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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.
SPECIFICATIONS
Aleva 400 Aleva 200
Configuration: 2 1/2-way bass reflex 2-way bass reflex
Power-handling capacity: 120 / 200 W 80 / 140 W
Impedance: 4 – 8 ohms 4 – 8 ohms
Frequency response: 30 – 42000 Hz 36 – 42000 Hz
Recommended amplifier output: 30 – 200 W 20 – 130 W
Efficiency (1W/1m): 90 dB 89 dB
Dimensions (WxHxD): 170 x 980 x 270 mm 170 x 285 x 270 mm
Accessory: metal spikes
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