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HOW TO AVOID DAMAGE TO YOUR VALUABLE SPEAKERS
All MAGNAT 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
Quantum 908 Quantum 907 Quantum 905
Configuration: 3 way bass reflex 3 way bass reflex 2 way bass reflex
Power-handling capacity: 320 / 560 watts 250 / 400 watts 200 / 350 watts
Impedance: 4 – 8 ohms 4 – 8 ohms 4 – 8 ohms
Frequency response: 18 – 75 000 Hz 20 – 75 000 Hz 21 – 75 000 Hz
Recommended amplifier output: > 50 watts > 50 watts > 50 watts
Efficiency (1W/1m): 91 dB 91 dB 90 dB
Dimensions (WxHxD): 237 x 1330 x 400 mm 230 x 1145 x 345 mm 230 x 1050 x 330 mm
Accessory: Metal spikes Metal spikes Metal spikes
Quantum 903 Quantum Center 916
Configuration: 2 way bass reflex 2 way bass reflex
Power-handling capacity: 140 / 220 watts 140 / 200 watts
Impedance: 4 – 8 ohms 4 – 8 ohms
Frequency response: 28 – 75 000 Hz 28 – 75 000 Hz
Recommended amplifier output: > 50 watts > 50 watts
Efficiency (1W/1m): 89 dB 90 dB
Dimensions (WxHxD): 230 x 385 x 320 mm 600 x 215 x 315 mm