LEOPARD OPERATING INSTRUCTIONS
16
Use the information provided in Table 3 as a guide for
selecting the gauge of cables and the circuit breaker ratings
for the system’s operating voltage.
The minimum electrical service amperage required by a
loudspeaker system is the sum of the maximum long-term
continuous current for all loudspeakers. An additional
30 percent above the combined Maximum Long-Term
Continuous amperages is recommended to prevent peak
voltage drops at the service entry.
NOTE: For best performance, the AC cable volt-
age drop should not exceed 10 V (10 percent at
115 V and 5 percent at 230 V). This ensures that the
AC voltage variations from the service entry—or peak
voltage drops due to longer cable runs—do not cause
the amplifier to cycle on and off.
INTELLIGENT AC POWER SUPPLY
LEOPARD’s Intelligent AC™ power supply automatically
selects the correct operating voltage (allowing the
loudspeaker to be used internationally without manually
setting voltage switches), eliminates high inrush currents with
soft-start power up, suppresses high-voltage transients up to
several kilovolts, filters common mode and differential mode
radio frequencies (EMI), and sustains operation temporarily
during low-voltage periods.
Powering on LEOPARD
When powering on LEOPARD, the following startup events
take place over several seconds.
1.Audio output is muted.
2.Voltage is detected and the power supply mode is auto-
matically adjusted as necessary.
3.The power supply ramps up.
4.On the user panel, the Active/Status LED flashes multiple
colors successively.
5.The Active/Status LED turns solid green, indicating the
loudspeaker is unmuted and ready to output audio.
CAUTION: If the Active/Status LED does not
turn solid green, or LEOPARD does not output
audio after 10 seconds, remove AC power
immediately and verify that the voltage is within the
required range. If the problem persists, contact
Meyer Sound Technical Support.
ELECTRICAL SAFETY GUIDELINES
Make sure to observe the following important electrical and
safety guidelines.
•The powerCON 20 connector should not be engaged or
disengaged when under load or energized. Either de-
energize or disconnect the other end of the cable.
•LEOPARD requires a grounded outlet. Always use a
grounded outlet and plug.
•Do not use a ground-lifting adapter or cut the AC cable
ground pin.
•Do not exceed the current capability of the 20 A AC Input
connector for the loudspeaker. When looping loud-
speakers, consider the total current draw for all loud-
speakers on the circuit, including the first loudspeaker.
•Make sure the AC power cable for the loudspeaker has the
appropriate power plug (on the other end) for the area in
which you will operate the loudspeaker. In addition, the AC
Table 3: LEOPARD Current Draw
Current Draw115 V AC230 V AC100 V AC
Idle0.46 A rms 0.35 A rms 0.49 A rms
Maximum Long-
Term Continuous
3.0 A rms 1.5 A rms 3.4 A rms
Burst4.4 A rms 2.3 A rms 5.5 A rms
Maximum
Instantaneous Peak
12.6 A peak 6.3 A peak 14.5 A peak
Earth ground
Chassis ground
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