Graham Audio Limited
0044 (0)1626 361168
BBC Licensed Monitor Loudspeakers
Owner’s Manual
Thank you for purchasing this loudspeaker
system from Graham Audio, which was hand-
built using the finest materials according to
strict BBC specifications and used carefully,
will provide many years of listening
enjoyment.
Please spend a few minutes reading these
instructions before using your new
loudspeakers.
Positioning your loudspeakers
All BBC monitor loudspeakers are intended to
be mounted on stands that bring the tweeter
up to ear level. Graham Audio can supply
dedicated stands that are designed to work in
typical domestic environments; taller stands
for professional environments can be
produced to order.
Alternative stands can be used, provided they are rigid and non-resonant. Test metal stands with
hollow upright sections by rapping them with a knuckle, and consider filling them with dry sand or
similar to eliminate any ringing.
For safety reasons, please ensure that the top surface of the stand is of similar dimensions to the
loudspeaker. There are many options for the interface between the bottom of the loudspeaker and
the top of the stand, but many will damage the bottom of the loudspeaker – small pads of foam, felt
or cork can work well, as can small self-adhesive rubber feet. Between the bottom of the stand and
the floor, spikes are recommended for carpeted floors, and these must be carefully adjusted to
ensure the stand is absolutely stable. Periodically check the spikes as they can work loose. For
other floor types, spikes might not be appropriate – contact your dealer for advice.
As is normal, determining the optimum position for your loudspeakers in your listening room should
be the subject of some experimentation. As a starting point, try positioning them such that you and
the two loudspeakers form an equilateral triangle. If possible, try to keep them away from side
walls, as reflections from these might affect the stereo image. Remember also that the distance
between the loudspeakers and the rear wall will have an effect on the bass level and quality. In a
rectangular room, you can usually expect best results from pointing the loudspeakers across the
narrow dimension of the room, but every room is different, and there are no firm rules! The
loudspeakers should be angled in to face you, but again, this can be varied according to taste.
Nearly every listening room can be improved with acoustic treatment. A thick carpet (or large rug)
is recommended, as reflections from hard floors are always detrimental. Large expanses of bare
walls can be similarly problematic, and reflections from these can be treated with absorbent
materials or diffused with irregular surfaces such as bookcases. In professional environments,
acoustic treatment is the norm.
