EN
IN CASE OF MALFUNCTIONS
POSSIBLE CAUSES AND TEST PROCEDURES :
• Very low signal or no signal at all on one
or both channels.
1. Check that the gain/volume is not at
minimum on the preamplifier or that the
«mute» function is not activated.
2. Check that the micro-switch on the back
of your amplifier is in the correct position
(CINCH or XLR).
3. The interconnect audio cable may be
defective or of poor quality. Replace it
with a known and trusted brand.
4. Check that the micro switch on the back
of your amplifier: STEREO or MONO is in the
desired position.
• No signal, both protection LED are reds
Check that the connections to the
loudspeakers are secure and that the
positive conductor strands are not in
contact with the negative conductor
strands at the back of the amplifier and/
or at the speakers. (You may want to test
with a multimeter to make sure there is no
short circuit)
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• Humming noise in the loudspeakers
1. The humming noise may be caused by
a potential problem or a different ground
between the connected devices.
2. Check the condition of the cables
(loudspeakers / preamplifier), the source
used, and the grounding in the case of the
phono PCB.
3. Reverse the outlet of the devices if you
own a F- Shunko strip or outlet .
• The sound is saturated/ both protection
LED are white (clipping mode).
Make sure that the gain on your preamplifier
is not too high to avoid saturation at the
amplifier input stages.
• The low frequencies level is weak and
the sound image is blurred.
1.
Check
the
STEREO/MONO
switch. If both channels (right and left) are
connected to speakers but the STEREO/
MONO micro-switch is set to the MONO
position, the two loudspeakers will be out
of phase.
2. The two loudspeakers may be out of
phase. Check again the polarity and
reverse the connections on the back of
the speakers or amplifier if needed.
micro-