|File name:||ac23man active crossover.pdf |
|Descr:||ac23 active crossover|
|Group:||Electronics > Consumer electronics > Audio|
|Information about the files in archive:|
File name ac23man active crossover.pdf
OPERATORS MANUAL AC 23 ACTIVE CROSSOVER QUICK START This is an automatic crossover! By automatic, we mean that the AC 23 is smart enough to know whether you want to run it as a two channel crossover, or as a single channel unit. It knows by the way the plugs are inserted how your system is to be configured. However, just because it is automatic, doesn't mean that it will not automatically confuse you when you try to connect it in a bench test situation. Note: Labels above the controls refer to the unit being operated in the 2- or 3Way Stereo mode. Labels below the controls refer to the unit being operated in the 4- or 5-Way Mono mode. Plugging a signal into the CHANNEL 1 INPUT and nothing into the CHANNEL 2 INPUT tells the unit that you are running a single channel system in Mono 4- or 5-Way mode, and therefore sets the unit up to be a single channel device. This can lead one to think that there are some dead channels in the unit when looking for output in places where there shouldn't be any. The even more automatically confusing part is the way that the Output connectors decide whether the unit is a 4-Way or 5-Way crossover. It is actually rather straightforward. To test the unit as a Mono 4-Way, first slide the CHANNEL 1 and 2 switches on the back to 3-WAY. Connect the INPUT source to CHANNEL 1 only. Following the labels below the jacks, look at SUB OUT, then look at LOW OUT, now go back to MID OUT, and then proceed to the HIGH OUT. So far, so good. To test the AC 23 as a Mono 5-Way, the only precaution required is there must be a "dummy" plug (¼" unconnected plug) inserted into the HI MID OUT to program the crossover properly. When you reach the point where you want to measure the output of the channel with the dummy in it, simply remove it and insert your test output plug in that location. When operating the AC 23 as a Stereo 3-Way, follow the diagram on page Manual-5, reading the labels above the jacks and controls. To drive both Channels with a mono signal, connect only to the CHANNEL 2 INPUT. This approach is the same as if you used a wye cable to both Inputs. The AC 23B is available as a fully balanced output version equipped with XLR connectors (for inputs and outputs) instead of the ¼" jacks. If you are connecting to balanced amplifiers from the AC 23 or are running crossover output cable lengths greater than 10 feet (or 3 meters), we highly recommmend you purchase an AC 23B. 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. This is an 18 VAC center-tapped power unit. Consult the Rane factory for replacement or substitution. AC 23 CONNECTION Balanced/Unbalanced Inputs The ¼" Input jacks on the AC 23 are TRS (tip-ringsleeve). We recommend connecting the AC 23 with a balanced cable from the balanced output of a mixer or equalizer. If a balanced output is not available, and the cable run is less than ten feet (three meters), inserting an unbalanced ¼"
File name ac23sch active crossover.pdf