Monitor Audio BX Series - Manual (Page 9)

monitoraudio.co.uk 7
NOTE: When using 2 pairs of BX-FX in a 7.1 system, you need to use the RIGHT
hand speaker for the rear surround left and the LEFT hand speaker for the rear
surround right. This is because of the tweeter phasing.
2 Channel Positioning
For use in a 2 channel system, the listening position and the loudspeakers should form an
equilateral triangle. The speakers should be positioned approximately 6 - 10 feet (1.8 - 3m)
apart. They ideally need to be between 8 - 18 inches (20 - 45cm) away from the rear and
3 feet (1m) from the side walls.
Experimentation is strongly advised when initially setting up your speakers, as environments
and personal preference differ with each installation. If there is not enough bass, for
example, then try moving your speakers closer to a wall. The opposite, if there is too much
bass. Also see the information on page 10 refering to Port Bungs. If you are loosing stereo
imaging, try ‘toeing’ them in slightly. The sound should appear to originate from the centre
point between the speakers, not the actual speakers themselves.
setting uP the BX-FX
The Bronze BX-FX’s are paired, but specifically, right hand and left hand units. Of which
both can be configured to bi-pole (normal operation) or di-pole modes. The factory setting
is bi-pole.
In bi-pole mode, all speaker units (mid/bass unit and tweeters) are in phase. This feature is
designed for when the BX-FX is set up as a rear/surround speaker in a typical 5.1 channel
system, or alternatively in a 7.1 channel system without a second pair of BX-FX’s for rear/
surround duties.
In di-pole mode, the rear firing tweeters are out of phase with the other tweeter and mid/
bass unit. It is best to implement this configuration when using the two pairs BX-FX as part
of a 7.1 channel system, with the BX-FX’s taking up positions on the side and rear walls.
Please note that the BX-FX’s are left and right handed. This is not an issue when used in bi-
pole mode. It is essential that they are positioned correctly if used in a 7.1 channel system.
Please refer to the positioning section on page 6.
NOTE: Before changing your BX-FX’s from bi-pole mode to di-pole mode,
please ensure that the speaker wires are disconnected from your loudspeakers.
This helps to protect your amplifier.
Bronze BX Manual.indd 7 10/03/2010 10:55:32