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7
CHAPTER 1: INTRODUCTION
HOW TO USE THIS MANUAL
Make sure to read these operating instructions in their
entirety before configuring a system with Acheron
®
loud-
speakers. In particular, pay close attention to material
related to safety issues.
As you read these operating instructions, you will encounter
the following icons for notes, tips, and cautions:
NOTE: A note identifies an important or useful
piece of information relating to the topic under
discussion.
TIP: A tip offers a helpful tip relevant to the topic
at hand.
CAUTION: A caution gives notice that an
action may have serious consequences and
could cause harm to equipment or personnel, or
could cause delays or other problems.
Information and specifications are subject to change.
Updates and supplementary information are available at
www.meyersound.com
.
Meyer Sound Technical Support is available at:
■ Tel: +1 510 486.1166
■ Tel: +1 510 486.0657 (after hours support)
■ Web: www.meyersound.com/support
■ Email: techsupport@meyersound.com
ACHERON SCREEN CHANNEL
LOUDSPEAKER
At the heart of Meyer Sound's EXP line of cinema products
is the Acheron high-performance screen channel loud-
speaker. Optimized for installation behind perforated
screens, the two-way loudspeaker combines the advan-
tages of self-powered technology and innovative horn
design to deliver exceptional, precise coverage for the left,
right, and center sound channels for cinema.
The Acheron loudspeaker is available in two full-range mod-
els: the Acheron 100, with a 100-degree horizontal by 50-
degree vertical horn, which is ideal for wide theatres; and
the Acheron 80, with an 80-degree horizontal by 50-degree
vertical horn, which is suitable for narrow theatres and re-
recording, production, and post-production facilities.
The Acheron horn (patent pending) was specifically
designed for cinema use and features a very soft roll-off out-
side the extremely well behaved coverage angle. The horn is
fixed within the enclosure to ensure an accurate acoustic
crossover, phase response, and an incredibly consistent
vertical pattern between the low and high frequencies. The
Acheron’s 580 Hz crossover point places most of the dialog
in the horn, which is ideal for cinema applications.
!
Acheron 100 Screen Channel Loudspeaker