Advertisement
TROUBLE SHOOTING
Symptom
Cause
Power LED flashing purple/red and the
If the internal temperature at the PCB level
amplifier is disabled.
should exceed 140°C, the KA-1100 will
automatically shutdown until the unit cools
down. The power LED will flash purple/red
and the amplifier will be disabled until the
LED stops flashing and the unit returns to
normal operation.
Power LED flashing purple/blue.
If the output current exceeds the maximum
peak current of 30A, the KA-1100 will
automatically shutdown briefly. The power
LED will flash purple/blue until the fault has
cleared.
Power LED will flash red/blue and amplifer
In the event of a short circuit at the speaker
turning itself on and off in 10 - 20 second
outputs, this will most likely trigger both
intervals.
protection modes and the power LED will
flash red/blue. If the short circuit persists, the
unit will switch on and off in 10 - 20 second
intervals.
Both limit leds flashing in an alternating
Input signal is too high and is clipping the
strobing pattern.
input to the signal processor of the KA-1100.
KA-1100 will not turn on.
Issue with the mains power source.
Faulty KA-1100 unit.
No audio from the KA-1100.
Incorrect wiring.
No audio from your audio source/receiver.
Faulty KA-1100 unit.
Treatment
Make sure the amplifer ventilation holes are
not being obstructed. If problem persists,
please contact Krix.
Check your speaker cabling is not short
circuiting the outputs. Additionally there
may be a problem with your speakers
short circuiting or presenting a very low
impedance load.
Immediately switch off the unit at the mains
and check your wiring to remove the short
circuit. If problem persists, please contact
Krix.
Turn down level on your receiver/processor
(eg 6dB) and then turn up level on your
KA-1100 amplifier (eg +6dB). This will
produce the same output from your KA-1100
but avoid overpowering/clipping the input
to the signal processor.
If issue persists choose a lower listening
level.
Check your mains power source using
another device.
If problem persists please contact Krix.
Checking unit is wired correctly. Refer to
connection and calibration on page 3.
Refer to your receivers manual to determine
subwoofer is set to on/active during movies
and stereo listening.
If problem persists please contact Krix.
7
SPECIFICATIONS
KA-1100
Product revision
1
Input power
Mains input voltage
100 - 240V AC~ 50/60Hz
Mains input current
2.4 - 1.0A @ 1/8 output RMS power
Mains input power
150W @ 1/8 output RMS power
Idle power consumption
less than 30W
(amplifier active no signal)
Idle power consumption
less than 15W
(signal sense mode)
Standby power
less than 0.5W
(trigger mode)
Output power
Rated maximum
700W RMS per channel one channel driven @ 4 Ohms, 1% THD
550W RMS per channel both channels driven @ 4 Ohms, 1% THD
Mode 1 limit
300W RMS per channel @ 4Ohms
Mode 2 limit
500W RMS per channel @ 4Ohms
Mode 3 limit
700W RMS per channel @ 4Ohms
Maximum peak current
30A
(before shutdown)
Maximum internal operating
140°C
temperature (before shutdown)
Maximum working ambient
40°C
temperature
Modes filters
Mode 1, 2
Low pass filter 50 - 200Hz
Mode 3
Low pass filter bypass
All modes
High pass filter optimised for supported Krix subwoofers
Distortion
THD+N
0.001% - 200W 4Ohms @ 100Hz
Voltage gain
Gain with volume @ 0dB
32dB
Gain with volume @ +6dB
38dB
Voltage out @ rated maximum
53Vrms
Audio inputs
Unbalanced
RCA connector
Balanced
XLR connector
Unbalanced and balanced inputs should not be used simultaneously
Maximum input (unbalanced)
4.5Vrms (6.4V peak)
Maximum input (balanced)
9.0Vrms (12.7V peak)
Input sensitivity (unbalanced)
1.35Vrms @ 100Hz (0dB volume) for rated maximum output
Input sensitivity (balanced)
2.70Vrms @ 100Hz (0dB volume) for rated maximum output
Trigger input
Input voltage range
5 - 18V DC
8
Advertisement
