Rane AC23B AC 23B Active Crossover STEREO with Manual & Power Supply XLR IN/OUT

Description

The listing is for the item described below
Rane AC23B Active Crossover
Rane power supply
reprint of owner's manual
rack ears (attached)
made in USA
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The
AC 23B
active crossover is configurable as stereo 2 or 3-way, or mono 4 or 5-way. The unit employs state-variable 4th order Linkwitz-Riley filter alignments to minimize phase difficulties in the critical crossover region. Inputs and outputs are on XLR balnced connectors.
A Linkwitz-Riley alignment on the
AC 23B
is two cascaded 2nd-order Butterworth filters, exhibiting identical phase characteristics on their low pass and high pass outputs. This guarantees in-phase outputs at all frequencies, mandatory for proper acoustic summing of common signals from adjacent drivers in the crossover region. Steep 24dB per octave rolloff slopes will guarantee that drivers designed to produce a specific range of frequencies, will not be driven past their limits, thereby minimizing distortion and driver fatigue.
To further enhance the transparent operation of the
AC 23B
, adjustable time delay circuits are provided on the low and mid outputs of each channel to compensate for any physical misalignment of the drivers. Time correction ensures the mechanical phase alignment of adjacent drivers will be acoustically correct. The low delay circuit may be internally switched to the high output when necessary. CD horn equalization is also possible with an internal modification.
Mode switch for stereo 2 or 3-way, or mono 4 or 5-way operation
24dB per octave filters
Low frequency mute switchs remove all signal from the low and mid outputs in the appropriate channel, easing tune-up procedures
Rane AC23B Specs
Filter Type
Linkwitz-Riley
Operating Modes
Stereo 2 or 3-way, switchable to mono 4 or 5-way
Crossover Frequencies
2-way: 190Hz to 7kHz, via 41-detent continuously variable pot
3-way: Low to mid - 70Hz to 1kHz, via 41-detent continuously variable pot
3-way: Mid to high - 190Hz to 7kHz, via 41-detent continuously variable pot
Gain Range
Off to +6dB
Front Panel Switches
Low and mid frequency mute
Inputs
2 x XLR
Output
6 x XLR
Maximum Input Level
+21dBu
Maximum Output Level
+20dBu
Frequency Response
20Hz to 40kHz