CTs Multi-Channel Series CTs 4200 Operation Manual CTs 8200 Obtaining Other Language Versions: To obtain information in another language about the use of this product, please contact your local Crown Distributor. If you need assistance locating your local distributor, please contact Crown at 574-294-8000. This manual does not include all of the details of design, production, or variations of the equipment.
CTs Multi-Channel Power Amplifiers Important Safety Instructions 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) page 2 Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
CTs Multi-Channel Power Amplifiers DECLARATION of CONFORMITY Crown International, Inc. ISSUED BY: Crown International, Inc. 1718 W. Mishawaka Road Elkhart, Indiana 46517 U.S.A. FOR COMPLIANCE QUESTIONS ONLY: Sue Whitfield 574-294-8289 swhitfield@crownintl.com European Representative's Name and Address: Nick Owen 35, Bassets Field Thornhill Cardiff.
CTs Multi-Channel Power Amplifiers page 4 Important Safety Instructions .......................................................2 5.1.4 35-Hz High-Pass Filter ...........................................14 Declaration of Conformity ............................................................3 5.1.5 AC Under-/Over-Voltage Protection .......................14 1 Welcome ..................................................... 5 5.1.6 Power Fuse .............................................................
CTs Multi-Channel Power Amplifiers CTs 4200 Dual Maximum Average Power in watts with 0.1% THD. 4 Channels Driven 4-ohm (per ch.) 8-ohm (per ch.) 70V (per ch.) 1 kHz 20 Hz–20 kHz 260W 180W 220W 215W 190W 220W* 1 Channel Driven 4-ohm (per ch.) 8-ohm (per ch.) 70V (per ch.) 1 kHz 20 Hz–20 kHz 270W 220W 250W 225W 210W 245W* Bridge-Mono 2 Channel-Pairs Driven 8-ohm (per ch. pair) 16-ohm (per ch. pair) 100V (per ch.
CTs Multi-Channel Power Amplifiers 3 Setup 3.1 Unpack Your Amplifier Please unpack and inspect your amplifier for any damage that may have occurred during transit. If damage is found, notify the transportation company immediately. Only you can initiate a claim for shipping damage. Crown will be happy to help as needed. Save the shipping carton as evidence of damage for the shipper’s inspection.
CTs Multi-Channel Power Amplifiers 3 Setup 3.4 Choose Input Wire and Connectors Figure 3.3 shows connector pin assignments for balanced wiring, and Figure 3.4 shows connector pin assignments for unbalanced wiring. Figure 3.3 Balanced Input Connector Wiring See the Crown Amplifier Application Guide, available online at www.crownaudio.com, for pin assignments for commonly used connector types. When possible, use balanced wiring for signal input, which provides better rejection of unwanted noise and hum.
CTs Multi-Channel Power Amplifiers 3 Setup See the Crown Amplifier Application Guide, available online at www.crownaudio.com, for pin assignments for commonly used connector types. 3.6 Wire Your System CAUTION: Never change the position of the Mode Switch while the amplifier power is on. See Section 5.2.2 for more information. BRIDGE 3.6.1 Dual 8/4 Mode Typical input and output wiring, along with level control and Mode Switch settings are shown in Figure 3.6.
CTs Multi-Channel Power Amplifiers 3 Setup 3.6.3 Bridge-Mono 16/8 Mode CAUTION: Never change the position of the Mode Switch while the amplifier power is on. See Section 5.2.2 for more information. Typical input and output wiring, along with level control and Mode Switch settings are shown in Figure 3.8. Make sure the Mode switch is set to the “Bridge 16/8” position. BRIDGE DUAL DUAL CH 2 CH 1 CH 4 CH 3 DUAL DUAL See the Crown Amplifier Application Guide, available online at www.crownaudio.
CTs Multi-Channel Power Amplifiers 3 Setup 3.7 Connect to AC Mains Connect your amplifier to the AC mains power source (power outlet) with the supplied AC power cordset. First, connect the IEC end of the cordset to the IEC connector on the amplifier; then, plug the other end of the cordset to the AC mains. 3.8 Startup Procedure Use the following procedure when first turning on your amplifier: WARNING: The third prong of this connector (ground) is an important safety feature.
CTs Multi-Channel Power Amplifiers 4 Operation 4.1 Precautions Your amplifier is protected from internal and external faults, but you should still take the following precautions for optimum performance and safety: 1. Before use, your amplifier first must be configured for proper operation, including input and output wiring hookup. Improper wiring can result in serious operating difficulties.
CTs Multi-Channel Power Amplifiers 4 Operation 4.2 Front Panel Controls and Indicators Note: CTs 8200 is shown. Some CTs 4200 features are in different locations. A. Bridge Mode Indicator Yellow LED, one per channel pair, illuminates when the channel pair's Mode Switch is set to the “Bridge” position. If Mode switch is changed while amplifier is powered up, Bridge LED will flash, indicating that the amplifier must be powered off and on to reset the Mode. See Section 6.9. B.
CTs Multi-Channel Power Amplifiers 4 Operation 4.3 Back Panel Controls and Connectors Note: CTs 8200 is shown. Some CTs 4200 features are in different locations. K. AC Power Cord Connector Standard IEC type 320 inlet. 120V models: 15-amp. 220-240V models: 10-amp. Voltage is indicated above IEC inlet. L. Output Connectors One four-pole terminal strip for every two channels with touch-proof cover. Accepts up to 10 AWG terminal forks.
CTs Multi-Channel Power Amplifiers 5 Advanced Features and Options NOTE: For more information about these Crown amplifier features, please visit the Crown website at www.crownaudio.com. 5.1 Protection Systems Your Crown amplifier provides extensive protection and diagnostic capabilities, including thermal level control, fault indicators, automatic high-pass filtering, DC protect, AC under-/over-voltage protection, inrush limiting, and variable-speed fans. 5.1.
