Rane AC-23S Active Crossover

Rane AC-23S

 Active Crossover can be configured as a stereo 2- or 3-way, or a mono 4- or 5-way. The AC 23S uses XLR connectors with active balanced Inputs and Outputs. Rane AC-23S employs 4th-order Linkwitz-Riley filter alignments to minimize phase difficulties in the critical crossover region. In 2- or 3-way stereo mode, the low outputs of Rane AC-23S may be mono'ed by moving an internal jumper. Constant directivity (CD) horn equalization is possible with an internal modification. See the manual for details.

Simply put, a Linkwitz-Riley alignment is two cascaded 2nd-order Butterworth filters exhibiting identical phase characteristics on their low-pass and high-pass outputs. This characteristic guarantees in-phase outputs at all frequencies. In-phase outputs are mandatory for proper acoustic summing of common signals from adjacent drivers in the crossover region. An added benefit of this topology is steep 24 dB per octave rolloff slopes. A slope of this magnitude guarantees drivers designed to produce a specific range of frequencies, and no more, will not be driven past their limits, thereby minimizing distortion and driver fatigue.

Stereo 2- or 3-Way, or Mono 4- or 5-Way

Linkwitz-Riley Alignment with 24 dB per Octave Slopes

Adjustable Driver Alignment Delays

Rane AC-23S has Fully Active Balanced XLR Inputs & Outputs

Low & Mid Output Muting (3-Way)

Mono Sub Output Option

Infrasonic, Ultrasonic and RFI Filters

Rane AC-23S has Constant-Directivity Horn EQ Option

Input & Output Level Controls

Internal Universal Power Supply (100-240 VAC)

Filter Type: State-variable 4th-order Linkwitz-Riley

Operating Modes: Stereo 2- or 3-way, mono 4- or 5-way

Crossover Frequencies:
Low to Mid: 70Hz to 1kHz
Mid to High: 190Hz to 7kHz
Low to High: 190Hz to 7kHz

Gain Range: Off to +6dB

Front Panel Switches: Mute (individual per band)

Inputs: 2 x XLR

Outputs: 6 x XLR

Maximum Input Level: +21dBu

Maximum Output Level: +20dBu

Frequency Response: 20Hz to 40kHz, +0/-3.0dB

Dynamic Range: Not specified by manufacturer

Noise: SNR: 92dB, referenced +4dBu, 20kHz noise bandwidth

Power Requirements: 100~240 VAC, 50/60Hz

Dimensions (WxDxH): 19 x 5.3 x 1.75" (483 x 133 x 45mm)

Weight: 5 lbs (2.3kg)

Specialties: CD horn equalization is possible with an internal modification

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