A2T BOGEN | Alldatasheet
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Technical content
Indoor and outdoor all-weather speaker with fully-sealed cabinet Available versions: 8-ohm and 70V Available colors: black and white Metal-alloy MDT mid/bass speaker cone delivers nat- ural 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 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 bracket Corrosion-resistant driver frame & mounting hardware Attractive styling with “Armadillo” ridges for stiffness Coaxial speaker system Bogen’s A-Series "Armadillo" loudspeakers feature unique tech- nologies that improve sound quality and operating reliability. Attractively styled, they are engineered for both indoor and out- door applications. The compact A2 models are designed for smaller spaces. Its high audio intelligibility and superb articulation make it ideal for music or paging applications. The A2 model also features MDT (Metal Diaphragm Technology) and MLS (Magnetic Liquid Suspension). 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 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 Specifications subject to change without notice. © 2014-2015 Bogen Communications, Inc. 54-8008-01E 1505 A-Series All-Environment Loudspeakers Models A2, A2T
The loudspeaker shall be a Bogen Model A2 (8-ohm) or Model A2T (70V) with a power handling capacity of 100W (8-ohm) or 16W (70V), or approved equivalent, loudspeaker consisting of one 6-inch nominal low frequency transducer, one 1/2-inch nominal high frequency transducer mounted coaxially, 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. Two molded-in colors shall be made available (Black and White). Perforated speaker grilles shall be made from heavy-gauge PVC, color-matched to the enclo- sure. 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 environmen- tally stable polycarbonate 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 any weather. Specifications shall meet or 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 angu- lation is required. An integral safety strap mounting point shall be included. The loudspeaker shall rotate, on its axis, a minimum of 180 o. The bracket shall be formed from heavy-gauge aluminum (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 9" Wide x 8" Diameter x 8-1/4" Deep (with knob & bracket). Product weight shall not exceed 8 lb. (A2), or 10 lb. (A2T). Architect & Engineer Specifications MODEL NUMBER A2 A2T Frequency Response (-10 dB)* 58 Hz to 17 kHz LF Driver 6" MDT Metal-Alloy Cone HF Driver 1/2" Polycarbonate Sensitivity (1W/1m, 8-ohm) 88 dBspl Impedance 8-ohm 70V Power Handling 100W 16W Additional Taps - 8W, 4W Product Weight 8 lb. 10 lb. Cabinet Material Mineral-Filled Polypropylene, UV-inhibited Speaker Dimensions 9" W x 8" dia. x 8-1/4" D (with knob & bracket) Terminations Gold-Plated, Rust-Proof Barrier Strip Environmental Designed to meet or exceed Mil-Std-810E Included Accessories Color-Matched Aluminum Mounting Bracket Cabinet Color Black or White * Half-Space Responses
-12 -18 -24 -30 -36 120 150 180 210 240 270 300 330 -20 -10 +10 50 100 1000 10000 -12 -18 -24 -30 -36 120 150 180 210 240 270 300 330 Off-Axis Response Because the A2 has a co-axial design, all off-axis responses, horizontal & vertical, are the same. Frequency Response (Half-space @ 1m) Polar Response 16W 1W/8-ohm 40 deg 30 deg 20 deg 10 deg 0 deg 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz 16 kHz (dBspl) (Hz) (dB)
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