Rane MA 6 1988 version User Manual
Page 4
Rear Panel
1. INPUTS: These are 1/4" stereo (RTS) jacks, which are automatic balanced/unbalanced.
Use a mono shielded patch cable for unbalanced operation. Use a two conductor shielded
cable for balanced operation. with a male 1/4" stereo plug wired as follows:
Tip: Signal Hot (Pin #2 on a three pin connector)
Ring: Signal ground (Pin #3 on a three pin connector)
Sleeve: Shield (Pin #1 on a three pin connector)
NOTE: The MA 6 utilizes switching input jacks to automatically make internal connections
between each pair of channels:
1&2, 3&4, and 5&6. Whenever a signal is plugged into an odd
numbered channel (say channel 1). the next even-numbered channel is AUTOMATICALLY
driven INVERTED as long as nothing is plugged into its own input (in this case channel 2). As
soon as a signal is plugged directly into the even-numbered channel, the internal connection is
defeated and both channels operate independently.
See elsewhere for details on using these inputs for bridging channel pairs for increased power
output into a single 8 ohm load.
2. OUTPUT TERMINALS: Connect the speaker(s) to each of the six channels by means of
these screw-type connectors. Be sure to place the speakerwire UNDER the integral washer in
the MA 6 terminal to avoid fraying the wire while tightening-and keep the wire insulation
close to the screw and trim any excess wire to avoid shorting the outputs together.
See elsewhere for details on connecting a speaker to a bridged pair of channels.
3. AC LINE CORD: Plug this into a GROUNDED AC outlet of 120 VAC (or 240 VAC if the MA
6 is internally wired for 240V operation).
PLEASE NOTE: If you use an adapter to plug the MA 6 into a non-grounded outlet (three-to
two prong adapter), BE SURE TO SCREW THE GROUND
ADAPTER TO THE OUTLET BY
MEANS OF THE COVER PLATE SCREW.
4. LINE FUSE: Use only a 15 amp FAST-BLOW (or NORMAL BLOW--NOTSLOW BLOW)
fuse, 1.25" long. such as Littlefuse #3 AG-15, Buss #AGC-15 or equivalent
5. FAN FILTER: This washable filter may easily be removed for periodic cleaning by pressing
in and twisting 1/8 turn either direction and then lifting it away--perform this feat with the fan
OFF, of course. Once the filter is removed, rinse it under hot tap water; use dish soap to cut
through particularly stubborn “tav sludge”.
IMPORTANT: KEEP THIS FILTER CLEAN TO ENSURE PROPER COOLING AND RELIABILlTY
OF THE MA 6. — NEVER REMOVE FILTER WITH UNIT PLUGGED IN.
The MA 6 draws a tremendous amount of air to ensure proper cooling and resultant long term
reliability. Check and clean the filter as often as necessary, especially if the thermal overload
indicator ever comes on.