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CHAPTER 1: INTRODUCTION
HOW TO USE THIS MANUAL
Make sure to read these instructions in their entirety before
configuring a Meyer Sound loudspeaker system. In particu-
lar, pay close attention to material related to safety issues.
As you read these instructions, you will encounter the fol-
lowing 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
HD-1 MONITOR
The HD-1 high definition audio monitor is a self-powered
loudspeaker designed for ultra-precise near-field monitor-
ing. Optimized to approximate a point-source radiator, the
HD-1 yields exceptionally broad directivity with a generous
sweet spot. Its patented circuitry minimizes time delay
response and deviations from linear phase.
The HD-1 incorporates a 2-channel power amplifier and a
sophisticated active crossover with optimized pole-zero fil-
ters for acoustical transparency and a flat frequency
response. The power amplifier features complementary
MOSFET output stages and operates at class A at low to
moderate levels (less than 90 dB SPL) and class AB at high
levels.
The HD-1 delivers a high peak SPL with a dynamic range of
over 100 dB, with extremely low distortion. Its free-field fre-
quency response is flat (within ±1 dB) from 40 Hz to 20 kHz,
with each unit being individually calibrated at Meyer Sound’s
Berkeley, California factory. The HD-1 has an active, bal-
anced input that is switchable between a +4 dBu and
–10 dBV nominal operating level.
HD-1 High Definition Audio Monitor
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