KEF LSX User Manual page 56

8. What is the optimal listening position?
For the best sound experience separate the Master and Slave Speaker by 1 to 3 meters.
Optimal distance between the speakers and the listener will depend on the Master
and Slave Speaker separation. Try to aim for approximately the same distance to the
listener (i.e. form an equilateral triangle).
In other words, the speaker distance between the Master and Slave Speakers (A)
should be the same as the distance between the Slave Speaker and the Listener (B) and
the distance between the Master Speaker and the Listener (C).
Also, try angling the speakers inwards towards the listener.
A
B C
A = B = C
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