Rane AC 23B Manual

Rane Ikke kategoriseret AC 23B

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Side 1/18

Manual-1

AC 23B

ACTIVE CROSSOVER

OPERATORS MANUAL

AC 23B CONNECTION

In agreement with IEC and AES/ANSI standards, AC 23B

wiring convention is pin 2 Positive, pin 3 Negative (return),

pin 1 Signal ground (for unbalanced use), with the connector

case or shell tied to chassis ground.

Balanced Operation

Use only when driving from a true balanced source and

driving to a true balanced destination—either transformer

coupled or active drive. Connect the input to pins 2 and 3 with

pin 2 positive. Do not connect pin 1. Terminate the shield to

the case or shell. Connect the output to pins 2 and 3 with pin

2 positive. Do not connect pin 1. Connect the shield to the

case or shell.

Unbalanced Operation

Connect the input between pins 2 and 1 with pin 2

positive and pin 1 Signal ground. Short pin 3 to pin 1.

Terminate the shield to the case or shell. Connect the output

between pins 2 and 1 with pin 2 Positive. Leave pin 3 open—

do not short it to pin 1. Connect the shield to the case or shell.

Combination Operation

For combined balanced and unbalanced operation, use

whichever half of the above instructions apply for each end.

See the “Sound System Interconnection” RaneNote

included with this manual for more information on cabling

and grounding requirements.

QUICK START

Labels above the controls refer to the unit being operated in the 2- or 3-Way Stereo mode. Labels below the

controls refer to the unit being operated in the 4- or 5-Way Mono mode.

The AC 23B is a fully balanced version of the popular AC 23 and is equipped with 3-pin (XLR-type) connectors instead

of the standard ¼" TRS jacks. A STEREO/MONO switch has been added to the AC 23B and should be set appropriately.

Switching jacks are not provided. All other specifications and operation are identical.

To operate the unit in Stereo 3-Way mode, be sure the rear panel switches are set for STEREO 3-WAY. Following the

labels above the controls and jacks in logical order, you will find CHANNEL 1 INPUT, LOW OUT, MID OUT, and HIGH

OUT, with the same for CHANNEL 2. The fact that the AC 23B is a multiple function unit means the outputs are switched

around in Mono mode. To use the unit as a Mono 5-Way, first check that the CHANNEL 1 and 2 switches are set to 3-

WAY, and the other switch is set to MONO. Connect the INPUT source to CHANNEL 1 only. Following the labels below

the jacks, look at SUB OUT, then look over at LOW OUT, now go back to MID OUT, then over to HI MID OUT and then

proceed to the HIGH OUT. An internal jumper determines 4 or 5-Way mode. Our apologies to 4-Way users: We must ship

the units in the 5-Way mode since normal Stereo 3-Way operation demands it: a fact not the least bit obvious, but neverthe-

less, a fact it remains. Pity. See page Manual-6 for Mono 4-Way configuration.

CAUTION: Never connect anything except an approved Rane Power supply to the thing that looks like a red tele-

phone jack on the rear of the AC 23B. This is an 18 VAC center tapped power input. Consult the Rane factory for a

replacement or substitution.

WEAR PARTS: This product contains no wear parts.

Manual-2

FRONT PANEL: STEREO 2-WAY CONFIGURATION

Observe the labels screened above the controls for stereo operation.

NOTE: In the 2-Way mode, the AC 23B crossover range is from 190 Hz to 7 kHz. The model AC 22 crossover

in stereo 2-Way mode is recommended when the crossover point needs to be outside of this range.

* Not used in 2-Channel 2-Way Mode

햲 POWER switch: Two guesses.

햳 POWER indicator: When this yellow LED is lit the unit is ready to operate.

햴 CHANNEL 1 MASTER LEVEL control: Sets the overall Level of Channel 1 without altering the relative settings of the

Low and High frequency Outputs. Unity gain for all level controls is at “7”.

햵 LOW LEVEL control: Sets the Level of signal going to the Low Frequency output in this channel. Refer to ‘Setting the

Output Level Controls’ on page Manual-15.

햶 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 pages Manual-11-16.

햷 LOW DELAY control: Adds from 0 to 2 ms of time Delay to the Low Frequency Output only. This allows a low fre-

quency driver to be electronically phase-aligned with a mid frequency driver whose diaphragm is situated behind the low

frequency diaphragm. Refer to ‘Time Delay Adjustment Procedure’ on page Manual-10.

햸 LOW/HIGH crossover frequency selector: This 41-detent selector sets the crossover frequency between the Low and

High frequency Outputs. Refer to ‘Selecting Crossover Frequencies’ on page Manual-10.

햹 HIGH LEVEL control: Sets the Level of signal going to the High frequency Output only.

햺 CHANNEL 2 MASTER LEVEL control: Sets the overall Level of Channel 2 without altering the relative settings of the

Low and High Outputs.

Produkt Specifikationer

Mærke:	Rane
Kategori:	Ikke kategoriseret
Model:	AC 23B

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