Bogen HFSF1 Guide

© 2008 Bogen Communications, Inc.
All rights reserved.
Specifications subject to change without notice.
54-2177-01A 0803
High-Fidelity,
Small-Footprint Speaker
Model HFSF1
Installation and Use Manual

Product Description
Thank you for choosing Bogen’s High-Fidelity, Small-Footprint Loudspeaker. Please famil-
iarize yourself with the product by reading and reviewing the descriptions and diagrams
in this manual.
Bogen’s coaxial 2-way small footprint ceiling speaker delivers unsurpassed performance
and value. The HFSF1’s steel back can and front exit tuned venting allow for extended
bass response, enhancing the quality and intelligibility of both speech and music.The very
compact diameter and depth dimensions allow for a wide range of installation possibili-
ties in nearly all ceiling spaces.
The HFSF1can be installed either in suspended ceiling structures or hard
surfaces (such as sheetrock). It comes ready to install with integral swinging arm clamps.
The Bogen support bracket TBSF is recommended for additional support when the
speaker will be installed in suspended ceilings with thin or non-rigid tiles. The optional
bracket can also be used for providing a cutout guide behind a sheetrock ceiling and to
stiffen the edges of the cutout.
A variety of speaker power levels are easily selected via a front panel rotary switch.
Settings for both 70V high-impedance systems and 16-ohm low-impedance systems are
provided.
The HFSF1features a removable snap-lock input connector, providing easy wire con-
nection for input as well as loop-through to the next speaker.
Note: The HFSF1 is not an outdoor speaker. Do not expose the speaker to rain or
moisture.The HFSF1 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 should be 16W @ 70V or 50W @ 16 ohms. 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. Bass Tuning Vent
2. Coaxial Driver Assembly
3. Grille Retention Groove
4. Mounting Clamp Screws (×3)
5. Power Tap Selection Switch
Side Drawing
6. Metal Back Can
7. Snap-Lock Input Connector
8.Terminal Cover
9. Safety cable attachment point
10. Mounting Clamps (×3)
Rear Drawing (close up)
11.Terminal Cover (shown installed)
12. Conduit Knockout
13.Wire Exit Slot
14. Mounting Screws (×2)
Front Drawing
(grille removed)
Side Drawing
Rear Drawing
(close up, terminal cover installed)
1
1
2
3
5
4
6
7
8
10
11 14
13
12
9

Installation
Important Notes
The HFSF1can be installed in a variety of ceiling environments.The use of the TBSF
(Tile Bridge Support) accessory may be desired.
For suspended ceilings, the use of both the TBSF Tile Bridge and CK10
Saftey Cable is strongly recommended to help support and distribute the
weight of the speaker.
The HFSF1requires a minimum of 7-1/8" of vertical clearance between the front of
the mounting surface and any other structure for the speaker to fit.
The edge of the hole must be a minimum of 1-1/4" away from any side obstructions to
ensure that they will not interfere with the action of the clamps.
Beginning Installation
1. Begin by cutting a 6-1/4" circular hole where the speaker will be installed. A
cardboard template is provided with the HFSF1and should be used as a guide
for making the cutout in the ceiling or sheetrock.
2. Tighten the mounting clamps by turning the clamping screws clockwise. Do not
over-tighten the clamps – only tighten until the speaker is snug in the mounting
hole. If using an electric driver, set the clutch on the driver to the lowest setting.
2

Speaker Wiring
All wiring should be done prior to installation
and then plugged into the rear of the speaker.
Wiring is terminated at a snap-lock input con-
nector. There are two positive and two nega-
tive terminals to accommodate daisy-chaining
of speakers in a system.
Daisy-Chaining
The snap-lock input connector allows for easy
daisy-chaining of speakers by providing a sec-
ond terminal of each polarity. See the figures
to the right and below for correct wiring for
daisy-chaining of terminals.
Note: When speakers are daisy-chained, disconnecting one speaker from the chain
will disable all speakers further down the chain.
Speaker Polarity
Keep the same polarity terminals wired together to ensure correct speaker polari-
ty. In order to provide the best possible sound, all speakers in a system need to be
pushing out and pulling in at the same time. Therefore all must be wired with the
same polarity.
If the connections to one speaker in a system are reversed from the others, that
speaker’s movement will be out of polarity with the other speakers.This results in a
loss of low frequency response and will effect the overall performance of the system.
Terminal Cover
• The terminal cover is attached to the back of the speaker using 2 screws. It is
important that both screws be used to mount the covers.
• A half-round hole in the cover allows the wire to exit the speaker while
protecting the connections.A small hole is provided if a wire tie will be used for
strain relief.
• If local codes require the use of a conduit for connections or strain relief of the
connections, a knockout can be removed and a proper fitting installed for the
particular situation.
3

