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Audio equipment,digital audio, home audio, professional audio systems service manuals and repair information

File information:
File name:sac22man crossover.pdf
[preview sac22]
Size:471 kB
Extension:pdf
Mfg:Rane
Model:sac22 🔎
Original:
Descr:sac22 crossover
Group:Electronics > Consumer electronics > Audio
Uploaded:25-11-2009
User:andymac62
Multipart: 0  1

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File name sac22man crossover.pdf

OPERATORS MANUAL SAC 22 STEREO 2-WAY ACTIVE CROSSOVER QUICK START Whoa, hold on there. Even if you don't read manuals as a matter of principle, at least read this section to avoid hurting yourself or your equipment. Connect the SAC 22 with the power off. Balanced XLR cables are recommended, but if you must convert to ¼" connectors, buy or make a cable like the ones on page Manual-11 and keep them as short as possible. This device uses low impedance balanced line drivers. Do not connect the "+" or "­" output pins to ground, as this may cause the power supply to shut down. For unbalanced use, leave the unused output pin ("+" or "­") unterminated. Consult the speaker manufacturer for the correct crossover FREQUENCY setting. As rugged as some drivers are, many (especially compression drivers) will not accept frequencies outside of their normal range without producing distortion and possibly self-destruction. With all equipment turned off and LEVEL controls down, begin making connections to the system as shown on page Manual-4 or 5. When turning on the system, switch on the power amplifiers last. Now, feed the SAC 22 some program material. Start by turning up the LOW LEVEL and HIGH LEVEL to the 0 dB marks. Slowly increase the INPUT LEVEL, even if it goes all the way to 10, so the +4 dBu (green) light blinks occasionally and the OL (red) light stays out. This delivers the best signal-to-noise performance. The MONO SUB OUTPUT is a sum of the Left and Right Low Outputs. The MONO SUB LEVEL adjusts only this Output and is not affected by the LOW LEVEL control.. When using a single subwoofer along with full-range cabinets that have internal crossovers, set the 100 Hz FILTER to OUT, allowing the front panel FREQUENCY to control the subwoofer crossover point. When used with biamp cabinets and a subwoofer, set the 100 Hz FILTER switch to IN to allow only frequencies below 100 Hz at this output jack. This way, the SAC 22 almost does the job of a Stereo 3-Way crossover, but without removing that awesome bass from the Left and Right Low Outputs. WEAR PARTS: This product contains no wear parts. Manual-1 INPUT LEVEL control and indicators This controls the overall level without altering the relative settings of the Low and High frequency Outputs. Input gain is +6 dB at "10". With signal applied, set this control so the +4 dBu LED lights occasionally, indicating sufficient signal. Flashing of the OL (overload) LED during peaks can be avoided by turning the INPUT LEVEL down. MONO SUB OUTPUT LEVEL control This controls the level of the summed signals of the LEFT and RIGHT LOW OUTPUTS. It may be used instead of, or along with the LOW OUTPUTS. The output may be adjusted with the LEVEL trim from +0 dB to OFF. Unity gain is reached at the "0 dB" mark with the INPUT LEVEL set to "10". LOW LEVEL control This controls the level of signal going to the LOW OUTPUT jacks. Unity gain is reached at the "0 dB" mark with the INPUT LEVEL set to "10". This control does not aff
File name sac22sch crossover.pdf

