Connections; Amplification And Protection Circuitry - K-array KH15 User Manual

6. CONNECTIONS

The KH15 presents a 10k ohm balanced input impedance to a three-pin XLR connector with the following connectors:
pin1 = Ground
pin2 = Signal +
pin3 = Signal -
Use standard audio cables with XLR connectors for balanced signal sources. Make sure that pin 1 (shield) is always connected on
both ends of the cable.
If abnormal noises such as hiss and popping are produced by the loudspeaker, disconnect
speaker. If the noise stops, then most likely the problem is not with the loudspeaker. Check the audio cable, source, and AC power
for the source of the problem.
Audio signals can be easy-chained using the loop output connector on the user panel of the
KH15 with a paralleled input loop, creating an unbuffered hard-wired loop connection. When driving multiple
certain that the source device can drive the total load impedance presented by the paralleled input circuit of the array. The audio
source must be capable of producing a minimum of not distorted 20 dBV (10-Vrms into 600 ohms). The maximum peak SPL over the
operating bandwidth of the loudspeaker is generated by +4dB input signal (1.230 V.

7. AMPLIFICATION AND PROTECTION CIRCUITRY

The KH15 is powered by a high-power 2-channel digital amplifiers (750 watts/ch. RMS) with a total power of 1500 watts. All the
specific functions for the
processor installed inside the amplifier. All K-array loudspeakers are shipped with the drivers in correct alignment. However, if a
driver needs to be replaced, make sure the replacement is reinstalled with the correct polarity. Incorrect driver polarity impairs the
system performance and may damage the drivers.
USER'S MANUAL
CAUTION
!
Shorting an input connector pin to the case can form a ground loop
and cause hum.
KH15 such as crossovers, frequency, phase response, and driver protection are determined by a DSP
the audio cable from the
KH15 . A single source can drive multiple
KH15
).
RMS
in an array, make
P. 8