Revox ICS 82 stereo - Handbuch (Seite 19)

IWS/ ICS 82 Stereo Re:sound I
17
S
EE IN MONO
, H
EAR IN STEREO
Background knowledge
The IWS/ ICS 82 Stereo speaker com-
bines two 2-way speakers in one
housing and as such, it is a true stereo
speaker.
How is this possible?
The IWS/ ICS82 Stereo uses the
frequency-dependant emission
characteristic of dynamic speakers.
The higher the emitted frequency, the
stronger a speaker bundles. An
additional plus point to this
characteristic is that the human ear
can positionalise treble frequencies
but not bass frequencies. As a result,
the positionalisation and therefore the
spatial representation of music is
significantly more influenced by the
treble frequencies or respectively the
tweeter.
The IWS/ ICS82 Stereo has two
completely separated tweeters with
axes that are offset by 37°, which
means that they emit in different
directions, thereby creating a stereo
image.
In the bass range, the right and left
channels are coupled electro-
magnetically through a double voice
coil to a joint bass membrane. Both coils
work electrically separated from each
other but the generated magnetic field
creates the effect of a combined drive
unit.
In terms of the efficiency factor, the
two tweeters and the double voice coil
bass are perfectly matched to each
other and, as if by magic, create the
illusion of true stereo from just one
speaker. This impression can be
further strengthened by the reflection
of sound waves from nearby walls.
Which amplifiers are suitable?
Through its galvanic separation, the
IWS/ ICS82 Stereo is well suited for all
types of amplifier because, from an
electrical point of view, each amplifier
will find two, separate and individual
speakers connected.