Architect &

Engineer

Specifications

Technical

Specifications

The loudspeaker shall be a Bogen Model A

12 with a

power handling capacity of 225W (

16-ohm) or 128W

(70V) or approved equivalent. The loudspeaker shall

consist of two 6.5" nominal low-frequency transducers

and one

1.9" nominal mylar high-frequency transduc-

er with a filter network for dividing and smoothing

frequencies between the transducers. A mathemati-

cally-aligned, vented enclosure shall house all

components. All vents shall be further protected from

water ingress by acoustically transparent fabric

designed to shed water. The enclosure shall be con-

structed from an injection-molded, high-density (30%

or greater) mineral-filled polypropylene material com-

pounded with UV inhibitors.

Enclosure shall be molded in black. Surface shall be

able to accept paint. Perforated speaker grilles shall

be made from color-matched perforated polypropy-

lene, also able to accept paint if required.

The low-frequency drivers shall utilize a metal-alloy

cone with deep-anodized surface treatment for rigidi-

ty 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 withstand all-

environment installations, including salt spray, ultravi-

olet light (UV), chlorine exposure, 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 Mylar diaphragm. An integrated horn and

phase compensation device shall provide increased

output sensitivity and controlled coverage of the output.

The mounting yoke provided with the speaker shall be

designed with a built-in angle to facilitate installation

when downward angulation is required, as well as

180-degree left-to-right adjustment. The yoke shall be

formed from heavy-gauge stainless steel (minimum

3mm thick), and finished with a scratch-resistant

paint. In addition, an optional Adjustable Tilt-Mount

Adapter (Model TMA8

12) shall be available which

provides additional angles for precise orientation ver-

tically over

18 specified points.

The input connectors for

16-ohm and 70-volt systems

shall be gold-plated, rust-proof screws with integral

clamping washers.

Dimensions of the loudspeaker shall not exceed

10-1/4" W x 17-7/8" H x 11-3/4" D. Weight shall not

exceed 22 lb.

SPECIFICATIONS

A12

Frequency Response (-

10 dB)*

55 Hz to

17.5 kHz

LF Driver

Dual Metal-Composite 6.5" Cone Woofers,

MLS Voice Coil Guidance System

HF Driver

Weatherproof

1.9" Mylar Diaphragm

Constant Directivity Horn,

1" Exit

Sensitivity (

1W/1m)

94.5 dBspl

Dispersion

90° Horizontal, 45° Vertical

Impedance Ratings

Low (

16 ohms) / High (70V)

Power Input (Max.)

225W @

16 ohms; 128W @ 70V

Power Settings (in watts)

70V:

128, 64, 32, 16, 8

Grille Material

Perforated Polypropylene

Cabinet Material

Black, Mineral-filled Polypropylene, with UV Inhibitor

Terminations

Dual 4-Terminal Barrier Strips with Gold-plated,

Rust-proof Screws

Product Weight

22 lb.

Speaker Dimensions

10-1/4"W x 17-7/8" H x 11-3/4" D

Included Accessories

Color-matched, Stainless Steel Mounting Bracket

Optional Accessories

Adjustable Tilt-Mount Adapter (Model TMA8

12)

* Half-space response,

16-ohm input