MSX 4 Options
The two front panel splits are available with isolating
transformer balanced outputs if required. Ideally these
should be installed at the time of ordering the unit(s),
but they are available as a retrofittable kit. Contact ARX
directly or the dealer at your point of sale for further
information on obtaining a tranformer balancing kit. The
kit has complete details on the installation, testing and
ground lift wiring of the transformers.
Note: A reasonable amount of technical knowledge is
required for this retrofitting, so we recommend that it
be done by a qualified technician
The internal gain of the MSX 4 is set at +10dB. This is
the optimum figure for obtaining the best signal to noise
ratio. However, for applications that require the inter-
nal gain to be unity, contact ARX directly for the techni-
cal application notes.
Note: Once again, a reasonable amount of technical
knowledge is required for this change, so we recommend
that it be done by a qualified technician
Power Connections
The MSX 4 is designed to be used with the MPS 1 Dual
Power Supply only. This unit has two completely inde-
pendent power supplies inside, and both 6 pin connec-
tors should be connected to the MSX 4 with the sup-
plied leads.
If more than one MSX 4 is being used, then the
MPS 1 should be connected as the following dia-
gram shows.
IMPORTANT
Check that the AC Power at the wall is in the same
voltage range as that printed on the fuse holder doors,
before connecting the MPS 1 to the AC supply.
Application Notes by Colin Park and Ben Duncan