Bogen S4 S4W 사용자 설명서

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S4W
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페이지 4
Technical
Specifications
The loudspeaker shall be NEAR Model S4 or  S4T with
a power handling capacity of 75 watts @ 8 ohms, or
16W @ 70V input (S4T), or approved equivalent. The
loudspeaker shall consist of one 4-1/2 inch metal-alloy
low-frequency diaphragm transducer and one 1-inch
titanium high-frequency diaphragm transducer.
A crossover network provides dividing and smoothing
of frequencies between the transducers. A mathemati-
cally-aligned and vented molded enclosure shall house
all components. High-density ABS cabinet material and
powder-coated aluminum grille material will assure
long-term cosmetic stability.
The high-frequency driver shall utilize a rigid titanium
diaphragm and integral compounded rubber surround
for proper damping and long-term reliability.
The low-frequency driver shall utilize a metal-alloy
diaphragm with deep-anodized surface treatment for
rigidity and corrosion resistance. The cone shall provide
a heat transfer thermal path for the voice coil under
high-power inputs. Compounded rubber cone surrounds
shall be formulated to provide a high degree of damping
and long-term performance without decay.  
The voice coil will be centered via a high gauss, low
viscosity magnetic fluid (Ferrofluid), which increases
the heat transfer efficiency from the voice coil to the
speakerʼs mechanical structure under long-term high-
power use.  The magnetic fluid shall provide corrosion
resistance in the magnet gap.
The mounting bracket provided with the speaker shall
be designed to provide angular movement horizontally
and vertically to facilitate proper directional coverage. It
shall allow both vertical and horizontal orientation of the
loudspeaker. The bracket shall be formed from cast
metal-alloys with a scratch-resistant, powder-coated
finish. The input connectors for 8-ohm and 70V systems
shall be via a positive pressure-clamping device to facil-
itate connection of the speaker input wires.  
Dimensions of the speaker shall not exceed 5-1/4” W x
8-1/4” H x 5-3/8” D without the bracket attached;
or, 5-1/4” W x 8-1/4” H x 7-3/8” D with the bracket
attached. Weight shall not exceed 5 lbs. for the S4, or
5.75 lbs. for the S4T.
Architect & Engineer
Specifications
Models S4 /S4T
Frequency Response (-10dB)*:
58 Hz to 18 kHz
Low-Frequency Design – Metal-Composite Cone
4-1/2” Nominal Dia.
Utilizing MLS Voice Coil Guidance System
High-Frequency Driver – Titanium Cone:
1” Nominal Dia.
Sensitivity (1W/1m, Avg. 100 Hz - 15 kHz):
86dB SPL 
Dispersion
Horizontal:
150 Degrees
Vertical: 
120 Degrees
Impedance Ratings
Low: 
8Ω Only (S4 version)
High:
70V and 8Ω (S4T version) 
Power Input (Maximum)
75W@ 8 ohms
Additional Taps:
16, 8, 4, 2, 1 watts
Product Weight:
S4: 5 lbs. / S4T: 5.75 lbs.
Speaker Dimensions (WxHxD)
Without Bracket:
5-1/4” H x 8-1/4” H x 5-3/8” D          
With Bracket:
5-1/4” H x 8-1/4” H x 7-3/8” D  
Enclosure Material:
ABS
Product Color:
White (“W” suffix) and Black (“B” suffix)
Mounting Bracket Material:
Aluminum Alloy, Powder-Coated Finish
Grille Material:
Perforated Aluminum, Powder-Coated Finish
Terminations:
Pressure Clamp         
Included Accessories:
Color-Matched Mounting Bracket     
Optional Accessories:
Safety Cable CK10 
*Half-Space Response