power Tap Selection Switch
6. 14-1/2" Joist Space Guide
Arrows (×2)
7. Mounting Clamp Screws (×4)
Side Drawing
8. Metal Back Can
9. Snap-Lock Input Connector
10. Terminal Cover (side view)
11. Mounting Clamps (×4)
Rear Drawing
12. Safety Tether Point
13. Snap-Lock Input Connector
14. Terminal Cover (top-down view)
15. Wire Exit Slot
16. Terminal Cover Anchor Screw
(×2; one on back,
one below connector)
Front Drawing
(grille removed)
Side Drawing
1
Rear Drawing
2
3
5
7
8
9
13
14
15
3
12
16
6
4
10
11
4
Speaker Placement
The low frequency capability of the CSUB allows great flexibility in its placement. While
full-range speakers will typically be installed throughout the ceiling in an evenly spread
pattern, the CSUB can be placed wherever it is most convenient. This usually means
where the subwoofers best meet the needs of the overall sound system, or may sometimes mean where they best fit into the ceiling. This flexibility is useful in irregularlyshaped rooms or when the depth of the area behind the ceiling surface varies.
An important performance parameter to keep in mind is that the location of the subwoofer will affect its output sound pressure level (SPL) within a room. Locating the CSUB
close to a wall will increase its output by approximately 3 dB over locating it toward the
center of the ceiling area. The 3 dB increase will effectively double the amount of output
power coming from the subwoofer. Locating the CSUB in the corner of a room, adjacent
to 2 perpendicular wall surfaces, will increase its output by 6 dB. This 6 dB increase effectively quadruples the output of the subwoofer compared with locating it closer to the
center of the room. The tradeoff for this extra output is a less uniform overall sound
level, especially in large rooms.
Three possible locations for a CSUB Subwoofer
within a larger sound system:
1
23
Note:The CSUB may be placed as close as 5" from a wall, provided care is taken to
ensure that mounting clamps are properly extended (see Installation section). If mounting clamps cannot be properly extended, another location must be found.
Center of Ceiling: Optimum Bass Distribution
Most Uniform Sound Level
CSUB
Near Corner: + 6 dB Output
CSUB
Near Wall: + 3 dB Output
CSUB
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