6 0 10 LEVEL 4 8 MASTER 2 CH 1 MASTER 2 6 0 10 LEVEL 4 8 MONO SUB LOW MUTE LOW 2 6 MIN MAX DELAY 4 8 LOW / HIGH LOW / MID 300 400 250 500 180 700 120 1.0k 90 1.5k 80 2.0k 75 3.0k 70 3.6k FREQUENCY 2 6 INACTIVE 0 10 LEVEL 4 HIGH 8 MONO STEREO 2 6 INACTIVE 0 10 LEVEL 4 8 CH 2 MASTER 2 6 0 10 LEVEL 4 LOW 8 MID MUTE 2 4 6 MIN MAX DELAY INACTIVE: MONO SUB 8 LOW / HIGH MID / HIGH 300 400 250 500 180 700 120 1.0k 90 1.5k 80 2.0k 75 3.0k 70 3.
IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any ventilation openings. Install in accordance with manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, registers, stoves, or other apparatus (including amplifiers) that produce heat. 9.
INSTRUCTIONS DE SÉCURITÉ 1. Lisez ces instructions. 2. Gardez précieusement ces instructions. 3. Respectez les avertissements. 4. Suivez toutes les instructions. 5. Ne pas utiliser près d’une source d’eau. 6. Ne nettoyer qu’avec un chiffon doux. 7. N’obstruer aucune évacuation d’air. Effectuez l’installation en suivant les instructions du fabricant. 8. Ne pas disposer près d’une source de chaleur, c-à-d tout appareil produisant de la chaleur sans exception. 9. Ne pas modifier le cordon d’alimentation.
OPERATORS MANUAL AC 22S ACTIVE CROSSOVER CH 1 MASTER 4 6 2 4 8 0 10 LEVEL LOW LOW / HIGH MUTE 300 400 250 500 180 700 120 1.0k 90 1.5k 80 2.0k 75 3.0k 70 3.6k FREQUENCY HIGH STEREO MONO SUB 6 2 4 8 0 10 LEVEL MASTER 6 2 LOW 8 MIN MAX DELAY LOW / MID 4 CH 2 MASTER 6 2 4 8 INACTIVE 6 2 0 10 LEVEL 4 8 0 10 LEVEL MONO LOW INACTIVE LOW / HIGH HIGH INACTIVE: MONO SUB 6 2 4 8 0 10 LEVEL 6 2 MUTE MID 8 MIN MAX DELAY 300 400 250 500 180 700 120 1.0k 90 1.5k 80 2.
FRONT PANEL: STEREO 2-WAY CONFIGURATION 2-way operation: read the top row 1 2 3 4 CH 1 MASTER 4 4 8 0 10 LEVEL MASTER 6 LOW LOW / HIGH HIGH MUTE 300 400 250 500 180 700 120 1.0k 90 1.5k 80 2.0k 75 3.0k 70 3.
REAR PANEL: STEREO 2-WAY CONFIGURATION 2-way operation: read the top row COMMERCIAL AUDIO 100-240 V EQUIPMENT 24TJ 50/60 Hz 7 WATTS AC 22S HIGH OUT Right Input LOW OUT 1 5 CH 2 IN STEREO 2-WAY MADE IN U.S.A. RANE CORP.
FRONT PANEL: MONO 3-WAY CONFIGURATION CH 1 MASTER 4 6 2 4 8 0 10 LEVEL MASTER 3-way operation: read the bottom row 1 LOW LOW / HIGH MUTE 300 400 250 500 180 700 120 1.0k 90 1.5k 80 2.0k 75 3.0k 70 3.
REAR PANEL: MONO 3-WAY CONFIGURATION 5 COMMERCIAL AUDIO 100-240 V EQUIPMENT 24TJ 50/60 Hz 7 WATTS AC 22S HIGH OUT LOW OUT CH 2 IN MODE HIGH OUT 2-way operation: read the bottom row HIGH OUT SUBWOOFER SWITCH MUST BE SET TO 2- CHANNEL FOR MONO 3-WAY ACN 001 345 482 MONO SUB: OMIT MID OUT 3 OMIT MONO Input STEREO 2-WAY MADE IN U.S.A. RANE CORP.
OPERATING INSTRUCTIONS Selecting Crossover Frequencies Most speaker manufacturers supply low and/or high frequency cut‑off points for each driver, especially if these are supplied in a system. These cut‑off frequencies are based on each driver’s performance at and beyond this point, with a certain safety margin to accommodate more gentle filter roll‑offs and resultant higher output beyond the recommended performance range.
Time Delay Adjustment Using a Realtime Analyzer & Pink Noise. This method outlines the use of a realtime analyzer, pink noise generator and flat response microphone to set crossover time Delay. The procedure applies to virtually any analyzer system. We recommend using a one‑third or two‑thirds octave analyzer as either of these is more likely to match your specific crossover points than a one‑octave analyzer.
iv. If turning the MID DELAY control up makes the display reading decrease instead of increase, this means that the high driver is actually in front of the mid driver; adding delay to the mid driver then only worsens the situation. There are a couple of ways to deal with this: a. Try to move the high driver back as far as possible without losing stability in balancing the speaker stack. You may want to raise it up as well to restore dispersion close to the stack.
5. Now release the MID MUTE switch so that the tone is emitted from both the high and mid drivers. Check the reading on the SPL meter: i. If the meter reads +3 dB, then the drivers are properly phase aligned and no Delay is necessary; leave the MID DELAY control at full minimum. ii. If the meter reads less than +3 dB, slowly turn up the MID DELAY control until the meter just reads +3 dB.
Delay vs. Frequency Table If you do not have the equipment necessary to electronically align the system as described in the previous sections, you may use the table below to obtain a rough and approximate phase alignment of your drivers. Measure the horizontal displacement between the voice coils of the two adjacent drivers sharing the same crossover point, then find the column in the table nearest your actual displacement.
Setting the Output Level Controls Choosing the crossover frequencies was the easy part. Now it gets real fun. The idea is to set the output LEVEL controls on the crossover so that the entire speaker system has a uniform, flat response. Unfortunately, the room in which the speakers are placed has a habit of always getting into the act, so things get messy. As a result there seems to be two schools of thought regarding the use of active crossovers. The Set‑lt‑Once‑And-Glue‑lt School.
Setting Levels Using an SPL Meter and Pink Noise Generator Constant Directivity Horn Equalization Modification The MUTE switches on the AC 22S make using an SPL meter an easy and relatively accurate means of tuning a system. First, obtain a good SPL meter from a local electronics or hi-fi store. Second, and perhaps a little trickier, get a hold of a pink noise generator—again try electronics and hi‑fi stores. You may also use a sweep or tone generator in place of a pink noise source.
