Bogen HFSF1 User manual

High-Fidelity,
Small-Footprint
Loudspeaker
Model HFSF1
Description
Features
Specifications subject to change without notice.
© 2008 Bogen Communications, Inc.
54-8023-38B 1202
• Superior sound in a very compact enclosure
• Wide-dispersion coaxial driver for broad, even
coverage; superb off-axis response
• Small footprint, visually appealing
• Only 7-1/4" face diameter
• Installs in wide range of ceiling types
• For 70V and low-impedance systems
• Selectable power taps via front-mounted control
(under grille); 16, 8, 4, 2, 1 watts at 70V
• 16-ohm Input setting for low-impedance systems
(selectable via front-mounted control, under grille)
• Quick wiring with removable plug-in connector
• Plug-in connector provides loop-through terminals
for next speaker
• Terminal cover provides knockout for flexible
conduit connection
• Compounded rubber surround for lasting
performance year after year
• Integral mounting clamps tighten quickly and firmly
• Attachment point for seismic safety cable
• Off-white textured finish easily painted to match
room decor
• Available accessories: Tile Bridge Support (TBSF),
Safety Cable (CK10), both sold separately
The Bogen HFSF1 High-Fidelity, Small-Footprint Ceiling Loudspeaker delivers superior sound in a very
compact enclosure. The speaker measures 7-1/4" diameter and mounts easily in all types of ceilings –
including existing hard-surfaced types and suspended type.
Several levels of power output can be controlled directly from the front baffle via a rotary tap selector switch
under the grille. The low-distortion, coaxial-design speaker, coupled with a computer-matched venting
system, delivers superb fidelity for music as well as high intelligibility for voice reinforcement. Coupled with
the Bogen CSUB Ceiling Subwoofer, it provides the perfect solution for environments that require the
highest-quality sound with minimal visual impact.

Frequency Response*:78 Hz to 20 kHz
LF Driver: 4" Polypropylene cone with rubber surround
HF Driver: 3/4" Polycarbonate dome
Sensitivity (1W/1m): 86 dBspl
Dispersion: 150 degrees
Impedance Ratings: Low (16 ohms), High (70V)
Power Input (Max.): 50W at 16 ohms, 16W at 70V
Power Settings†:70V: 16, 8, 4, 2, 1 Watts
Baffle/Bezel Material: Fire-rated (94V0) ABS
Back Enclosure: Heavy-gauge steel
Grille Material: Powder-coated, perforated metal
Color: Off-white, paintable
Terminations 4-Terminal Snap-lock input connector
Product Weight: 4.5 lb.
Dimensions: 7-1/4" Dia. × 7-1/2" D
Accessories Included: Snap-lock input connector (1)
Steel terminal cover (1), with (2) mounting screws
Optional Accessories: Suspension/Safety Cable (CK10)
Tile Bridge Support (TBSF)
* 1/2-Space response (ceiling-mounted), 16-ohm input
†Front panel, switch-selected
Architect &
Engineer
Specifications
Technical
Specifications
50 Spring Street, Ramsey, NJ 07446
201-934-8500 Fax: [phone]
www.bogen.com
The loudspeaker shall be a Bogen Model HFSF1 High-
Fidelity, Small-Footprint ceiling speaker or approved
equivalent, consisting of one 4" (nominal) low-frequency
transducer; one 3/4" (nominal) high-frequency trans-
ducer; and a filter network for dividing frequencies
between the transducers. Frequency response shall be
78 Hz to 20 kHz. Sensitivity, measured 1 watt at
1 meter, shall be 86 dBspl. Max. power input shall be
50W at 16 ohms, or 16W at 70V.
The front baffle shall be injection-molded ABS material
and the enclosure (back can) shall be plated steel. All
components shall be mounted inside the enclosure.
The baffle bezel and perforated steel speaker grille are
off-white. The baffle bezel has a mild texture finish to
promote paint adhesion, if desired
The low-frequency driver shall utilize a molded
polypropylene diaphragm (cone). A compounded rubber
surround shall be formulated to withstand environmental
conditions with high or low heat, high or low humidity,
and ultra-violet light.
The high-frequency driver shall utilize a diaphragm
consisting of black polycarbonate.
Integral swing-out clamps shall provide a secure instal-
lation in the ceiling surface. A safety cable attachment
point shall be included on the side of the steel enclo-
sure. An optional 10-foot long cable kit shall be available
to serve as a backup safety cable (Model CK10).
An optional tile bridge support installation bracket shall
provide additional support when mounting the loud-
speaker in suspended ceilings (Model TBSF).
The input connector shall be a 4-screw pluggable input
connector, providing loop-through terminals for additional
speakers.
The power input selection shall be via a front-mounted
rotary switch, located under the removable grille. High-
impedance tap selections (70V) shall be 16, 8, 4, 2, and
1 watts. A low-impedance 16-ohm input shall also be
available via the rotary switch.
The speaker shall require a minimum vertical clearance
of 7-1/8" from the front surface of the ceiling. Overall
dimensions of the speaker shall not exceed 7-1/4"
Diameter × 7-1/2" Deep. Product weight shall be 4.5 lb.