User Manual

OWNERS MANUAL

MS20

Splitter

Combiner

Isolator

Rolls Corporation

Salt Lake City, UT

4/06

MS20b

Splitter Combiner Isolator

• Splits balanced XLR input, or 1/8" input to two balanced XLR

outputs

• Combines two balanced XLR signals to one XLR output.

NOTE: Will only pass phantom power to one microphone.

• One signal is transformer isolated from the other.

• Ground Lift switch for noise elimination

• The MS20c 1/8" (3.5mm) Input is a balanced TRS input.

This Input, however, may

be connected to an unbalanced signal source (Tip-Sleeve) such as a mixer output or

line-level instrument output, and the MS20c balanced outputs connected to a snake

or mixer's balanced input. NOTE: The

Ring of the 1/8" jack MUST be connected to

the Sleeve, and the

bottom XLR Output jack will have it's pin 3 grounded.

• The 1/8" jack may also be used as an unbalanced

output

. Connect a balanced signal

to the top XLR Input, the 1/8" jack may be connected via a Tip-Sleeve jack to an

unbalanced input.

• By referring to the diagram on the top of the MS20c, you can identify the signal

and grounding paths for all the jacks.

MS20c 1/8" (3.5mm) jack

PAGE 1
MS20c 1/8" (3.5mm) jack MS20c • The MS20c 1/8" (3.5mm) Input is a balanced TRS input. This Input, however, may be connected to an unbalanced signal source (Tip-Sleeve) such as a mixer output or line-level instrument output, and the MS20c balanced outputs connected to a snake or mixer's balanced input. NOTE: The Ring of the 1/8" jack MUST be connected to the Sleeve, and the bottom XLR Output jack will have it's pin 3 grounded. • The 1/8" jack may also be used as an unbalanced output output.
PAGE 2
Thank you for your purchase of the MS20c Splitter, Combiner, and balanced signal Isolator. OPERATION Shown below are some examples of how to connect your MS20c. This versatile unit will split a single balanced XLR signal into two isolated signals, combine two balanced XLR signals, along with a 1/8" (3.5mm) TRS signal together into a single output, or simply isolate a balanced line for buzz or hum elimination. Here is an example of the MS20c connected as a mic splitter. INSPECTION 1.