Dynavector SuperStereo Adapter Adp3 - Manual (Page 3)

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Sub-speakers and Speaker Positioning
● A pair of sub-speakers should be positioned face-on
to the front, main speakers and a little in front of the
listening position.
The recommended listening position is behind the line
joining the 2 sub speakers. Most positions behind the line are
likely to be fine thus enabling a number of listeners to enjoy
the benefits of SuperStereo sound. It is best if the distance
between the left and right sub-speakers is rather greater than
that of the front speakers and, as previously mentioned, the
sub-speakers should be located face-on to the front speakers.
This is because the effects gained by having the 2 sets of
sounds collide and mix form an important part of SuperStereo
(in contrast to the positioning of sub-speakers used for other
types of sound systems which conventionally face towards
the listening position). To enhance this mixing effect, the
sub-speakers can be angled in so that they "fire" directly at
the front speakers.
●The height of the sub-speakers is not critical and can be
adjusted to suit room layout and personal preferences.
Typically they will be at about the same height as the mid unit
of the front speakers, but they can be either lower down and
firing upwards, or higher up and angled to fire downwards
towards the front speakers. Please choose the best location
suited to the size and type of your listening room.
(1) Front Speakers
Your existing front speakers should work well in a SuperStereo system. If you intend to replace your front
speakers however, high-performance and smaller size units will give a good SuperStereo performance.
(2) Sub-Speakers
Small speakers with 10-13cm main drive unit are recommended even if large speakers are used for
the front speakers. Large speakers are best not used for sub-speakers, as the sound will then tend
to be rather bloated or boomy and lack definition. The sealed box type of sub-speaker often gives
better results having the advantage that they are acoustically less sensitive to positioning near to room
boundaries. However, the bass reflex type will usually also work well and advantage can sometimes be
had by using felt to plug the port.
The recommended positions for the two pairs of speakers are shown in figure (1). Please be guided
by the following points to ensure that you obtain a SuperStereo performance best suited to your
speakers and listening room. It should be noted that good SuperStereo performance can be obtained
without the need for great precision in the positioning of the sub-speakers or the need for the listener
to be in a particular "sweet spot". The technology is such that, provided the basic guidance is followed,
experimentation in the positioning of the sub-speakers will enable the most life-like and pleasing sound
to be obtained for a particular listening environment.
Choice of Speakers
Speakers Positioning
Figure (1)
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