ELAC SUB 2050 - Troubleshooting; Warranty

Troubleshooting
Symptom Possible cause Remedy
No audible signal
Blown mains fuse Check/replace mains fuse
No mains connection Check mains switch, plugs and socket
No input signal
Check input connections, replace RCA cables, check signal
source (is a dierent audio component fed by the same source
playing correctly?)
Output level too low
Output level from source is
too low (pre-amp, surround
decoder)
Increase output level of pre-amp (min 0.2 Volts), reduce power
amp again to compensate or: slightly reduce gain for main
(center, eect) speakers, to compensate increase master
volume
Max output slightly too low
(living-room)
Placement of subwoofer too
“open”
Place subwoofer in front of a wall or a corner.
Uneven sound Incorrect phase setting
Vary the phase control adjuster, if no signal dierence, move
subwoofer by 0.5 – 2 m and repeat.
Sound during loud tracks some-
what distorted especially loud
buzzing noises in surround mode
Centre or eect speakers are
being overloaded by their
power amps
Reduce center or eect level at surround decoder; use center
mode ‘normal’
Loud hum
Contact problems with
RCA connector (adapter for
extensions)
Check all connections; reduce the level on ELAC sub to -30 dB;
the outer rings of the RCA plugs may have to be adjusted.
Soft hum (during pauses)
Hum from source, ground loop
with RCA multi-connections
Check the ELAC sub for inherent hum: with you ear near the
speaker there may be a slight hum, but none at the listening
position.
Warranty
The conditions of warranty are subject to the laws in dierent countries and regulated by the terms of the respective inter-
national ELAC representatives. If you have not bought your appliances in Germany, please check the terms with your retailer.
Warranty can be covered by any ELAC authorized retailer or the international representative authorized to distribute ELAC
products (EU contract retailers). Should you require service under warranty, the complete appliance, together with the war-
ranty card and the receipt must be supplied to the retailer.
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