Setup Instructions - Fostex PM841 Reference Manual

Monitoring Distance = 1 to 2 meters
After carefully unpacking the PM841 /
PM641 Professional Studio Monitor, it is
now time to set up the monitors for the best
acoustic performance in your studio.
The PM841 / PM641 was designed to be
used at a monitoring distance of 1 to 2
meters, typically referred to as the near-
field.
Monitoring Height = the acoustic center
aimed at seated ear height
It is recommended that the PM841 / PM641
be located in such a way that the acoustic
center is located at, or about, seated ear
height (see Figure 1). If this is not possible,
it may be necessary to tilt/aim the monitor
at the listeners ears.
Monitoring Angle = 60 Degrees
The monitoring angle between the left and
right monitors and the listening position
should equal 60 degrees. The easiest way
to determine this is to place the speakers in
such a way that the distance between the
left and right monitor is equal to the moni-
toring distance / listening position (see
Figure 2). It is also recommended that both
speakers be "toed-in" towards the listening
position.
Additional Information
The PM841 / PM641 was designed to be
mounted vertically. This provides for the
most accurate frequency
reduces acoustic boundary interference
and provides optimum cooling performance
for the heat sink that is located
of the studio monitor.

Setup Instructions

Figure 1
Figure 2
response,
on the back
Center of the tweeter/mid range
Center of the woofer
Mid-point of the woofer and tweeter/mid range
B
Left
30˚
B: loudspeaker base width
Reference listening position
D: monitoring distance
Right
= B
p-5