Rane Music Mixer AC 23S 数据表

ACTIVE CROSSOVER

Data Sheet-4

All features & specifications subject to change without notice. 

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1. S.H. Linkwitz, “Active Crossover Networks for Noncoincident Drivers,” J. Audio Eng. Soc., vol. 24, pp. 2-8 (Jan/Feb 1976).

2. D. Bohn, “A Fourth-Order State-Variable Filter for Linkwitz-Riley Active Crossover Designs,” presented at the 74th  

    Convention of the Audio Engineering Society, New York, Oct. 9-12, 1983, preprint no. 2011.

3. D. Bohn, “Linkwitz-Riley Crossovers: A Primer,” RaneNote, (1983, 1989, 2005).

4. D. Bohn, “Why Not Wye?” RaneNote, (1984).

•   SC 1.7 Security Cover

The active crossover shall contain 4th-order Linkwitz-Riley 

filters. Provisions shall exist to correct for driver misalignment by 

adding time delay to the low and mid frequency outputs.

The crossover frequency shall be controlled by a continuously 

variable control with 41 detents to allow mechanical reference of 

crossover setting.

Signal inputs and outputs shall be of active balanced design 

terminated with XLR connectors. RFI, infrasonic, and ultrasonic 

filters shall be built-in.

The active crossover shall afford an input level range of Off 

to +6 dB. The output level controls shall afford a level range of 

from Off to +12 dB with muting capability on the low and mid 

frequency outputs. The crossover shall supply two independent 

channels. 

The unit shall be capable of operation by means of its own 

built-in universal power supply operating at 100-240 VAC and 

meet CE requirements. The unit shall be UL and cUL listed. The 

unit shall be entirely constructed from cold-rolled steel.

Very few systems indeed will utilize a two channel crossover 

for the purpose of true stereo imaging. Discrete stereo channels 

which are run from the mixing board are usually used for 

panning effects and/or for separate equalization of left and 

right speaker stacks. Different sides of the room often require 

significantly different equalization due to varying room 

acoustics, dimensions, positioning of speaker stacks near walls, 

curtains and the like.

Even though you may not plan to use stereo equalization 

or panning effects, it is recommended that your system utilize 

discrete crossover channels for each stack of speakers to ensure 

flexibility and control for consistent, optimum sound quality. 

For example, if you plan to run a multi-stack system mono 

three-way, use the AC 23S rather than the AC 22S for separate 

control over each set of speakers—especially since phase 

alignment may differ with each stack requiring separate time 

delay adjustments. Even with only a single system equalizer, the 

AC 23S can deliver the extra independent control which can 

make a difference in sound throughout the listening area. If all 

drivers are built into a single cabinet, or you are running bi-

amped monitors, then the AC 22B is the one for you.