R21 1K 9.09K GND J2 XLR FEM 10K R23 R25 RIGHT INPUT 3 2 1 + - 5 TL072 3 C7 330pF 6 Z1B R1A 10KA 2 22/25V R27 20K 4 TL072 -15 R35 R34 20K GND -15 R16 10K D2 1N5817 R18 10K 2 +15 C95 0.1 1 5.0V 3 Z3A 4 TL072 R15 3.74K D1 1N5817 R17 10K 1.0V C103 1/50V R19 100K GND R4 1K 9.09K R6 R8 10K GND +15 C96 C1 330pF 3 2 8 0.1 1 Z1A 4 TL072 -15 R5 1K R7 9.09K R9 10K R1B 10KA 6 5 C3 3 6 5 Z3B 7 TL072 -15 D9 R67 10K G -15 D7 8 R20 10K R -15 20K GND GND 2 Z4A 0.1 1 100 C9 3 8 R28 +15 C90 C10 0.33 R29 22.1K C11 0.33 C12 0.33 R30 150K 7 R31 9.53K 5 6 Z4B 7 TL072 RX TO SH. 2 LEVEL GND R22 GND GND 1K 9.09K 10K R24 R26 1 OL +4dBu + +15 C97 8 GND R68 1K GND J1 XLR FEM LEFT INPUT 3 1 2 + - R14 LEVEL GND 4 22/25V GND R10 20K GND 2 Z2A 4 0.1 1 TL072 -15 R32 R33 20K GND 20K R11 100 C4 0.33 R12 22.1K GND C5 0.33 C6 0.33 R13 150K GND 9.53K 5 6 Z2B 7 TL072 LX TO SH. 2 NOTES (UNLESS OTHERWISE SPECIFIED): 1. ALL SWITCHES SHOWN IN THEIR 'OUT' OR 'OFF' POSITION. CROSSOVER 104955-2.SCH LOW/SUB OUT HIGH OUT/PWR SUP 104955-3.SCH 104955-4.SCH ACTION: INPUTS SAC 22 DRAWN BY: H:\SAC22\104955-1.SCH 11-Jun-2001 MKM CHECKED BY: RWJ 10802 47th Avenue West Mukilteo WA 98275-5098 SHEET: 1 of 4 104955 R36 7.15K R37 7.15K C27 C16 C17 .0015 +15 C91 2 3 4 Z33A 0.1 1 TL072 8 R48 33.2K R49 511 C13 470pF GND R46 30.1K GND 20K 5.11K R45 GND .0015 .0015 C18 0.1 GND R42 16 51.1K 1 4 Z6A 8 SSM2164 C123 +15 C101 22/25V C99 0.1 1 R43 R40 +15 R38 FROM SH. 1 20K 2 4 TL072 4 33.2K R41 511 Z14A Z6B RX RIGHT HP TO SH. 3 .0015 C15 +15 7 2 3 TL072 GND -15 C8 470pF GND -15 0.1 GND GND C28 GND -15 33.2K R47 511 Z8A 5 2 9 8 3 0.1 1 SSM2164 8 15 6 3 Z6D 13 SSM2164 6 5 Z33B 7 TL072 R50 10 14 GND 33.2K R51 511 C14 470pF Z6C 12 SSM2164 6 5 Z8B 7 TL072 -15 R39 20K GND R44 C2 470pF RIGHT LP TO SH. 3 11 GND R75 7.15K R76 7.15K C124 LEFT HP 22/25V R77 FROM SH. 1 20K 6 TL072 33.2K R53 511 Z14B Z11B 7 SSM2164 R52 LX 5 TO SH. 3 8 C23 .0015 +15 C88 +15 C29 0.1 GND R54 16 51.1K 1 4 Z11A 8 SSM2164 C24 C25 .0015 +15 C94 Z12A 3 GND -15 4 R55 TL072 33.2K R56 511 C20 470pF GND .0015 .0015 0.1 1 C26 2 2 8 7 5 2 6 R78 20K GND R83 R85 30.1K GND 20K 5.11K R84 C19 470pF GND C30 0.1 GND -15 4 3 9 3 GND Z34A 0.1 1 TL072 -15 R57 33.2K R58 511 C21 470pF GND 15 Z11D 13 SSM2164 6 5 Z34B 7 TL072 R59 10 14 GND 33.2K R60 511 C22 470pF GND Z11C 12 SSM2164 6 5 Z12B 7 TL072 LEFT LP TO SH. 3 11 GND R64 +15 C100 8 GND 2 3 GND -15 Z5A 4 0.1 1 TL072 GND 1.91K R66 100KB 1 2 3 R65 26.7K +15 R63 5 CROSSOVER FREQUENCY C31 + 10/100V GND 511 6 Z5B 7 TL072 R62 10 +C32 10/100V GND VOLTAGE RANGE= .98V->0V FREQUENCY RANGE= 100Hz -> 3.2kHz ACTION: CROSSOVER SAC 22 DRAWN BY: H:\SAC22\104955-2.SCH 11-Jun-2001 MKM CHECKED BY: RWJ 10802 47th Avenue West Mukilteo WA 98275-5098 SHEET: 2 of 4 104955 FROM SH. 2 R2A 10KA 2 1 22/25V 6 TL072 C47 GND 47pF R117 20K GND R121 R122 + 2 - 3 4 RIGHT LP 3 C46 R114 5 Z17B 22/25V 100 R120 100K 7 C48 R119 20K R116 6.8

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