Rane AC 22B Datasheet

CH 1
MASTER
MONO SUB
4 6 4
2 8 2
0 10 0
LEVEL LEVEL
MASTER
General Description
The Rane AC 22B Active Crossover is a stereo 2-way with a
mono subwoofer option, or it can be used as a mono 3-way. They
employ state-variable 4th-order Linkwitz-Riley filter alignments
to minimize phase difficulties in the critical crossover region.
The AC 22B uses XLR connectors with active balanced inputs
and outputs.
Simply put, a Linkwitz-Riley alignment is two cascaded 2nd-
order Butterworth filters exhibiting identical phase characteris-
tics 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
Features
• Stereo 2-Way or Mono 3-Way
• Linkwitz-Riley Alignment with 24 dB per Octave Slopes
• Adjustable Delays
• Mono Subwoofer Switch and Output
DATA SHEET
LOW LOW / HIGH
300 400
250 500
6 4 6 180 700
120 1.0k
90 1.5k
8 2 8
80 2.0k
75 3.0k
10 MIN MAX
70 3.6k
MUTE DELAY FREQUENCY
LOW LOW / MID
HIGH STEREO CH 2
MASTER
INACTIVE: MONO SUB
4 6 4 6 4 6
2 8 2 8 2 8
0 10 0 10 0 10
LEVEL LEVEL LEVEL
MONO
INACTIVE INACTIVE
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.
To further guarantee the transparent operation, adjustable
Delay circuits appear on the Low (& Mid when used in 3-way
mode) Outputs of each channel to compensate for any physical
misalignment of the drivers. Time correction ensures the me-
chanical phase alignment of adjacent drivers will be acoustically
correct, thus maintaining the integrity of the electrical phase
alignment of the crossover's filters. CD horn equalization is also
possible with an internal modification.
See the RaneNote Linkwitz-RileyCrossovers: A Primer, avail-
able from our website.
• Infrasonic, Ultrasonic, and RFI Filters
• Low Output Muting (2-Way)
• Input & Output Level Controls
• Fully Active Balanced XLR Inputs & Outputs
• UL/CSA/CE and 00/20/230 VAC Remote Power Supplies
ACTIVE CROSSOVER
LOW LOW / HIGH HIGH
300 400
250 500
4 6 180 700 4 6
120 1.0k
90 1.5k
2 8 2 8
80 2.0k
75 3.0k
MIN MAX 0 10
70 3.6k
MUTE DELAY FREQUENCY LEVEL
MID MID / HIGH HIGH
AC 22B
AC 22B
ACTIVE
CROSSOVER
POWER
Data Sheet-