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Introduction
The AMT-12 is designed to deliver high-output
music and sound reinforcement in a lightweight
package. The 12-inch woofer has high sensitivity
to maximize amplifier output. The 1.77-inch
compression driver diaphragm, comprised of an
aluminum alloy for added strength and rigidity,
effortlessly handles the high input levels to match the
woofer. A carefully designed cross-over network
accurately filters each driver for proper matching of
phase and summation in the cross-over region.
The transition is much smoother than other loud-
speakers in this class, making the sound more
accurate and more realistic.
The AMT-15 combines the same high-output
compression driver used in the AMT-12 with a
robust 15-inch woofer. The sound quality is
enhanced further by a richer, dynamic bass response
which extends a full 10 Hz lower. The AMT-15 can fill
larger rooms with more power than competitive
models, and with much more accurate sound.
Single Speaker
The Apogee AMT loudspeakers may be deployed individually by several methods. First, the loudspeakers may be
stacked directly on one another using the built-in feet on each speaker.
Both the AMT-12 and AMT-15 may be mounted on stands using the integrated 35mm (1-3/8") stand mount on the
bottom of the enclosure. Because of the light weight of the AMT loudspeakers, plus the convenient integral handle,
one person can set up multiple speakers on stands easily and quickly.
The loudspeakers may also be suspended by attaching forged eye-bolts to the rigging points of the speakers
(Rigging point: depth 15mm, diameter M8, thread pitch 1.25mm). There are two rigging points located on the speak-
ers’ top and two on the bottom. Plastic screw caps protect the rigging points. The enclosures can be suspended
from these points with stainless steel wire rope or an equivalent approved by a qualified engineer and/or your local
code enforcement office.
Note: The rigging points are only for suspending the speaker itself. Do not suspend other equipment
from the speaker’s rigging points.
Multiple Speakers
The Apogee AMT loudspeakers have a coverage angle of 60 degrees horizontally by 45 degrees vertically. Should
this not be sufficient to properly cover the listening area, or if the acoustic output of a single speaker is not great
enough, multiple AMT loudspeakers may be arrayed to provide greater coverage or higher on-axis SPL. The pre-
ferred method of arraying two loudspeakers is with the Apogee Adjustable Rigging Beam Assembly (Part No. 109-
2140). The rigging beams allow for user adjustment of the splay angle between the cabinets from 0 degrees “Tight
Pack” to 30 degrees of splay.
In a Tight Pack Array, the total coverage of the array will be slightly greater than that of a single speaker. Because of
the overlap in coverage between the speakers in the Tight Pack configuration, the on-axis SPL will increase 3dB. As
the splay angle increases, the on-axis SPL will slowly decrease back to that of a single speaker and the coverage
angle will widen to a maximum of 120 degrees horizontal.
Speaker Mounting
AMT-15
AMT-12
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