Data Sheet

Architect &
Engineer
Specifications
Technical
Specifications
The loudspeaker shall be a Bogen Model A12 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 TMA812) 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 x17-7/8" H x 11-3/4" D
Included Accessories Color-matched, Stainless Steel Mounting Bracket
Optional Accessories
Adjustable Tilt-Mount Adapter (Model TMA812)
* Half-space response,
16-ohm input