Bogen A8GRN Specsheet
DescriptionFeatures*
• Indoor and outdoor all-weather speaker with
fully-sealed cabinet
• Available versions: 8-ohm and 70V
• Available colors: black, green, and white
• Metal-alloy MDT™ mid/bass speaker cone delivers
natural sound with ultra-low distortion
• Extremely stable, long-lasting MDT cone structure
• High efficiency and power handling for optimum
performance
• Dual-layer voice coil with separate inner and outer
windings for high output with ultra-low distortion
• Patented MLS™ fluid voice coil suspension
replaces distortion-causing mechanical spider
• Compound rubber surrounds resist UV rays
and salt spray
• Gold-plated, rust-proof connectors
• High-density, injection-molded cabinet resists
chipping and scratching
• Low-resonance cabinet structure
• Easy-to-grasp multi-faceted mounting brackets
with 180
o
swivel
• Easy to grip, oversized mounting knobs
• Brackets mount with knobs attached for easier
and safer installation in hard-to-reach locations
• Heavy-gauge aluminum (A2 & A6 models) or
stainless steel (A8 models) brackets
• Corrosion-resistant driver frames & mounting
hardware
• Attractive styling with “Armadillo” ridges for stiffness
• Coaxial (A2 models) or 2-way speaker
systems (A6 & A8 models)
NEAR A-Series Armadillo
®
loudspeakers feature NEARʼs
unique technologies that improve sound quality and operating
reliability. Attractively styled, they are engineered for both indoor
and outdoor applications. The A8 models are high-output, 2-way
designs for larger spaces such as clubs, auditoriums, and theme
parks. The compact A2 models are designed for smaller spaces.
Their high audio intelligibility and superb articulation make them
ideal for music or paging applications. The A6 models are
conveniently sized, 2-way designs with high power handling for
applications such as restaurants, health clubs, and patio and
pool areas. All models feature NEARʼs MDT (Metal Diaphragm
Technology) and MLS (Magnetic Liquid Suspension).
Unique MDT™ (Metal Diaphragm Technology):
• High rigidity and low mass of metal versus traditional papers
and plastics
• Extremely stable cone structure over long periods of time
• Fast transmission of sound through the diaphragm means
low energy storage
• Special anodizing process creates a ceramic coating for
increased stiffness
• Efficient heat-sinking of voice coils under long-term,
high-power situations
Patented MLS™ (Magnetic Liquid Suspension):
• Voice coil is constantly centered for lower distortion
• Voice coil is more efficiently heat-sinked by fluid instead of air
• Greater linearity is accomplished because the mechanical
spider is eliminated
• Constant lubrication of the gap prevents oxidation from
outdoor use
A-Series
All-Environment
Loudspeaker
Models A8, A8T
Specifications subject to change without notice.
© 2000 Bogen Communications, Inc.
54-8010-01E 1109
* A2 and A6 models described in more detail on separate
specification sheets.
Additional information at www.nearspeakers.com
Technical
Specifications
The loudspeaker shall be a NEAR Model A8 (8-ohm) or
Model A8T (70V) with a power handling capacity of 175W
(8-ohm) or 64W (70V) or approved equivalent. The loudspeaker shall consist of one 8-inch nominal low frequency
transducer and one 1-1/8-inch nominal titanium high
frequency transducer with a filter network for dividing
frequencies between the transducers. A weather-tight
enclosure shall house all components. The enclosure
shall be constructed from an injection-molded, high density (30% or greater) mineral-filled polypropylene material
compounded with UV inhibitors.
Three molded-in colors shall be made available (Black,
White, and Green). Perforated speaker grilles shall be
made from heavy-gauge PVC, color-matched to the
enclosure.
The low frequency driver shall utilize a metal-alloy cone
with deep-anodized surface treatment for rigidity and
corrosion resistance. The cone shall provide a heat transfer element for the voice coil under high-power input.
Compounded rubber cone surrounds shall be formulated
to withstand all-environment installations, including salt
spray, ultraviolet light (UV), heat, cold, and constant
humidity. The voice coil will be centered via a high gauss,
low viscosity magnetic fluid (ferrofluid), which increases
the heat transfer rate from the voice coil under long-term
high-power use. The magnetic fluid shall prevent corrosion from occurring in the magnet gap.
The high frequency driver shall utilize an environmentally
stable titanium diaphragm. Ferrofluid shall dampen the
voice coil and assist in the heat transfer for higher power
capability.
Environmental testing shall ensure long-term operation in
all weather. Specifications shall exceed Mil-Std-810E Test
Methods for Temperature, Humidity, Ultraviolet Light, and
Salt Spray.
The mounting bracket shall be designed with multiple
angles to facilitate installation in corners or when angulation is required. An integral safety strap mounting point
shall be included. The loudspeaker shall rotate about its
axis a minimum of 180
o
. The bracket shall be formed from
heavy-gauge stainless steel (minimum 3mm thick), and
finished with a scratch-resistant paint (color-matched to
the enclosure).
The input connectors for 8-ohm and 70-volt systems shall
be gold-plated screws with integral clamping washers.
Dimensions of each speaker shall not exceed 10-1/4" H x
17-7/8" W x 10" D (with bracket). Product weight shall not
exceed 18 lb. (A8), and 20 lb. (A8T).
Architect & Engineer
Specifications
MODEL NUMBER A8 A8T
Frequency Response (-10 dB)* 45 Hz to 20 kHz
LF Driver 8" MDT Metal-Alloy Cone
HF Driver 1-1/8" Titanium
Sensitivity (1W/1m, 8-ohm) 91 dBspl
Impedance
8-ohm 70V
Power Handling 175W 64W
Additional Taps - 32W, 16W
Product Weight 18 lb. 20 lb.
Cabinet Material Mineral-Filled Polypropylene, UV-inhibited
Speaker Dimensions 10-1/4" H x 17-7/8" W x 10" D (with bracket)
Terminations Gold-Plated, Rust-Proof Barrier Strip
Environmental Meets or exceeds Mil-Std-810E
Included Accessories Color-Matched Aluminum Mounting Bracket
Cabinet Color Black, Green, or White
*
Half-Space Response
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