Page 2 - IMPORTANT; FCC COMPLIANCE NOTICE
Operation Manual CTs Multi-Channel Power Amplifiers page 2 1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water. Do not expose to dripping or splashing. Do not place objects filled with liquid on unit. 6) Cl...
Page 3 - DECLARATION of CONFORMITY; European Representative's Name and Address:
page 3 CTs Multi-Channel Power Amplifiers Operation Manual DECLARATION of CONFORMITY Crown International, Inc. Sue [email protected] European Representative's Name and Address: Nick Owen19 Clos Nant CoslechPontprennauCardiffCF23 8ND United Kingdom Equipment Type: Commerci...
Page 5 - Welcome; IQ System
page 5 CTs Multi-Channel Power Amplifiers Operation Manual 1 Welcome Building on the foundation of the Com-Tech ® Series, Crown’s CTs Series offers new flexibility and value for installed sound applications. The Com-Tech Series were the first to offer inde-pendent selection of high- and low-impedanc...
Page 6 - Unpack Your Amplifier; Input wiring cables; Install Your Amplifier; Figure 3.2 illustrates standard amplifier airflow.; Setup
Operation Manual CTs Multi-Channel Power Amplifiers page 6 Power Data 1 2 Bridge 3 4 Bridge Fault Thermal Clip Signal Ready 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 transpor-tation company ...
Page 7 - Amplifier Application Guide,; Figure 3.5 Output Connector Wiring
page 7 CTs Multi-Channel Power Amplifiers Operation Manual 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. When possible, use balanced wiring for signal input, which provides be...
Page 8 - cation Guide
Operation Manual CTs Multi-Channel Power Amplifiers page 8 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. 3.6.1 Dual 8/4 Mode Typical input and output wiring, along with level control and Mode Switch...
Page 10 - Connect to AC Mains; Startup Procedure; Amplifier Application Guide; Limits for Various Amplifier Models
Operation Manual CTs Multi-Channel Power Amplifiers page 10 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 ...
Page 11 - Operation
page 11 CTs Multi-Channel Power Amplifiers Operation Manual 4. WARNING: Never connect the output to a power supply, battery or power main. Electrical shock may result. 5. Tampering with the circuitry, or making unauthorized circuit changes may be hazard-ous and invalidates all agency listings, and m...
Page 12 - A. Bridge Mode Indicator; Green LED, one per channel, illuminates to; G. Ventilation Grille; Yellow LED indicates IQ Loop data activity; Power Indicator; Blue LED indicates amplifier has been
Operation Manual CTs Multi-Channel Power Amplifiers page 12 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, illumi-nates when the channel pair's Mode Switch is set to the “B...
Page 13 - K. AC Power Cord Connector; If this is not done, the Bridge
page 13 CTs Multi-Channel Power Amplifiers Operation Manual 4.3 Back Panel Controlsand 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 ...
Page 14 - Protection Systems; Advanced Features; Dual mode for 4 or 8 ohm operation.
Operation Manual CTs Multi-Channel Power Amplifiers page 14 NOTE: For more information about these Crown amplifier features, please visit the Crown web-site at www.crownaudio.com. 5.1 Protection Systems Your Crown amplifier provides extensive protection and diagnostic capabilities, including thermal...
Page 15 - Detent; ATTENUATION in dB; Figure 5.2 Level-control Attenuation per Detent
page 15 CTs Multi-Channel Power Amplifiers Operation Manual 5.2.4 Channel Level Control The signal level for each input can be attenu-ated 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 dete...
Page 16 - See Figure 5.5. Used in conjunction with; Choosing the Right Module; MC MODULE
Operation Manual CTs Multi-Channel Power Amplifiers page 16 Wall-Mount level control panels for use with VCA module: 1-VCAP: See Figure 5.5. Used in conjunction with a VCA-MC module, this is a single-gang panel pro-viding remote volume control for one or more CTs amplifier channels. The potentiomete...
