6
It may take several days before you are completely satisfied that you have found the
final best setting. Your acuteness and ability to perceive very subtle differences will
improve over these days, possibly because you may not have previously had the
opportunity to hear very deep bass in your room. With the ABC you can site
STENTOR almost anywhere you choose. If the bass sounds too prominent, simply
reduce one of the filter controls a notch. If there is a “hole” , increase one of the
filter controls until it is filled in.
STENTOR has a phase reversal switch to allow partial cancellation of the
frequencies around the crossover point between the two systems. Simply listen to
the quality of the bass with the phase normal and inverted. Choose the position
which subjectively offers the tightest and cleanest bass. This switch also allows
you to ensure that any phase reversal within your power amp can be corrected
(where the main speakers should then be connected deliberately in reversed
phase). Doing this will ensure correct absolute phase of your system.
It is often surprising just how much effect the room is having on the bass response.
Sometimes even quite small speakers appear to need very low settings of the ABC.
If this is the case, accept it and feel pleased that your stereo imaging extends down
so far. It is always better to try and set up for a subtle, rather than an overblown
effect if possible. However, personal taste is the over-riding factor here. If it suits
your ears, it is correct.
STENTOR is designed as a true sub-bass speaker. It is designed to reproduce
those exceptionally deep notes that are felt rather than heard. This it will attempt to
do at whatever volume you set on the gain control on its panel. If set too high the
driver cone will simply run out of movement with the lowest notes, causing a “crack”
to be heard. If this warning is not heeded and the unit is continuously played in this
manner, permanent damage will be done to the driver. This damage is NOT
covered by Warranty. Please remember, STENTOR is there to supplement your
main system, not overwhelm it!
POSITIONING STENTOR WITHIN YOUR ROOM
Ideally, STENTOR should be positioned mid-way between your main speakers but
pushed back as far against the wall as possible. This will help with sound
integration between the two different sources. It seems that we humans prefer to
listen to plane waves rather than spherical. Waves become planar as they travel
away from the source, just like waves expanding from a stone dropped in a pond.
The further the waves travel, the more planer they become. Perhaps it is because
we tend to hear plane waves at a concert or in a Cathedral or any large building, but
whatever the reason a more distant source, particularly of low frequencies, appears