Selecting Power Levels
The front-mounted selector switch is used to
set the appropriate power level or impedance
for your system. Using your fingers or a small,
flat-blade screwdriver, turn the knob until the
pointer indicates the power level you require.
70V Systems
Power setting scales for 70V systems are labeled
on the speaker.
16-ohm Systems
The fully counterclockwise position of the set-
ting switch is the 16-ohm position.This setting is suitable for use with low-imped-
ance amplifiers that typically support 4- or 8-ohm speakers.The speaker’s higher, 16-
ohm impedance makes it easier to combine multiple speakers into series-parallel
networks while keeping the total system impedance at a level suitable for low-imped-
ance amplifiers.
Speaker Grille Installation & Removal
Installation
The speaker grille fits tightly! Push the speaker grille
into the slot until it is fully seated. The edge of the
plastic bezel and the grille will be approximately flush
when the grille is properly seated.
Removal
Insert a small flat-blade screwdriver or a thin pock-
etknife blade between the grille and the bezel about
1/8" deep and gently pry the grille upwards. Do this in
several places around the grille until it is free.
4

5
Specifications
*Half-Space Response, 16-ohm input
† Front panel, switch-selected.
SPECIFICATIONS HFSF1
Frequency Response (-10 dB)*78 Hz to 20 kHz
LF Driver 4" Polypropylene Cone
HF Driver 3/4"Polycarbonate Dome
Sensitivity (1W/1M)*86 dBspl
Power Input (Max.) 50W @ 16 ohms; 16W @ 70V
Power Settings (in watts)†70V: 16, 8, 4, 2, 1
Baffle Material Fire-rated (94V0) ABS
Back Can Material Heavy-Gauge Steel
Terminations 4-Terminal Snap-Lock Input Connector
Included Accessories (1) Snap-Lock Input Connector, (1) Steel Terminal Cover with
(2) mounting screws
Minimum Vertical Clearance 7-1/8" (From front of mounting surface)
Ceiling Cutout 6-1/4" dia.
Speaker Weight 4-1/2 lb.
Speaker Dimensions 7-3/16" dia. x 7-1/2" D

50 Spring Street, Ramsey, NJ 07446, U.S.A.
Tel. [phone], Fax: [phone], www.bogen.com
Accessories
TBSF (Tile Bridge Support)
The TBSF is a combination tile bridge and support bracket that assists in securing the
HFSF1, and in distributing the weight of the speaker in various types of installations.
CK10 (Cable Kit, 10')
The CK10 is a 10-foot cable with one looped end and an adjustable cable clamp. It
is suitable for use as a safety cable.
Limited Warranty
The Bogen High-Fidelity, Small-Footprint speaker, model HFSF1, is warranted to be free
from defects in material or workmanship for three (3) years from the date of sale to the
original purchaser. Any part of the product covered by this warranty that, with normal
installation and use, becomes defective will be repaired or replaced by Bogen, at our
option, provided the product is shipped insured and prepaid to: Bogen Factory Service
Department, 50 Spring Street, Ramsey, NJ 07446, USA. The product will be returned to
you freight prepaid. This warranty does not extend to any of our products that have been
subjected to abuse, misuse, improper storage, neglect, accident, improper installation or
have been modified or repaired or altered in any manner whatsoever, or where the seri-
al number or date code has been removed or defaced.
THE FOREGOING LIMITED WARRANTY IS BOGEN’S SOLE AND EXCLUSIVE WAR-
RANTY AND THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY. BOGEN MAKES
NO OTHER WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, AND ALL
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE ARE HEREBY DISCLAIMED AND EXCLUDED TO THE MAXIMUM
EXTENT ALLOWABLE BY LAW. Bogen’s liability arising out of the manufacture, sale or
supplying of products or their use or disposition, whether based upon warranty, contract,
tort or otherwise, shall be limited to the price of the product. In no event shall Bogen be
liable for special, incidental or consequential damages (including, but not limited to, loss
of profits, loss of data or loss of use damages) arising out of the manufacture, sale or
supplying of products, even if Bogen has been advised of the possibility of such dam-
ages or losses. Some States do not allow the exclusion or limitation of incidental or con-
sequential damages, so the above limitation or exclusion may not apply to you. This war-
ranty gives you specific legal rights, and you may also have other rights which vary from
State to State.
8/10/2004