Connecting To An Av Receiver; How To Avoid Damage To Your Valuable Speakers; The Sound You Can’t Hear - Heco CELAN 800 Owner's Manual

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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.
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