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3.3 Defining the Soundstage
A common problem we find with many set-ups is a tendency to
separate the speakers too far from each other. This gives an
unnaturally stretched soundstage between
the two speakers, and
creates problems with focus. The key problem is a lack of soundstage
information beyond
the left and right sides of the speakers.
If you find that the sound is not spacious enough or you are not getting
enough front to back depth, pull the speaker away from the front wall.
This is typically preferable to separating the two speakers too far, and
will almost always give you better depth and soundstage information.
A word of caution though: if you move the speakers too far from the
front wall you may lose the focus of the image.
3.4 Appropriate Mid-bass Balance
Yet another problem is a lack of mid-bass energy. In order for the
appropriate amount of mid-bass energy to be present, the speakers
should be close enough together to achieve proper "coupling" of the
midrange ribbon drivers. Coupling is desirable in the lower
frequencies
from the mid-bass on down. This simply means that the left and right
drivers "work together" as opposed to working independently.
With the broad wings of the Genesis 1.1, we have not found this to be a
problem. However, if the gap between the two towers is more than 7
feet, you will find that the speakers lose coupling, and the mid-bass
suffers.
If you find there isn't enough deep bass, your first remedy is the
volume control on the woofer amplifier. This has several limitations.
First, turned up too high, you may get some distortion on very low
frequencies or you may overheat the amplifier.
Push the woofer towers back towards the rear wall. This will increase
the coupling of the woofers to the room. Do this procedure in small
increments (approximately one inch at a time), and return often to the
recordings you have used to adjust the front to back depth and
soundstage properties of your system. It is easy, yet unproductive, to
go too far in one direction. If you move the woofer towers too far from
the rear wall you may lose low bass extension, too near and you may
get too much wall reinforcement.
Secondly, you may make the mid-bass produced by the top range of
the woofer out of proportion with the mid-bass produced by the bottom
range of the midrange ribbon. This would tend to sound slow or thick in
