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HECO CELAN GT SUB 322A
The Celan GT Sub 322A active subwoofer visually and acoustically ideally matches the other
loudspeakers in the Celan GT series. Please refer to the separate operating instructions supplied
with this product.
CONNECTING TO AN AV RECEIVER
Figs. 6 and 7 show two different methods of connecting to AV receivers.
Fig. 6: AV receiver without subwoofer output.
Fig. 7: AV receiver with subwoofer output.
HOW TO AVOID DAMAGE TO YOUR VALUABLE SPEAKERS
All HECO loudspeakers are designed and built for optimum sound reproduction with the tone
controls in the central position – i.e. with "linear" amplifier output. Turning up the bass and treble
controls too far delivers more power to the woofers and/or tweeters, and at high volumes this can
actually destroy the speaker units!
If the output of your amplifier is significantly higher than the rated power handling capacity of your
speakers extremely high volumes can physically destroy your speakers. This doesn't actually
happen often but you should be aware that it is possible.
Weak amplifiers with low output ratings can actually be more dangerous for your speakers at
medium volumes because weak amplifiers may overload much faster than powerful ones and this
causes measurable and audible distortion, which is extremely dangerous to your loudspeakers.
Always turn the volume down immediately as soon as you hear distortion! If you like listening to loud
music make sure that your amplifier can deliver at least as much power as the speakers' power-
handling rating.
THE SOUND YOU CAN'T HEAR...
Amplifiers, tuners and CD players can all produce inaudible high-frequency signals – and this
doesn't only apply to cheap products. If your tweeters fail at low or medium volumes you should
have a qualified technician check your system components for dangerous inaudible signals.
MAINTENANCE
The lacquered surface is best cleaned with a mild household cleaner. On no account use furniture
polish or similar products on these surfaces. Please also do not use a microfiber cloth as this may
damage the surface.
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