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Manual-9

REAR PANEL: ALTERNATE MONO 4-WAY INSTALLATION

Note: The switching in the AC 23B will result in a Mono 4-Way configuration with the crossover ranges
SUB, LOW, MID & HIGH from left to right across the bottom front panel. By connecting a patch cable from
the CHANNEL 1 HIGH OUT to the CHANNEL 2 INPUT, the LOW / MID crossover range changes from
70 Hz-1 kHz to a higher range of 190 Hz-7 kHz. Switch CHANNEL 1 to 3-Way, and CHANNEL 2 to 2-Way.

Note: DO NOT follow the Mono 4-Way Switch Instructions on page Manual-7, it must be set to 5-Way.

 MONO INPUT: 

Connect the output from your mixer or other signal source only to the CHANNEL 1 INPUT; do not use

the Channel 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.

 SUBWOOFER OUTPUT: 

Connect the SUB OUT to the input of the subwoofer amplifier (or bass bin amp).

 LOW OUTPUT:

 Connect the MID OUT to the input of the low frequency amplifier.

 MID OUTPUT:

 Connect the HIGH-MID OUT to the input of the mid frequency amplifier. 

Be sure the CHANNEL 1 HIGH

LEVEL and the CHANNEL 2 MASTER LEVEL controls are set at “7” for unity gain between Channels.

 HlGH OUTPUT:

 Connect the HIGH OUT to the input of the high frequency amplifier.

 STEREO-MONO switch:

 Be sure this switch is in the STEREO 

out

 position. Yes, STEREO. A Mono circuit is created

when Channel 1 is patched into Channel 2, and the correct signal flow depends on this switch.

 2-WAY / 3-WAY switches: 

Converts each channels outputs from 3-Way to 2-Way. 

For this configuration, set CHANNEL

1 to 3-Way, and CHANNEL 2 to 2-Way.

 POWER input connector. 

Use only a model RS 1 or other power supply approved by Rane.

 This unit is supplied with a

remote power supply suitable for connection to this input jack.

 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’ on page Manual-3 for details.

MONO 5W (CHANGE INTERNAL SWITCH FOR MONO 4W)

HI MID OUT-5W

LOW OUT

HIGH OUT

OMIT-4W

OMIT MONO

N108

MADE IN U.S.A.

RANE CORP.

LOW-3W / OMIT-2W

MID-3W / LOW-2W

HIGH OUT

3W

2W

CHANNEL 2

STEREO

CHANNEL 1

STEREO

MONO

MONO 4W / 5W IN

OMIT MONO

SUB OUT

MID OUT

LOW-3W / OMIT-2W

MID-3W / LOW-2W

3W

2W

STEREO

STEREO 3W / 2W

HIGH OUT

PIN 3=NEGATIVE
PIN 1=CHASSIS GND

PIN 2=POSITIVE

AC 23B

CLASS 2 EQUIPMENT

CHANNEL 2 IN

CHANNEL 1 IN

MONO: SET SWITCHES AS SHOWN

260mA

POWER

7

Mono 4- and 5-Way labels in this row.

5

8 9

6

High Amp

Mid Amp

Input

Patch Cable

4

Low Amp

3

Sub Amp

2

1

Summary of Contents for AC 23B

Page 1: ...it remains Pity See page Manual 6 for Mono 4 Way configuration In agreement with IEC and AES ANSI standards AC 22B wiring convention is pin 2 Positive pin 3 Negative return pin 1 chassis ground See t...

Page 2: ...ng Crossover Frequencies on page Manual 10 HIGH LEVEL control Sets the Level of signal going to the High frequency Output only Channel 2 MASTER LEVEL control Sets the overall Level of Channel 2 withou...

Page 3: ...still active and may be used as additional subwoofer outputs STEREO MONO switch Set this switch to the STEREO out position POWER input connector Use only a model RS 1 or other power supply approved by...

Page 4: ...MUTE switch Removes all signal from the Mid Frequency Output when pressed to the in position MID DELAY control Adds from 0 to 2 ms of time Delay to this Channel s Mid Output MID HIGH crossover frequen...

Page 5: ...equency amp and the CHANNEL 2 HIGH OUT to the right channel input of the high frequency amp MID OUTPUTS Connect the CHANNEL 1 MID OUT to the left channel of the mid frequency amp and the CHANNEL 2 MID...

Page 6: ...the Mid and High Mid Outputs NOTE Both the CHANNEL 1 HIGH LEVEL control and CHANNEL 2 MASTER LEVEL control are automatically bypassed when the AC 23B is switched to MONO on the back panel Adjusting th...

Page 7: ...turned off Remove the top cover of the AC 23B 2 Locate the 4 WAY 5 WAY switch see diagram 3 Move the switch from the 5 WAY position to 4 WAY 4 Replace the cover The AC 23B is now set for Mono 4 Way M...

Page 8: ...o the input of the subwoofer or bass bin amplifier LOW OUTPUT Connect the LOW OUT to the input of the low frequency mid bass amp MID OUTPUT Connect the MID OUT to the input of the mid frequency amplif...

Page 9: ...een Channels HlGH OUTPUT Connect the HIGH OUT to the input of the high frequency amplifier STEREO MONO switch Be sure this switch is in the STEREO out position Yes STEREO A Mono circuit is created whe...

Page 10: ...first into the realm of time delay and how to adjust it it might help to spend a moment here to re affirm why on earth this delay is really necessary For a short course on time delay Linkwitz Riley a...

Page 11: ...id driver at a comfortable volume 3 With a healthy but not uncomfortable volume of noise from the mid driver set the analyzer DISPLAY LEVEL control so the LED s corresponding to the high crossover fre...

Page 12: ...ophone until it is vertically midway between the mid and low drivers Repeat steps 2 through 5 using the crossover LEVEL control MUTE switch and next DELAY control You may start each series of steps 2...

Page 13: ...ill do not obtain a 3 dB reading you will have to physically move the high driver farther forward until the SPL meter reads 3 dB The amount of displacement corrections available from the delay depends...

Page 14: ...knob setting will then be the closest for your system For example if you have a two way system crossed over at 800 Hz with the compression driver voice coil located about 9 behind the woofer voice coi...

Page 15: ...d 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 crosso...

Page 16: ...se 1 Run pink noise into the crossover Inputs through the mixer or directly as is convenient 2 Make sure all crossover output LEVEL controls are turned all the way down and all amplifier level control...

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