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 surface is best cleaned with a mild household cleaner. On no account use furniture polish or similar
products.
SPECIFICATIONS
Configuration:
Power-handling capacity:
Impedance:
Frequency response:
Recommended amplifier output:
Efficiency (1W/1m):
Dimensions (WxHxD):
Accessory:
Configuration:
Power-handling capacity:
Impedance:
Frequency response:
Recommended amplifier output:
Efficiency (1W/1m):
Dimensions (WxHxD):
Subject to technical change.
QUANTUM 727
3-way bass reflex
200 / 350 W
4 – 8 ohms
20 – 52 000 Hz
> 30 W
93 dB
290 x 1100 x 310 mm
Metal spikes
QUANTUM 723
2-way bass reflex
110 / 180 W
4 – 8 ohms
30 – 52 000 Hz
> 20 W
91 dB
200 x 355 x 310 mm
9
QUANTUM 725
2 1/2-way bass reflex
180 / 320 W
4 – 8 ohms
22 – 52 000 Hz
> 30 W
92 dB
290 x 1030 x 310 mm
Metal spikes
QUANTUM CENTER 72
2-way bass reflex
120 / 200 W
4 – 8 ohms
32 – 52 000 Hz
> 20 W
91 dB
518 x 185 x 310 mm