Rane DC24 Dual Compressor/Limiter with Gating

The Rane Model DC 24 Dynamic Controller is a two channel Compressor, Limiter, Expander Gate system with very unusual attributes. The DC 24 offers unprecedented control of its operating parameters as well as a built-in 24 dB/octave LinkwitzRiley Crossover which gives it very impressive capabilities.

Total freedom from control interaction highlight the DC 24 as well as the availability of separate Compressor and Limiter controls. The Compressor offers control over both Ratio and Threshold, while the Limiter allows setting a separate Threshold. In doing this, the DC 24 allows the operator to create a smooth transition between subtle compression over a wide dynamic range and peak-stop limiting at the sound system’s highest allowable level. If that’s not enough, the DC 24 also offers independent Expander/Gate Ratio and Threshold controls. This third level of signal manipulation makes the DC 24 a most useful and revolutionary device.

Attack and release times are automatic and program dependent. This simplifies use of the DC 24, as these subtle controls can confuse most users. History has proven that experienced compressor users rarely miss these controls after using a DC 24.

The internal Crossover allows the DC 24 to operate as a two-way speaker dividing network along with all of the dynamic characteristics of a fully featured Compressor Limiter. In addition to this application, the DC 24 supplies the necessary circuitry to allow the unit to divide a single channel of audio information in two separate frequency ranges and to then recombine the program material into one Channel. Using the DC 24 in this way eliminates the pumping and breathing associated with compression and limiting when only one Channel is used to cover the entire audio spectrum.

To use the DC 24 as a conventional dual channel compressor/limiter, ensure that the CROSSOVER ENGAGE

switch on the rear is in its out position. Attach one or two channels of inputs and outputs to the respective connectors on the rear.
With all RATIOS down, LIMITER THRESHOLD all the way up and the LEVEL controls in center-detent you have an expensive
patch cord. Make sure the BYPASS switches are out and set the GATE and COMPRESSOR for the desired ratios and thresholds.
Turning the LIMITER THRESHOLD down decreases the level at which limiting occurs. The GATES and COMPRESSORS may
both be activated by the source material applied to Channel 1 if the DUAL/SLAVE switch is pressed in. This is a normal condition
for true stereo program material.
To use the DC 24 's crossover bandsplit mode, be sure the rear panel CROSSOVER ENGAGE switch is in. Connect the input to
CH 1/CROSSOVER IN. With the rear panel OUTPUTS switch set to SEPARATE, split outputs are available at the CH 1/LOW
OUT and CH 2/HIGH/COMBINE OUT jacks. With the OUTPUTS switch at COMBINE, use only the CH 2/HIGH/COMBINE
OUT jack for a mono sum of high and low channels.
NEVER CONNECT ANYTHING EXCEPT AN RS 1 OR OTHER APPROVED RANE AC POWER SUPPLY TO THE
THING THAT LOOKS LIKE A TELEPHONE JACK ON THE REAR OF THE DC 24.