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Details the enclosure type and model (HDH™ 4).
Specifies the frequency range and measurement conditions (300 Hz - 18 kHz).
Indicates the lowest frequency reproduced at -3 dB (300 Hz).
Shows the lowest frequency reproduced at -10 dB (250 Hz).
Details continuous and program power ratings for mid and high sections.
Specifies the sensitivity (1 Watt at 1 Meter) and maximum output.
Describes the horizontal and vertical dispersion patterns at -6 dB.
Provides directivity factor (Q) and index (Dj) for frequency ranges.
Lists the speaker drivers and horns used in the system.
Indicates the crossover frequency (1200 Hz) and type (active).
Specifies the nominal and minimal electrical impedance (8 ohms nominal).
Describes the type and number of input connectors (Cannon EP-4-14).
Details the construction materials (plywood) and exterior finish (carpet).
Explains the mounting provisions (5 fixed flying points).
Provides the physical dimensions of the loudspeaker system.
States the total weight of the loudspeaker system (153 lbs).
Overview of the HDH™ 4 as a two-way, mid-high frequency enclosure.
Details enclosure construction, drivers, and horns for sound reinforcement.
Explains the role of the active crossover/preamplifier in controlling the system.
Explains how beamwidth and directivity are derived from polar plots.
Describes the method for measuring frequency response in an anechoic environment.
Discusses power handling rating methodologies and their relation to real-world situations.
Details the five flying points and steel bracing for secure suspension.
Specifies operating bandwidth, output level (109 dB), and nominal impedance (8 ohms).
Covers power ratings (250W mids, 160W highs) and physical dimensions.
Details angular dispersion (80° H, 40° V) and system weight (153 lbs).
Limits liability to purchase price or $500 and excludes consequential damages.
Clarifies express vs. implied warranties and state-specific variations.
Instructions for mailing the completed warranty registration card.
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