Page 17 - CONDITION: Power indicator is off; Troubleshooting
page 17 CTs Multi-Channel Power Amplifiers Operation Manual CONDITION: Power indicator is off . 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 s...
Page 18 - CONDITION: Bridge LED is flashing
Operation Manual CTs Multi-Channel Power Amplifiers page 18 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. • Speakers not connected. • Open circuit due to speaker failure. CONDITION: No inpu...
Page 19 - Specifications; Power Chart; Channels Driven; CTs 4200: MINIMUM GUARANTEED POWER; Dual Mode; Channel Pairs Driven; CTs 8200: MINIMUM GUARANTEED POWER
page 19 CTs Multi-Channel Power Amplifiers Operation Manual 7 Specifications Figure 7.1 CTs 4200 Power Chart Figure 7.2 CTs 8200 Power Chart Channels Driven 2 4 1 2 1 1 kHz 20 Hz - 20 kHz 1 kHz 1 kHz 20 Hz - 20 kHz 4 Ohm 260 215 270 270 225 8 Ohm 200 190 210 220 210 70V ( 25 Ohm) at 0.1% THD 220 220...
Page 20 - Performance
Operation Manual CTs Multi-Channel Power Amplifiers page 20 7 Specifications Performance CTs 4200 CTs 8200 Frequency Response (at 1 watt, 20 Hz - 20 kHz) ± 0.5 dB ± 0.5 dB Phase Response (at 1 watt, 10 Hz - 20 kHz) ± 35° ± 35° Signal to Noise Ratio below rated power (20 Hz to 20 kHz) 100 dB unweight...
Page 21 - Figure 7.5 CTs 8200 Typical Damping Factor vs. Frequency
page 21 CTs Multi-Channel Power Amplifiers Operation Manual 7 Specifications Figure 7.3 CTs 8200 Typical Frequency Response (1 W) Figure 7.4 CTs8200 Typical Phase Response (1 W) Figure 7.5 CTs 8200 Typical Damping Factor vs. Frequency
Page 22 - Figure 7.6 CTs 8200 Typical Output Impedance vs. Frequency
Operation Manual CTs Multi-Channel Power Amplifiers page 22 Figure 7.6 CTs 8200 Typical Output Impedance vs. Frequency Figure 7.7 CTs 8200 Typical Crosstalk vs. Frequency 7 Specifications
Page 23 - AC Power Draw and Thermal Dissipation:
page 23 CTs Multi-Channel Power Amplifiers Operation Manual 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 figure...
Page 25 - Worldwide Service; Before sending a Crown product to the factory; Crown Factory Service; Service
page 25 CTs Multi-Channel Power Amplifiers Operation Manual Crown amplifiers are quality units that rarely require servicing. Before returning your unit for servicing, please contact Crown Technical Support to verify the need for servicing. This unit has very sophisticated circuitry which should onl...
Page 26 - SUMMARY OF WARRANTY; UNITED STATES & CANADA
Operation Manual CTs Multi-Channel Power Amplifiers page 26 YEAR 3 SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUB-SEQUENT OWNER of each NEW Crown product, for a period of three (3) years from t...
Page 27 - WORLDWIDE EXCEPT USA & CANADA
page 27 CTs Multi-Channel Power Amplifiers Operation Manual YEAR 3 10 Warranty WORLDWIDE EXCEPT USA & CANADA SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUB-SEQUENT OWNER of each NEW Crown1 ...
Page 28 - NOTES
Operation Manual CTs Multi-Channel Power Amplifiers page 28 NOTES
Page 29 - Crown Factory Service Information; NATURE OF PROBLEM; If warranty has expired, payment will be:
page 29 CTs Multi-Channel Power Amplifiers Operation Manual Crown Factory Service Information Shipping Address: Crown Factory Service, 1718 W. Mishawaka Rd., Elkhart, IN 46517 Phone: 1-800-342-6939 or 1-574-294-8200 Fax: 1-574-294-8124 Owner’s Name: __________________________________________________...