Peavey CS 1200X Operating Manual
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Peavey CS 1200X Operating Manual

Peavey professional stereo power amplifier operating guide
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  • Page 2 lntended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
  • Page 3 Total Harmonic Distortion: less than 0.03%, rated power Hum and Noise: 100 dB below rated power, unweighted All the current features of the previous units have been retained, including Peavey’s patented DDTTM compression system and the very flexible back-panel patching capabilities. The two- speed fan cooling system has been improved to automatically provide additional cooling for the two-ohm load conditions.
  • Page 4 2-ohm or greater loading situations. Since the CS 1200X is a “redundant” amplifier, the shutdown of one channel will not affect the opera- tion of the other channel. When the unsafe channel has cooled down to safe limits, operation will be restored in that channel.
  • Page 5 MAINS POWER SWITCH (5) The front panel of the CS 1200X contains a conventional on/off rocker switch. When the ampli- fier is plugged into a suitable power source, activating this switch should light both channel “0”...
  • Page 6 MAINS POWER SOURCE (120V products only) (8) The CS 1200X is fitted with a single heavy-duty #14 AWG 3 conductor line cord and a conven- tional AC plug with a ground pin. It should be connected to an independent mains circuit capable of delivering at least 15 AMPS continuously.
  • Page 7 (70/l 00 volt lines). WARNING: In bridge mode, the CS 1200X is capable of delivering 1200 W RMS into 8 ohms and 1800 W RMS into 4 ohms. Always be very certain that the associated loudspeaker system can handle this power level reliably.
  • Page 8 PL-MODULES are optional accessories and are available in many different crossover frequen- cies. Some modules contain special equalization and padding for a particular Peavey speaker enclosure. Always be sure to select the correct module for your speaker system. Other special- purpose modules are also available for use with this receptacle.
  • Page 9 15 amps continuously. This is most critical for sustained high-power applications into 2 ohms per channel. Never break off the ground pin on the CS 1200X. Always use a qualified electrician to install any necessary electrical equipment. To prevent the risk of shock or fire hazard, always check to see that the amplifiers are properly grounded.
  • Page 10 MODES OF OPERATION 1. STEREO MODE (UNBALANCED INPUTS) The CS 1200X is shipped from the factory with jumper plugs inserted in the transformer ( 12) and crossover (14) accessory sockets. These jumper plugs are necessary if the low-impedance con- nectors (11) are to be used as inputs for each channel. As indicated in Diagram 1, the XLR connectors are wired in an unbalanced configuration (pins 1 and 2 are ground: pin 3 is input).
  • Page 11 CS 1200X, makes up the four independent power amplifiers required for a stereo biamplification system. You will notice that because of the pin-out arrangements of...
  • Page 12 Obviously, for a monaural biamp system (only one mixer feed), only one crossover module is required and only one crossover island will be used. In this case, one channel of the CS 1200X can be patched for the lows and the other channel patched for the highs, resulting in a simple, compact system with outstanding performance.
  • Page 13 The CS 1200X sensitivity controls are calibrated in decibel volts values rather than RMS voltage (usually listed in typical mixer specs), and as such are more useful, since most contemporary mixers employ LED arrays to indicate mixer output levels and are calibrated in decibel volts.
  • Page 14 +3 dB V, we adjust the CS 1200X to a rating of + t2dB V, overall system noise wilt be improved by 9 dB, and the system headroom will decrease 9 dB.
  • Page 15 For con- tinuous operation, the CS 1200X requires a source of cool air. As an added help in locating mismatched or shorted speakers, the DDT active LED is a powerful tool. If this LED flashes...
  • Page 16 Such a system is easily accomplished with the Peavey CS 1200X power amplifier patch panel and associated CS Series plug-in active crossover modules.
  • Page 17 For the CS 1200X, the bridge ratings are now 1200 W RMS into 8 ohms and 1800 W RMS into 4 ohms (minimum load). Bridge-mode operation is accomplished by placing the mode switch (10) in the bridge position, connecting the load between the red binding posts of each channel, and using Channel A as the input channel.

  • Page 18: Specifications

    SPECIFICATIONS Characteristics: (@ 120 V AC, 60 Hz) Output Power: (Typical Value) Stereo mode, both channels driven 2 ohms, 1 kHz, 1% THD 4 ohms, 1 kHz, 1% THD 8 ohms, 1 kHz, 1% THD Bridge mode, mono 4 ohms, 1 kHz, 1% THD 8 ohms, 1 kHz, 1% THD Rated Output Power: Stereo mode, both channels driven...
  • Page 19 k’requency Response: (Typical Value) Stereo mode, both channels driven +O, -1 dB, 1 W RMS, 4 ohms +O, -0.2 dB @ rated output, 4 ohms Damping Factor: (Typical Value) Stereo mode, both channels driven 4 ohms, 1 kHz Hum & Noise: Stereo Mode, both channels driven Below rated output power, 4 ohms Power Consumption:...
  • Page 20 CS42OOX PATCH DIAGRAMS Channel A Channel A (Shielded) Speakers Stereo Mode Channel A Channel B (ShIelded) Speakers PATCH DIAGRAM 1 Stereo Operation Unbalanced High Z Inputs (Typical Home Stereo) Channel A Stereo Mode Jumper Plugs Channei A PATCH DIAGRAM 2 Stereo Operation Balanced Low Z Inputs Jumper Plugs...
  • Page 21 If this product contains tubes or meters, Peavey warrants the tubes or meters contained in the product to be free from defects in material and workmanship for a period of nmety (90) days from date of purchase;...

  • Page 22: Important Safety Instructions

    The user should not attempt to service this equipment, All service work should be done by a qualified service technician. This product should be used only with a cart or stand that is recommended by Peavey Electronics. Exposure to extremely high noise levels may cause a permanent hearing loss. Individuals vary considerably in susceptibility to noise induced hearing loss, but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient time.

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