26
Phonitor
QUICK GUIDE To Monitoring Functions
Operation
You should now compare what you hear with headphones and loud-
speakers. First, whether or not you have the correct width in your
stereo image. If this appears too narrow or too broad with the head-
phone, you have always two ways for further adjustments:
A. Increase Crossfeed. With this approach more of each channel is
mixed to the opposing side, but the Speaker Angle remains unaffect-
ed. Technically speaking, this process changes the interaural level
difference. However, the interaural time difference on the contrary
changes only minimally.
B. Alternatively you can keep the Crossfeed adjustment identical
(thus keeping the interaural level difference), but for example in-
crease the Speaker Angle. This way the interaural time difference is
increased, which in turn has the effect of a broader image. The inter-
aural level difference is only slightly altered. Do not be misled by the
scaled Speaker Angle degree numbers so that you think you need to
follow only those exact values given for your loudspeakers. These
values are to be considered as approximations for the determination
of interaural time differences. In an individual installation, a loud-
speaker pair set up at a 30° angle may in fact be perfectly represent-
ed with a 40° Speaker Angle switch adjustment at the Phonitor.
Tip
If you are uncertain about the angle your loudspeakers are set up, you
can calculate this as follows: You‘ll need a pocket calculator with pi
functions (in this case ‚arctan‘ = arc tangens) and a measuring tape.
Measure the distance between both loudspeakers, that is, between
the cone midpoints, and divide the distance by 2. We call this result A.
Now measure the distance between the loudspeaker centers and the
location of your ears at the listening position. This result we call B. The
angle W, in which the loudspeakers are set up is calculated according
to the formula: W = arctan A:B.
