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This is the EWI MST-412 Rack-Mountable Four Channel by Three Way
Isolated XLR Transformer Splitter.
This is an ideal splitter for many applications,
including:
1) Splitting
XLR signals for taking a recording directly off a house mix.
2) Sending
mixed signals to multiple amp racks.
3) Splitting
XLR signals between house and monitor mixers.
4) Multiple XLR feeds for
broadcast.
The MST-412 has some nice features:
1) Reasonably durable construction
and all is housed in a convenient 1U rack mount unit.
2) Balanced XLR inputs and outputs.
3) Ground lift switches on both of
the Isolated Split Outputs.
4) Good quality transformers for
the splits.
5) The Direct Out will pass Phantom
Power. The two isolated split output do not pass phantom
power.
On the front side EACH of the 4 input channels are equipped with a direct output
and one isolated output with the ground lift switch next to the
isolated output.
On the back side is
one more isolated output panel jack for EACH of the 4 channels plus ground
lift switches for each back isolated split.
Physical
properties are:
The width is standard 19” rackmount.
The height is 1 U (1 ¾”).
The depth is 4” behind the rack ears.
There are 4 nice little rubber feet on the bottom to help
keep if from sliding around on a slick surface, or marring up
something you set it on.
Weight is 2.95 lbs.
This is a passive device, so no active power is required. The chassis is heavy gauge steel and the front mounting plate
is 0.075” extruded aluminum (no plastic here).
As well as being durable, the all-metal construction further
helps to reduce induced EMI into the unit. The panel jacks are
constructed with plastic bodies, and the FXLR input panel jacks are
constructed with spiral
spring contact points with no locking device other than the solid
fit of the spiral spring contacts.
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