QSC DCA 1222 User Manual

Other manuals for DCA 1222: Brochure, User Manual, User Manual, User Manual

Summary of DCA 1222

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    1 ▼ dca 1222 ▼ dca 1622 ▼ dca 2422 ▼ dca 3022 ▼ dca 3422 dca ™ digital cinema amplifiers td-000075-00 rev. B user manual manuel de l’utilisateur bedienhandbuch manual del usuario p ower off - - dca 3022 28 28 *td-000075-00*.

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    2 erklärung der bildsymbole das blitzzeichen innerhalb eines gleichseitigen dreiecks warnt den benutzer vor nicht isolierter, gefährlicher spannung im inneren des gerätes. Diese spannung ist hoch genug, um personen durch elektrischen schlag zu gefährden. Das ausrufungszeichen innerhalb eines gleichs...

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    3 safe operating levels ........................................... 21 niveaux d'utilisation sécuritaires betriebspegel niveles adecuados de operación applications .................................................. 22, 23 applications anwendungsbeispiele aplicaciones troubleshooting ...................

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    4 declaration of conformity qsc audio products, inc. Declares as its sole responsibility that the above named product is in compliance with the council directive 89/336/eec of 3 may 1989 on the harmonization of the laws of the member states relating to electromagnetic compatibility, as well as requi...

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    5 i n t r o d u c t i o n e i n f Ü h r u n g i n t r o d u c c i Ó n a v a n t - p r o p o s specially designed for cinema applica- tions, the dca series digital cinema amplifiers combine powerwave tm technology and a refined audio structure to provide studio-quality performance with touring-qualit...

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    6 front panel 1. Power switch 2. Cooling vents 3. Gain control (channel 1) 4. Clip, -10 db, -20 db and signal indicator leds, both channels 5. Gain control (channel 2) 6. Power, bridge, and parallel indicator leds 7. Handles 8. Security panel panel frontal 1. Interruptor de encendido 2. Rejillas de ...

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    7 output clip limiter on clip limiter on mode switches mode switches ch 1 ch 2 1+ 1+ 2+ 1- 1- 2- filter on filter on 30 hz filter 30 hz filter bridge on bridge mono off 50 hz inputs parallel stereo 50 hz 1 2 3 4 5 6 7 8 9 10 1+ 2+ pos pos pos neg neg neg pos neg tm tm parallel mode bridge mono mode ...

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    8 clip limiter description when the audio signal drives the amp's output circuit beyond its power capability, it clips, flattening the peaks of the waveform. The clip limiter detects this and quickly reduces the gain to minimize the amount of overdrive. To preserve as much of the program dynamics as...

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    9 input filter description the low-frequency (lf) filter rolls off signals below either 30 hz or 50 hz. This improves bass performance by limiting sub-audio cone motion, making more power available for the speakers' rated frequency range. The filter settings for each channel are controlled individua...

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    10 parallel input mode description the "parallel input" switches let you operate the amplifier in parallel mode, delivering the same signal to both channels without using a y-cable. Each channel drives its own speaker load, with independent gain, filtering, and clip limiting. Set switch positions 4,...

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    11 features & setup bridge mono mode description bridged mono mode combines the power of both amp channels into one speaker, resulting in twice the voltage swing, four times the peak power, and approximately three times the sustained power of a single channel. This mode uses channel 1's input, gain ...

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    12 ch. 1 ch. 1 ch. 2 ch. 2 ch. 1 input ch. 2 input stereo, bi-amp, 2-channel features & setup ch. 1 ch. 1 ch. 2 ch. 2 ch. 1 input ch. 2 input parallel what are the differences among stereo, parallel input, and bridge mono modes? Stereo mode this is the "normal" way of using the amplifier, in which e...

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    13 ch. 1 ch. 1 ch. 2 ch. 2 ch. 1 input ch. 2 input bridged mono features & setup see the additional bridge mono mode warnings on page 11. Bridge mono mode this mode combines the full power capabilities of both channels into a single speaker system. The amplifier internally re-configures so that both...

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    14 3.50" 88.9 m m 13.0" 330.2 mm 13.0" 330.2 mm 14.0" 355.6 mm 17.30 " 440 mm pow er off - - dca 3022 28 28 i n s t a l l a t i o n utiliser les quatre vis et rondelles de montage pour fixer le devant de l'amplificateur sur les rails de montage. Il est recommandé de supporter l'arrière de l'amplific...

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    15 c o n n e c t i o n s clip lim clip lim mode swi mode swi ch ch filter o filter o 30 hz fil 30 hz fil bridge o bridge mono off 50 hz inputs parall stereo 50 hz 1 2 3 4 5 6 7 8 9 10 1 1 shield inputs each channel has active balanced xlr, ¼-inch (6.3 mm), and "euro-style" terminal block inputs wire...

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    16 speakon™ outputs the dca amplifier offers a choice of output connections: two neutrik nl4md speakon jacks and a barrier strip with screw terminals. The speakon connector is designed specially for high-power speaker connections. It locks in place, prevents shock hazard, and assures the correct pol...

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    17 barrier strip outputs turn the amplifier off before touching the output connections. Use spade lugs with insulated barrels to prevent electric shock. Close the shroud over the screw terminals before turning the amplifier on again. 8 4 2 1.6 * Ω Ω Ω Ω 8 4 2 1.6 * Ω Ω Ω Ω * dca 1222 only 16 8 4 3.2...

