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APPENDIX D: SPECIFICATIONS
NOTE: Loudspeaker system predictions for coverage and SPL are available in Meyer Sound’s MAPP
prediction software.
LEOPARD Specifications
ACOUSTICALLEOPARDLEOPARD-80
Operating Frequency
Range
55 Hz – 18 kHz
Note: Recommended maximum operating frequency
range. Response depends on loading conditions and
room acoustics.
55 Hz – 18 kHz
Note: Recommended maximum operating frequency
range. Response depends on loading conditions and
room acoustics.
Phase Response92 Hz – 18 kHz ±30 degrees 92 Hz – 18 kHz ±30 degrees
Linear Peak SPL133.5 dB with 18 dB crest factor (M-noise), 130 dB
(Pink Noise), 134.5 dB (B-noise)
135 dB with 19 dB crest factor (M-noise), 132 dB (Pink
Noise), 136.5 dB (B-noise)
Note: Linear Peak SPL is measured in free-field at 4 m referred to 1 m. Loudspeaker SPL compression measured
with M-noise at the onset of limiting, 2-hour duration, and 50-degree C ambient temperature is <2 dB.
M-noise is a full bandwidth (10 Hz–22.5 kHz) test signal developed by Meyer Sound to better measure the loud-
speaker’s music performance. It has a constant instantaneous peak level in octave bands, a crest factor that
increases with frequency, and a full bandwidth Peak to RMS ratio of 18 dB.
Pink noise is a full bandwidth test signal with Peak to RMS ratio of 12.5 dB.
B-noise is a Meyer Sound test signal used to ensure measurements reflect system behavior when reproducing the
most common input spectrum, and to verify there is still headroom over pink noise.
COVERAGE
Horizontal Coverage110°80°
Vertical CoverageVaries, depending on array length and configuration
TRANSDUCERS
Low FrequencyTwo 9-inch long-excursion cone drivers; 2 Ω nominal impedance
High Frequency
One 3-inch diaphragm compression driver coupled to a constant-directivity horn through a patented REM
®
mani-
fold; 4 Ω nominal impedance.
AUDIO INPUT
TypeDifferential, electronically balanced
Maximum Common Mode
Range
±15 V DC, clamped to earth for voltage transient protection
ConnectorsXLR 5-pin female with male loop output; XLR 3-pin female connectors available to accommodate only balanced
audio (no RMS signals)
Input Impedance10 kΩ differential between pins 2 and 3
WiringPin 1: Chassis/earth through 1 kΩ, 1000 pF, 15 V clamped network to provide virtual ground lift at audio frequencies
Pin 2: Signal (+)
Pin 3: Signal (–)
Pin 4: RMS (polarity insensitive)
Pin 5: RMS (polarity insensitive)
Case: Earth ground and chassis
Note: Pins 4 and 5 (RMS) included only with XLR 5-pin connector that accommodates both balanced audio and
RMS signals.
Nominal Input Sensitivity6.0 dBV (2.0 V rms) continuous is typically the onset of limiting for noise and music
Input LevelAudio source must be capable of producing +20 dBV (10 V rms) into 600 Ω to produce the maximum peak SPL over
the operating bandwidth of the loudspeaker
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