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CHAPTER 1: INTRODUCTION
HOW TO USE THIS MANUAL
Make sure to read these operating instructions in their
entirety before configuring a loudspeaker system with
HMS-10s. 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 on the
Meyer Sound
®
website:
http://www.meyersound.com
Meyer Sound Technical Support is available at:
■ Tel: +1 510 486.1166
■ Fax: +1 510 486.8356
■ Email: techsupport@meyersound.com
THE HMS-10 SURROUND LOUDSPEAKER
Meyer Sound's HMS-10 is a full-range, two-way loud-
speaker optimized for surround channels in theatres and re-
recording stages. Designed to complement the Acheron™
line of screen channel loudspeakers, the self-powered
HMS-10 maintains a wide dynamic range, full fidelity, and
complete clarity during the most demanding of digital
soundtracks. Boasting a wide frequency range of 55 Hz to
18 kHz and a maximum peak SPL of 126 dB at 1 meter with
very low distortion, the HMS-10 ensures that the full inten-
sity and nuance of cinema surround channels reach each
listener without compromise.
The HMS-10's transducers include a 10-inch low-frequency
long excursion cone driver and a 2-inch high-frequency
compression driver on a symmetrical constant-directivity
80-degree horn that delivers exceptional coverage. The pro-
prietary drivers — designed and manufactured at Meyer
Sound's headquarters in Berkeley, California — are powered
by two channels of onboard amplification that include an
active crossover, driver protection, and frequency and phase
response correction circuitry.
Balanced audio and DC power are received by the HMS-10
from a Phoenix™ 5-pin male connector on its top panel.
Powering the unit from an external source eliminates the
need for wiring conduits while still preserving the advan-
tages of self-powered loudspeaker systems. The HMS-10's
amplifier and signal-processing circuits are designed to
store DC power and tolerate voltage drops, thereby accom-
modating light-gauge cables and lengthy cable runs.
HMS-10 Surround Loudspeaker (Shown without Grille)