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Frequently Asked Questions
• • Why do planar-ribbon loudspeakers sound louder than ordinary loudspeakers of the same sensitivity?
They sound louder because the attenuation of the sound wave during its travel through the air is smaller, due to the greater dimensions of the planar loudspeaker drivers (membranes and ribbons).
Theory stipulates that, with the exception of a small area close to the sound source called "near field", the sound wave experiences a drop of its amplitude by 6 dB for any doubling of distance.
The near field extends to roughly 3 times the dimension of a loudspeaker.
A comparison of the loudness for two different loudspeakers of the same sensitivity according to the distance from a listener is presented in the following table.
Distance: 1m 2m 4m
This means that although at a 1-meter distance both loudspeakers sound the same, at 4 meters the planar loudspeaker sounds twice louder.
• • How should I place my planar loudspeakers?
Planar loudspeakers should be clear from the furniture and the wall behind them.
These loudspeakers sound best by keeping the rule of:
If the room is narrow, the loudspeakers could be brought close to the side walls to about a distance of 20 cm.
They should be placed at the same level turned slightly towards the listener and with the tweeters in the "inside" part of the loudspeakers.
In any case, please feel free to experiment with the positioning.
• • What is the recommended power of the amplifier?
100 watts are in many cases enough. This much depends on your room, specific listening tastes, as well as the loudspeaker model used.