CTs Multi-Channel Power Amplifiers 5 Advanced Features and Options 5.2.4 Channel Level Control The signal level for each input can be attenuated accurately by adjusting the 21-step Level Control (see Section 4.2). Figure 5.2 shows the amount of attenuation in dB for each detent. Note: Attenuation per detent varies with operating mode since gain varies with operating mode. Attenuation amounts shown may vary ±6%. ATTENUATION in dB Detent 4/8 Ohm 70V 100V 0 (full CCW) -68.31 -72.90 -71.02 1 -67.
CTs Multi-Channel Power Amplifiers 5 Advanced Features and Options 5.3 Options Below are some available options. For current options, visit the Crown website at www.crownaudio.com. 5.3.1 Control Modules IQ-MC (IQ Module): See Figure 5.3. A single IQMC module provides IQ control and monitoring capability to all channels of the amplifier.
CTs Multi-Channel Power Amplifiers 6 Troubleshooting CONDITION: Power indicator is off. CONDITION: Fault indicator is on. POSSIBLE REASON POSSIBLE REASON: • The amplifier has lost AC power. • • The amplifier’s Power switch is off. • The amplifier is not plugged into the power receptacle. • The amplifier output level is so high that the power supply fuse has blown. Verify that input levels and output impedances are within safe ranges.
CTs Multi-Channel Power Amplifiers 6 Troubleshooting CONDITION: No sound, even though the amp has power. Power LED is on without flashing and the amp is receiving an input signal. Signal indicator is flashing. CONDITION: Thermal indicator is flashing. POSSIBLE REASON: • • Speakers not connected. • Open circuit due to speaker failure. • There is a short on the amplifier output. First disconnect your speakers from the affected channel(s) one by one to determine if one of the loads is shorted.
CTs Multi-Channel Power Amplifiers 7 Specifications CTs 4200: MINIMUM GUARANTEED POWER (in watts, 0.1% THD) 120VAC, 60 Hz units Dual Mode 4 Channels Driven 1 kHz Figure 7.1 CTs 4200 Power Chart 4 Ohm 8 Ohm 70V (25 Ohm) at 0.1% THD Bridge-Mono Mode Channel Pairs Driven 2 20 Hz - 20 kHz 260 180 220 215 190 220* 1 1 kHz 1 kHz 270 210 240 270 220 250 20 Hz - 20 kHz 225 210 245* 2 1 kHz 8 Ohm 16 Ohm 100V (50 Ohm) at 0.
CTs Multi-Channel Power Amplifiers 7 Specifications The following specifications apply to all models in Dual 8/4 ohm mode with 8-ohm loads unless otherwise specified. Performance Frequency Response (at 1 watt, 20 Hz - 20 kHz) Phase Response (at 1 watt, 10 Hz - 20 kHz) Signal to Noise Ratio below rated power (20 Hz to 20 kHz) CTs 4200 CTs 8200 ± 0.5 dB ± 0.5 dB ± 35° ± 35° 100 dB unweighted 100 dB unweighted Total Harmonic Distortion (THD) at 1 watt, from 20 Hz to 20 kHz < 0.05% < 0.
CTs Multi-Channel Power Amplifiers 7 Specifications Figure 7.3 CTs 8200 Typical Frequency Response (1 W) Figure 7.4 CTs 8200 Typical Phase Response (1 W) Figure 7.5 CTs 8200 Typical Damping Factor vs.
CTs Multi-Channel Power Amplifiers 7 Specifications Figure 7.6 CTs 8200 Typical Output Impedance vs. Frequency Figure 7.7 CTs 8200 Typical Crosstalk vs.
CTs Multi-Channel Power Amplifiers 8 AC Power Draw and Thermal Dissipation AC Power Draw and Thermal Dissipation: Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz. Typical line impedance used. Measurements made with 120VAC mains. Line current figures for 230VAC units derived by multiplying 120VAC figures by 0.5. Data based on all channels driven. CTs 4200 Load Rated Power Line Current 120VAC Line Current 230VAC At Idle (8.
CTs Multi-Channel Power Amplifiers 8 AC Power Draw and Thermal Dissipation AC Power Draw and Thermal Dissipation: Pink noise 12dB crest factor, bandwidth limited 22Hz to 22kHz. Typical line impedance used. Measurements made with 120VAC mains. Line current figures for 230VAC units derived by multiplying 120VAC figures by 0.5. Data based on all channels driven. CTs 8200 Load Rated Power Line Current 120VAC Line Current 230VAC At Idle (8.
CTs Multi-Channel Power Amplifiers 9 Service Crown amplifiers are quality units that rarely require servicing. Before returning your unit for service, please contact Crown Technical Support to verify the need for servicing. This unit has very sophisticated circuitry which should only be serviced by a fully trained technician. This is one reason why each unit bears the following label: CAUTION: To prevent electric shock, do not remove covers. No user serviceable parts inside.
CTs Multi-Channel Power Amplifiers 10 Warranty UNITED STATES & CANADA SUMMARY OF WARRANTY 3 AR YE Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown product, for a period of three (3) years from the date of purchase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship.
CTs Multi-Channel Power Amplifiers 10 Warranty 3 AR YE WORLDWIDE EXCEPT USA & CANADA SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A.
CTs Multi-Channel Power Amplifiers NOTES page 28 Operation Manual
CTs Multi-Channel Power Amplifiers Crown Audio Factory Service Information Shipping Address: Crown Audio Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517 PLEASE PRINT CLEARLY SRA #: __________________(If sending product to Crown factory service.
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