Amplifier; Ac Power Connector; Voltage Requirement; Current Requirement - K-array Redline KF12MT User Manual

K-array redline series loudspeakers

Table of Contents

KF12MT

7. AMPLIFIER

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.

The KF12MT's switching power supply accommodates AC mains operating at either 115V or 230V. The KMT amplifiers will continue

to operate safely, without interruption, provided the AC voltage remains within 90 - 135V or 190 - 250V (230V), at 50 or 60 Hz.

Please verify that your AC mains connection is capable of satisfying the power ratings for the device.

Do not connect the system to AC power mains exceeding 250V. Doing so will cause

significant damage to the device and create serious risk for users!

The KF12MT 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. The minimum electrical service amperage

required by a K-array loudspeakers system is the sum of their maximum continuous RMS current. We recommend allowing an

additional 30% above the minimum amperage to prevent peak voltage drops at the service entry.

KF12MT max continuous apparent power (VA)

410VA(>10 sec) - 2200VA (<1 sec)

CAUTION

REV. A

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