Pro Co Sound TradeTools MS3 User guide

CONTROLS:
MICROPHONE SPLITTER
Pro Co Sound
225 Parsons Street | Kalamazoo, MI 49007
800-253-7360
»www.procosound.com
INPUT:
Female 3-pin XLR-type connector accepts signal from low-
impedance (150 ohm nominal) microphone or similar source.
Input impedance (with 1.0 kohm loads on DIRECT and both
ISOLATED OUTPUTS): approx. 500 ohm.
DIRECT OUTPUT:
Male 3-pin XLR-type connector wired in parallel with INPUT
provides signal to feed mixer input.
ISO OUTPUTS:
Male 3-pin XLR-type connectors provide oating
transformer-isolated low-impedance outputs to feed mixer
inputs. Recommended load impedances: 1.0 kohm.
GND/LIFT:
GND position connects pin 1 of INPUT/DIRECT OUTPUT to
pin 1 of ISOLATED OUTPUT. LIFT position “oats”ISOLATED
OUTPUT. Used to reduce hum and buzz by eliminating
ground loops and providing proper grounding for various
conditions.
MS3
APPLICATION INFORMATION
XLR FEMALES
XLR MALE
PHANTOM POWER (IF REQUIRED)
MUST BE PROVIDED BY CONSOLE
CONNECTED TO DIRECT OUTPUT.
LOW-IMPEDANCE MICROPHONE
SIGNAL SOURCE
DIRECT BOX OUTPUT
MIC INPUT OF MIXING CONSOLE
SIGNAL PATH
MICROPHONE CABLE (Balanced)
MIC INPUT OF MIXING CONSOLE
MIC INPUT OF MIXING CONSOLE
I
NP
U
T
D
IRE
C
T
OU
TP
U
T
G
ND
LIFT
GND LIFT
ISO
OU
T 2
ISO
OU
T 1
XLR FEMALE

NOTES:
1. For safety reasons, all equipment with 3-wire AC line cords
should be connected to properly grounded receptacles.
If all mixers are grounded properly, GND/LIFT switches
should be set in the LIFT position for minimum hum and
buzz. If this setting does not minimize hum and buzz, it may
be indicative of poor grounding quality or improperly wired
AC receptacles. Such conditions may be hazardous and
should be investigated.
If a GND/LIFT switch seems non-functional, check the wiring of
all mic cables plugged into the unit. Cables with a jumper
between pin 1 and the connector shell can defeat the GND/LIFT
switches.
2. Microphones require a ground connection somewhere in the
signal path. For this reason it is suggested that a properly
grounded mixer always be connected to the DIRECT OUTPUT.
3. Direct boxes receiving inputs from AC-line-powered sources
such as keyboards or stage amplication should have their
GND/LIFT switches set to LIFT and the source equipment line
cords properly connected to grounded 3-wire receptacles
whenever possible. (See note 1).
4. Because of the use of a transformer, DC current cannot be
passed from an ISOLATED OUTPUT to the INPUT. This eectively
blocks phantom power such as may be required by condenser
microphones and some direct boxes. Phantom power must
be provided by the mixer connected to the DIRECT OUTPUT, or
by a suitable outboard power supply connected between the
microphone and the INPUT.
Pro Co Sound
225 Parsons Street | Kalamazoo, MI 49007
800-253-7360
»www.procosound.com
MS3-02 Rev. 12/11
APPLICATION INFORMATION
CIRCUIT DIAGRAM:
AV1B Audio/Video Interface Unit
AVP1 Wallplate Format Audio/Video Interface Unit
AVP1V Wallplate Format Audio/Video Interface Unit with Input Level Control
CB1 Direct Box
DB1 Professional Direct Box
DB2 Professional Stereo Direct Box
DB4A Rackmount Quad Direct Box
DBA1 Professional Active Direct Box
HJ4P Professional Stereo headphone Junction Box
HJ6 Headphone Junction Box
iFace Portable Audio Player Interface
iGate Universal Audio Gateway
iPlate Wallplate Format Portable Audio Player Interface
iRack Rackmount Portable Audio Player Interface
IT1 Isolation Transformer Unit
IT4A Rackmount Quad Isolation Transformer Unit
IT8A Rackmount 8-ch. Isolation Transformer Unit
LS82 Rackmount 8-ch. 1:2 Line Level Splitter
MC2 Microphone Combiner
MS2 1:2 Microphone Splitter
MS3 1:3 Microphone Splitter
MS42A Rackmount Quad 1:2 Microphone Splitter
MS43A Rackmount Quad 1:3 Microphone Splitter
MS82 Rackmount 8-ch. 1:2 Microphone Splitter
MS82P Rackmount 8-ch. 1:2 Phantom Power Microphone Splitter
MS83 Rackmount 8-ch. 1:3 Microphone Splitter
MS83P Rackmount 8-ch. 1:3 Phantom Power Microphone Splitter
. . . plus our full line of audio cabling, snakes!
Other TradeTools™ Products from Pro Co
PRO CO MODEL: MS3 DIMENSIONS................ 4.88” D x 4.38”W x 1.75” H
123.8mm D x 111.1mm W x 44.4mm H
WEIGHT.............................................. 1.125 lb/0.51 kg
SHIPPING WEIGHT............................2.00 lb/0.91 kg
WHT
YEL
BLK
MBT-2 TRANSFORMER
GRN
RED
BRN
(CAN)
BLU
PNK
GRY
BRN
ISO OUT 1
S (PIN 1)
H+ (PIN 2)
C- (PIN 3)
ISO OUT 2
S (PIN 1)
H+ (PIN 2)
C- (PIN 3)
GROUND
LIFT
GROUND
LIFT
INPUT
DIRECT OUT
S (PIN 1)
H+ (PIN 2)
C- (PIN 3)
S (PIN 1)
H+ (PIN 2)
C- (PIN 3)
S2
S1
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