Figure 6c. For signals leaving the bay and connecting to
balanced equipment that features balanced XLR inputs,
use a cable like Hosa's PXM-100 series which "unbal-
ances" the signal for use with the PHB-265 bay when using
the either half-normalled or full-normalled configurations.
Figure 6 c.
Outgoing signal
Hosa PXM-100 SERIES
Balanced signal connections are less prone to
interference than unbalanced, especially in long
cable runs. But in most cases, unbalancing runs of
10-15 feet to outboard gear in the manner detailed
above will make no audible difference in the audio. If
your studio is in an electronically "noisy" location, and
you experience increased noise in the audio signal
when unbalancing the signal runs to otherwise
balanced equipment as outlined above, then switch
the patchbay channels that are affected to the de-
normalled (middle) switch position, and use balanced
cables as in Fig. 7.
Although neither full nor half-normalling is possible in
the de-normalled (middle) switch position, it is still
possible to patch signals from top-rear to bottom-rear
jack positions by using a short patch cable between
top and bottom in the front as shown in the photo
below. (For balanced gear, use a balanced cable like
the the one shown in Fig. 7b.)
Figure 7. BALANCED CABLES
a. Incoming signal
b. Incoming/Outgoing signal
Figure 7 a, b, c. For patchbay modules set to the de-
normalled position (middle switch position), balanced
connections can be maintained to balanced gear by using
the appropriate balanced cable such as these (above)
offered by Hosa.
Hosa CSS-100 Series Cables
c. Outgoing signal
Hosa STX-100M Series Cables
Hosa STX-100F Series Cables
7
When using the center (de-normalled) switch position, it is still
possible to send signals from top-rear to bottom rear by connecting
a short patch cable to the front jacks as shown.
