REAR PANEL DESCRIPTION
1. INPUT JACK: This is a stereo 1/4" jack which will accommodate either balanced or
unbalanced input signals. For unbalanced signals use a mono 1/4" plug (single conductor with
shield). For balanced signals use microphone cable (two conductor with shield) with a stereo
1/4" plug on one end for the ME 15/30, wired as described below, and either a stereo 1/4" or
three-pin connector as dictated by the signal source on the other end. Rane adheres to the
international and U.S. standard for balanced pin configurations:
Pin #1 = Case ground (Neutral) = Sleeve on a 1/4" connector
Pin #2 = Hot (Positive) = Tip on 1/4" connector
Pin #3 = Signal Ground (Negative) = Ring on 1/4" connector
2. OUTPUT JACK: This is a stereo 1/4" “ floating” output which is compatible with either
balanced or unbalanced systems. For balanced systems, use a microphone cable wired as
explained in #1 above.
IMPORTANT: For unbalanced operation, do not use a mono plug (single conductor with
shield) but rather a microphone cable (TWO conductor with shield). Although a mono cord
will work, there is a much greater possibility of hum or buzz creeping into the system with this
type of cord. To minimize hum or buzz problems, wire a microphone cable as shown below
with the following configuration:
From ME 15/30
Tip
Ring
Sleeve (Shield)
TO
Unbalanced Equipment
Tip
Sleeve
Sleeve
The theory here is to GROUND THE SHIELD ONLY AT THE RECEIVING END OF THE CABLE.
The sleeve connection at the output of the ME 15/30 is not connected internally (thus the
term “floating”). For further information on grounding systems ask your dealer for a free copy
of Rane Note 110 entitled “Sound System Interconnection”.
