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Rev3. © Monitor Audio 2006
Running-In
As with all speakers, the Bronze Reference requires a certain amount of
running-in time before the best is achieved from your loudspeakers. A running-
in period of approximately 50 hours should be enough for the Bronze Reference
Series.
Running-in loudspeakers is similar to running-in a car engine. Play them at
approximately half of your normal listening level to run them in so that
permanentdamage isnotcaused.
If you wish to speed up the running-in process, this can be done by placing
them face to face (almost touching) and connecting one of the pair out of phase
(black to red and red to black). This way the sound wavescancel each other out
and very little sound level is actually heard. This is a convenient solution, as
they can beleftto run-in whileyou areaway fromhome.
Port Bungs
Bookshelf Loudspeakers
The BR1 isa rear ported cabinetdesign. Becauseof this design,we recommend
that when fixing the loudspeakers to a wall that the port bungs are used. This
may also apply when they are positioned very close to a rear/side wall. The
BR2’s, by contrast, are front ported in design. This means that they can be
positioned more or less anywhere and it won’t affect the sound greatly. The
only time that the port bungs may be needed is if the loudspeakers are close to
a side-wall. The bass may seem to ‘boom’ off of the surrounding walls in the
listeningroom and seem over-powering.
Floor-Standing Loudspeakers
The BR5 and BR6 are both designed using two ATR port tubes. One is located
on the front of the cabinet, the other on the rear. These ports should not need
to be blocked if you are using your loudspeaker in a room greater than
approximately 9m
2
. However, if you cannot implement the ideal speaker
positioning, then experiment using the port bungs. Firstly start by fitting them
in the rear port, then the front, and then both to see which configuration is best
suitedtoyourpersonal tastes androom constraints.
Foam port bungs are supplied for all speakers with and ATR port tube. The port
bungs are another way of fine-tuning the loudspeaker to fit in sonically in your
home environment.
WARNING: Care must be taken not to insert the port bungs too far into the port
as this may resultin the foam bungbeinglost insidethe cabinet.
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