Amplifier; Ac Power Connector; Voltage Requirement; Current Requirement - K-array KRM33 User Manual

KRM33

8. AMPLIFIER

8.1 AC POWER CONNECTOR

The amplifier module and any audio equipment connected to it (mixing consoles,
processors, etc.) must be properly connected to the AC power distribution,
preserving AC line polarity. All grounding points should be connected to a
single node or common point, using the same cable gauge as the neutral and
line cables. Bad grounding connections within an audio system can produce
noise, hum and/or serious damage to the input/output stages in the system's
electronic equipment.
Before applying AC to any K-array self-powered speaker, be sure that
the voltage potential difference between neutral and earth ground is
less than 5 VAC.

8.2 VOLTAGE REQUIREMENT

The KRM33 will operate safely, without interruption, provided the AC voltage
remains within 85V - 268V, at 50 or 60 Hz. Please verify that your AC mains
connection is capable of satisfying the power ratings for the device.
CAUTION
Do not connect the system to AC power mains exceeding 270V. Doing
so will cause significant damage to the device and create serious risk
for users!

8.3 CURRENT REQUIREMENT

The KRM33 presents a dynamic load to the AC mains, drawing additional
current as operating levels increase. Different cables and circuit breakers heat
up at varying rates, so it is essential to understand current ratings and how they
correspond to circuit breaker and cable specifications. Maximum continuous
RMS current - measured over a period of at least ten seconds - is used to
calculate the temperature increase in cables, which drives the proper size and
gauge cable and rating for slow-reacting thermal breakers. Maximum burst RMS
current - measured over a period of approximately one second - is used to select
the rating for fast reacting magnetic breakers.
For best performance, voltage drops should not exceed 10% at 115V or 5% at
230V.
11 REV. A