Rane AC 22B (1998 version) - Manual (Page 3)

Manual-3
REAR PANEL: STEREO 2-WAY CONFIGURATION
Observe the labels screened above the Inputs and Outputs for stereo operation.
ቢ CHANNEL 1 INPUT connects to the left channel output of the mixer, equalizer or other source.
ባ CHANNEL 2 INPUT connects to the right channel output of the mixer, equalizer or other source.
ቤ HIGH FREQUENCY OUTPUTS: Connect Channel 1 HF OUT to the left channel input of the high frequency amp, and
the Channel 2 HF OUT to the right channel input of the high frequency amp.
ብ LOW FREQUENCY OUTPUTS: Connect the Channel 1 LF OUT to the left channel input of the low frequency amp and
the Channel 2 LF OUT to the right channel input of the low frequency amp. For Mono Subwoofer applications use Channel
1 LF OUT. Channel 2 LF OUT is disconnected in MONO SUB mode (see #8 below).
ቦ SUBWOOFER switch disconnects the Output from Channel 2 LF OUT and sums it with Channel 1 LF OUT. The result is
taken from Channel 1 LF OUT.
ቧ SYSTEM MODE switch: Set this switch for STEREO 2-WAY operation.
ቨ POWER input connector: Use only an RS 1, or other remote AC power supply approved by Rane. This unit is supplied
with a remote power supply for connection to this input jack. Consult the factory for replacement or substitution. This unit’s
power input is designed for an AC supply, delivering 18-24 volts, from a center-tapped transformer capable of supplying at
least the current demanded by this product. Using any other type of supply may damage the unit and void the warranty. The
Rane RAP 10 power supply can power up to ten Rane units that use outboard supplies.
ቩ Chassis ground point: A #6-32 screw is supplied for chassis grounding purposes. Units with external power supplies do
not ground the chassis through the line cord. In case of a grounding problem, try connecting crossover chassis ground to
amplifier chassis ground or directly to the grounding screw on a grounded AC outlet cover by means of a wire secured on
both ends with star washers to guarantee proper contact.See the Chassis Grounding Note below.
IMPORTANT NOTE
CHASSIS GROUNDING
If after hooking up your system it exhibits excessive hum or buzzing, there is an incompatibility in the grounding
configuration between units somewhere. Your mission, should you accept it, is to discover how your particular system
wants to be grounded. Here are some things to try:
1. If your equipment is in a rack, verify that all chassis are tied to a good earth ground, either through the line cord ground-
ing pin or the rack screws to another grounded chassis.
2. Units with outboard power supplies do not ground the chassis through the line cord. Make sure that these units are
grounded either to another chassis which is earth grounded such as an amplifer, or directly to the grounding screw on an
AC outlet cover by means of a wire connected to the grounding screw on the chassis.
3. Try moving the device away from high magnetic field sources, such as large transformers used in power amplifiers.
4. Be sure of properly balanced inputs and outputs. Connect balanced devices with balanced connectors and cables. Runs
longer than 10 feet require balanced interconnect.
Please refer to RaneNote “Sound System Interconection” for more information on system grounding and balanced/
unbalanced connections.