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Manual-5

REAR PANEL: STEREO 3-WAY INSTALLATION

Observe the labels 

above 

the Inputs and Outputs for Stereo operation.

 CHANNEL 1 INPUT: 

These ¼" Inputs accept either balanced TRS (tip-ring-sleeve) or unbalanced TS (tip-sleeve) plugs.

Connect the output of the mixer, equalizer or other signal source to this Input. Note: Use this input only if you are running
two separate channels from the mixer or other source. Connect this Input to the left channel output of the mixer, equalizer or
other signal source. If you are running two speaker systems from a single mono signal, omit this Input and use only the
CHANNEL 2 INPUT. See #2 below.

 CHANNEL 2 INPUT: 

For true stereo operation, connect this Input to the right channel output of the mixer, equalizer or

other signal source. NOTE: Two separate speaker systems may be independently operated from a single mono source by
using only the CHANNEL 2 INPUT and omitting the Channel 1 Input. As long as nothing is plugged into the Channel 1
Input, CHANNEL 2 will drive BOTH Channels of the AC 23 internally.

 HIGH FREQUENCY  OUTPUTS: 

 These are ¼" TS (tip-sleeve) unbalanced Output jacks. Connect the CHANNEL 1

HIGH OUT to the left channel input of the high frequency amplifier, and the CHANNEL 2 HIGH OUT to the right channel
input of the high frequency amp.

 MID FREQUENCY OUTPUT: 

Connect the CHANNEL 1 MID OUT to the left channel of the mid frequency amplifier,

and the CHANNEL 2 MID OUT to the right channel of the mid amplifier.

 LOW FREQUENCY OUTPUTS:

 Connect the CHANNEL 1 and 2 LOW OUTS to the left and right channels of the low

frequency amplifier, respectively.

 2-WAY/3-WAY SWITCHES:

 Converts the Outputs from Stereo 3-Way to Stereo 2-Way. Be sure the switches are in the

3-WAY position.

 Power input connector: 

Use only a model RS 1 or other power supply approved by Rane. This unit is supplied with an 18

VAC center tapped remote power supply suitable for connection to this input jack. Consult the factory for a replacement or
subsitution.

 Chassis ground point:

 A #6-32 screw is used for chassis grounding purposes. Always connect the crossover chassis to the

amplifier chassis. See CHASSIS GROUNDING note on page Manual-7 for details.

Summary of Contents for AC 23

Page 1: ...e some dead channels in the unit when looking for output in places where there shouldn t be any The even more automatically confusing part is the way that the Output connectors decide whether the unit...

Page 2: ...tting the Output Level Controls on page Manual 15 LOW MUTE switch When pressed to the in position all signal is removed from the Low Frequency Output This eases tune up procedures as described on page...

Page 3: ...1 Input CHANNEL 2 will drive BOTH Channels of the AC 23 internally HIGH FREQUENCY OUTPUTS These are TS tip sleeve unbalanced Output jacks Connect the CHANNEL 1 HIGH OUT to the left channel input of th...

Page 4: ...to 2 ms of time delay to the Low Frequency Output only This allows a low frequency driver to be electronically phase aligned with a mid frequency driver whose diaphragm is situated behind the low fre...

Page 5: ...ANNEL 2 will drive BOTH Channels of the AC 23 internally HIGH FREQUENCY OUTPUTS These are TS tip sleeve unbalanced Output jacks Connect the CHANNEL 1 HIGH OUT to the left channel input of the high fre...

Page 6: ...the Subwoofer and Low Outputs Refer to page Manual 10 to determine the proper setting for your system LOW LEVEL control Sets the Level going to the Low frequency Output LOW MUTE switch Removes all sig...

Page 7: ...PLUG INTO THIS OUTPUT FOR 4 WAY MONO OPERATION IMPORTANT NOTE CHASSIS GROUNDING If after hooking up your system it exhibits excessive hum or buzzing there is an incompatibility in the grounding config...

Page 8: ...Use this output only for Mono 5 Way applications Omit this output when using the AC 23 as a Mono 4 Way Crossover As long as no plug is inserted into this jack the AC 23 internally bypasses the Hi Mid...

Page 9: ...hannel 2 input Note For this alternate Mono 4 Way installation connect a patch cord from the CHANNEL 1 HIGH OUT to the CHANNEL 2 INPUT as shown See warnings above SUBWOOFER OUTPUT These are TS tip sle...

Page 10: ...nd a moment here to re affirm why this delay is really necessary For a short course on time delay Linkwitz Riley and other mouth watering details we recommmend the Linkwitz Riley Crossovers RaneNote A...

Page 11: ...the crossover so that pink noise is heard from both the high and mid drivers Switch the display sensitivity to 3 dB on the Rane analyzer not necessary with full scale analyzers and observe the display...

Page 12: ...PL Meter Tone Generator Now that good quality realtime analyzers are becoming more affordable and easier to use there are few reasons why one of these should not be regularly used in any sound system...

Page 13: ...er is actually in front of the mid driver adding delay to the mid driver then only worsens the situation There are a couple of ways to deal with this a Try to move the high driver back as far as possi...

Page 14: ...river response will cause erroneous alignment attempts Using pink noise as a source each driver is individually tuned to an arbitrary 0 dB level on the analyzer display only at the crossover frequency...

Page 15: ...nded methods of setting the crossover output Levels Setting Levels Using a Realtime Analyzer NOTE If you are running two Channels tune up only one Channel at a time 1 Set all LEVEL controls on the cro...

Page 16: ...ng any settings on the SPL meter adjust the cross over MID LEVEL control until you obtain a 0 dB reading on the SPL meter Now the low and mid speakers are set at the same level 7 Now press the MID MUT...

Page 17: ...ind the Channel 1 LF LEVEL pot find the jumper labeled W22 3 To remove the Delay 3 circuit from the Low Frequency output remove both the W28 and W22 jumpers 4 To get the Low Frequency output to work a...

Page 18: ...vity Horn Equalization Modification Constant Directivity or CD horns need additional equalization to help cover the same area a long throw horn can cover Additional circuitry has been added to the AC...

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