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    18 c o n n e c t i o n s c o n e x i o n e s c o n n e x i o n s a n s c h l Ü s s e dataport the amplifier features a dataport, which connects to a qscontrol multisignal processor or other qsc cinema accessories via the hd-15 connector. Accessories cinema accessories for the dca amplifiers include ...

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    19 o p e r a t i o n ac power switch before applying power, check all connections and turn down the gain controls. The "soft start" sequence starts with the power indicator led at half brightness. A couple seconds later the fan starts and the amplifier cycles through one second of protective muting,...

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    20 security panel after setting the gain controls, you can install the security panel to prevent tampering and accidental misadjustment. Installing the security panel 1. Use a 9/64" or 3.5 mm hex key to back the screw out several turns. 2. Slide the right end of the security panel just under the scr...

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    21 o p e r a t i o n fan cooling to minimize noise, the fan does not run when the amp is cool, although it may occasionally run while the amp is at idle. As the heat sink temperature increases, the fan turns on and in- creases speed accordingly. The fan varies speed automatically to maintain safe in...

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    22 a p p l i c a t i o n s a p p l i c a t i o n s a n w e n d u n g s - b e i s p i e l e a p l i c a c i o n e s dca 1222 (stereo mode) dca 1222 (stereo mode) dca 1222 (stereo mode) 15" (38 cm) + horn 2 × 18" (45.7 cm) 8" (20 cm) + dome left center right subwoofer surround left surround right 1 1 ...

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    23 a p p l i c a t i o n s a p p l i c a t i o n s a p l i c a c i Ó n e s a n w e n d u n g s - b e i s p i e l e 2 × 15" (38 cm) left center right surround left front surround right front c r l sl sub sr sl sr 2 × 18" (45.7 cm) subwoofer subwoofer dca 1222 (stereo mode) dca 1622 (stereo mode) dca ...

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    24 troubleshooting problem: no sound ➤ ➤ ➤ ➤ ➤ indication: power indicator not lit • check the ac plug. • confirm that the ac outlet works by plugging in another device. If too many amplifiers are used on one outlet, the building's circuit breaker may trip and shut off power. • an overload in bridge...

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    25 no sound (continued) troubleshooting signal p ower -20db -iodb clip 1 c h a n n e l 2 signal p ower -20db -iodb clip 1 c h a n n e l 2 pas de son (suite) ➤ ➤ ➤ ➤ ➤ indication: del de signal fonctionnent normalement • si les del signal, -20db et -10db fonctionnent normalement, le problème se situe...

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    26 ➤ ➤ ➤ ➤ ➤ indication: clip indicator not flashing • this could be caused by a faulty speaker or loose connection. Check the wiring and try another speaker. • the signal source may be clipping. Keep the amplifier gain controls at least halfway up so that the source does not have to be overdriven. ...

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    27 problem: hiss • unplug the amplifier input to confirm that the hiss is coming from the source or a device upstream; erratic or popping noises indicate an electronic fault in the offending unit. • to keep the normal noise floor low, operate the primary signal source at full level, without clipping...

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    28 inner workings an impressive amount of technology is packed "under the hood" of a dca series amplifier. Thousands of watts of power flow inches away from state-of-the-art low noise inputs. Precise circuit layout and thorough protection assure that all of this activity occurs smoothly and safely. ...

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    29 high performance audio. High speed power transistors convert this dc power into the full range audio output which drives the speakers. High-current design and special dual-sense output feedback corrects errors on both sides of the speaker terminals, improving damping and control of speaker motion...

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    30 dca1222 dca1622 dca2422 dca3022 dca3422 output power in watts 20 hz–20 khz @ 0.03% thd 8 Ω per channel 200 300 425 550 700 20 hz–20 khz @ 0.05% thd 4 Ω per channel 325 500 700 900 1100 eia: 1 khz @ 1% thd 8 Ω per channel 215 325 475 625 800 4 Ω per channel 375 550 825 1050 1250 2 Ω per channel 60...

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    31 technische daten s p e c i f i c at i o n s s p É c i f i c at i o n s especificaciones dca1222 dca1622 dca2422 dca3022 dca3422 load protection turn-on/turn-off muting, dc-fault power supply shutdown, clip limiting output circuit type ab ab h h h ab: class ab complementary linear output h: class ...

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    32 w a r r a n t y i n f o r m a t i o n informations de g a r a n t i e g a r a n t i e - b e d i n g u n g e n informaciÓn de g a r a n t Í a disclaimer qsc audio products, inc. Is not liable for any damage to speakers, amplifiers, or any other equipment that is caused by negligence or improper in...

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    33.

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    34 a d d r e s s & t e l e p h o n e i n f o r m a t i o n a d r e s s e p o s t a l e e t n u m É r o s d i r e c c i Ó n y t e l É f o n o a n s c h r i f t u n d t e l e f o n - n u m m e r n mailing address / adresse postale / postanschrift / dirección postal: qsc audio products, inc. 1675 macar...

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    35.

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    36 qsc audio products, inc. 1675 macarthur boulevard costa mesa, california 92626 usa “qsc” and the qsc logo are registered with the u.S. Patent and trademark office. ©1998 & 1999 qsc audio products, inc..