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. ATS002102 RevD 2/08 PP CP400 & CP700 COMMERCIAL OWNER'S MANUAL POWER AMPLIFIER 7 Input Wiring Balanced Inputs Balanced input wiring requires two conductors with shield (22-gauge is the most common). The use of crimp type spade lugs is highly recommended for permanent installations. At the input section located on the rear of the amplifier, wire the “hot”/positive lead to the “+” terminal, the “common”/negative lead to the “-” terminal and the shield/drain to the “ground” terminal (Figure 3). The XLR inputs (+4 dB balanced line level) can be utilized with standard 3-pin XLR male to female patch cables to accommodate outputs from a mixer, equalizer, or crossover when the amplifier is used as a portable sound system amplifier. Figure 3 Black (-) Shield White (+) Black (-) Shield White (+) OWNER'S MANUAL CP400 & CP700 COMMERCIAL POWER AMPLIFIER CP400 & CP700 COMMERCIAL POWER AMPLIFIER unbalanced Input Unbalanced wiring typically is found on consumer equipment (CD players, DVD players, etc.) and is generally a compromise of noise rejection and cable lengths. A single conductor and an overall shield are most common, as in the standard cables supplied with consumer equipment. Keep unbalanced wire lengths within 10' between equipment, wire the hot lead to the “+” terminal, and the shield to the ground terminal. Install a jumper wire between the “-” terminal and the ground – a loss of gain will result without this jumper (Figure 4). JumperWhite/Red (+) ShieldWhite/Red (+) Shield Figure 4 Specifications are subject to change without notice AtlasSound.com 1601 JACK MCKAYBOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435 ©2008 ATLAS SOUND LPPrinted in U.S.A.ATS002102 RevD 2/08PP Specifications are subject to change without notice AtlasSound.com 1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435 ©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP CP400 & CP700 COMMERCIAL OWNER'S MANUAL POWER AMPLIFIER 9 Speaker Output Wiring Low Impedance Direct Coupled Output (Stereo) For direct coupled operation into 2, 4, and 8 . loads, connect the loudspeaker leads to the barrier strip connections labeled “Direct Output”; connect the hot lead to the “+” terminal and the common lead to the “-” terminal. The use of heavy gauge wiring is recommended to avoid voltage drops, which can occur as a result of wasted power in the cable. Contact Atlas Sound Tech Support (1-800-876-3333) for suggestions on cable capacities. Be sure you know the quantity of speakers and cable lengths before calling (Figure 5). Low Impedance Direct Coupled Output (Parallel Mono) Observe the speaker connection information in the preceeding paragraph (Stereo Direct Coupled Output). With the amplifier turned OFF, move the rear mounted selector switch to the “Parallel” position and connect your mono input wiring to either the channel one or channel two inputs. Both channels will be driven from this mono signal (Figure 6). Switch set to “Parallel” White Black Shield Figure 5 Figure 6 CAUTION AC100V-50/60Hz AC120V-50/60Hz AC230V-50/60Hz AC240V-50/60Hz TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL POWER CP700 Commercial Power Amplifier Per Channel Output Power 400 W / 4 Ohms 350 W / 70.7 V CH-1 CH-1 - 100V + - + 70V - + 25V 8, 4, and 2 Ohms AUDIO TRANSFORMER DIR. OUTPUT + - 0 70 100 ISOL . OUTPUT BRIDGE MONO + CH-2 CH-2 - 100V + - + 70V - + 25V 8, 4, and 2 Ohms AUDIO TRANSFORMER DIR. OUTPUT + - 0 70 100 ISOL . OUTPUT BRIDGE MONO - AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN MADE IN CHINA To direct coupled loudspeakers To direct coupled loudspeakers Optional Jumpers See Note on Page 6 Switch set to “Stereo” OWNER'S MANUAL CP400 & CP700 COMMERCIAL POWER AMPLIFIER CP400 & CP700 COMMERCIAL POWER AMPLIFIER Bridge Mono Configuration (Direct Coupled) If higher power levels are required, the Atlas amplifier can be used in Bridge Mono mode, which utilizes both channels of the amp across the speaker load. With the amplifier turned OFF, move the rear mounted selector switch to the “Bridge” position and connect the input signal to channel one. Connect your speaker load (4 and 8 . only) across the “+” terminals of both channels, with channel 1 being positive and channel 2 being negative (Figure 7). CAuTION: A high voltage potential exists across the two “+” speaker terminals when operating in any Bridge Mode application! To loudspeakers, 4 . minimum CH-1 CH-1 -100V + -+ 70V -+ 25V 8, 4, and 2 Ohms AUDIO TRANSFORMER D I R . O U T P U T I S O L . O U T P U T + 70 1000 BRIDGEMONO+ CH-2 CH-2 -100V + -+ 70V -+ 25V 8, 4, and 2 Ohms AUDIO TRANSFORMER D I R . O U T P U T I S O L . O U T P U T + 70 1000 BRIDGEMONO Switch set to “Bridge” Figure 7 25V, 70.7V, and 100V Transformer Output Wiring For transformer coupled operation into high impedance loads, c...
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