K Series K1 Operation Manual 19 21 B BA A LL A AN NC CE ED D C CU UR RR RE EN N TT A AM MP P LL II FF II E ER R 17 25 30 45 100 15 13 11 TLC 9 7 5 3 1 1 0 dB Clip IOC Signal 19 21 17 25 30 45 100 15 13 11 9 7 5 3 2 Enable 1 0 dB K2 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.
K Series Power Amplifiers Important Safety Instructions 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) 15) 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. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
K Series Power Amplifiers Table of Contents Important Safety Instructions ................................................ 2 4 Operation ...................................................................... 9 Table of Contents ................................................................. 3 4.1 Precautions ............................................................. 9 1 Welcome ........................................................................ 4 4.2 Front Panel Controls and Indicators .....
K Series Power Amplifiers 19 21 17 25 30 45 100 B BA A LL A AN NC CE ED D C CU UR RR RE EN N TT A AM MP P LL II FF II E ER R 15 13 11 TLC 9 7 5 3 1 1 0 dB Clip IOC Signal 19 21 17 25 30 45 100 15 13 11 9 7 5 3 2 Enable 1 0 dB 1 Welcome Congratulations on purchasing a Crown K Series amplifier. It is designed to provide very high power in a lightweight package, without using a cooling fan. This means your amp runs quieter (no fan noise) and cleaner (no need for filters).
K Series 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. Save the shipping carton as evidence of damage for the shipper’s inspection. We also recommend that you save all packing materials so you will have them if you ever need to transport the unit.
K Series Power Amplifiers 3 Setup 3.4 Choose Input Wire and Connectors Crown recommends using pre-built or professionally wired, balanced line (two-conductor plus shield), 22-24 gauge cables and connectors. Use either 3-pin male XLR connectors or TRS phone connectors. Figure 3.3 shows connector pin assignments for balanced wiring, and Figure 3.4 shows connector pin assignments for unbalanced wiring. NOTE: Custom wiring should only be performed by qualified personnel. Figure 3.
K Series Power Amplifiers 3 Setup 3.6 Set Up and Wire Your System First, turn down the Level controls (fully counterclockwise) and turn off the amplifier. 3.6.1 Set the Mono Modes Switches To run in Stereo Mode: On the back panel, set the Bridge Output switch and the “Y” Input switch OFF. Figure 3.8 Stereo Wiring: Stereo Inputs, Stereo Output to Speakers 3.6.2 Set Input Sensitivity Set the Input Sensitivity switches of each channel to the desired setting (see Figure 3.7). Two choices are available: 1.
K Series Power Amplifiers CH 2 CH 1 Figure 3.10 Wiring for “Y” Mono Input, Dual Output 3.6.5 “Y” Mono Input to Dual Outputs If you want to feed a mono audio signal to two channels, each with its own level control, set the “Y” Input switch ON. This connects both inputs in parallel. You might use this setup if you’re running a monitor speaker on one channel and a main speakers stack on the other channel, and you want to feed them the same signal. See Figure 3.10.
K Series Power Amplifiers 3 Setup 4 Operation 3.7 Connect to AC Mains Connect your amplifier's power cord to the AC mains power source (power outlet). WARNING: The third prong of this connector (ground) is an important safety feature. Do not attempt to disable this ground connection by using an adapter or other methods. Amplifiers don't create energy. The AC mains voltage and current must be sufficient to deliver the power you expect.
K Series Power Amplifiers 4 Operation 4.2 Front Panel Controls and Indicators Figure 4.1 below points out the controls, indicators and connectors on the front panel of the K Series amplifiers. The K1 and K2 look identical except for product nameplates and fuse specifications. begin to protect itself with its TLC protection system by subtly and dynamically reducing the gain as needed. The TLC indicators gradually turn brighter as the TLC protection becomes greater. quick start-up test.
K Series Power Amplifiers 4 Operation 4.3 Back Panel Controls and Connectors Figure 4.3 below points out the controls and connectors on the back panel of the K Series amplifiers. The K1 and K2 look identical except for product nameplates and fuse specifications. E. Bridge Output Switch This switch selects whether or not the output signal is bridged across the two channels. To operate the amplifier in bridge-mono mode, set this switch to ON. To operate the amplifier in dual mode, set this switch to OFF.
K Series Power Amplifiers 5 Advanced Features NOTE: For detailed information about these Crown amplifier features, please consult the Crown Amplifier Application Guide, available on the Crown website at www.crownaudio.com. 5.1 Protection Systems Your Crown amplifier provides extensive protection systems, including protection against shorted outputs, open circuits, DC, mismatched loads, general overheating, high-frequency overloads and internal faults. 5.1.
K Series Power Amplifiers 6 Troubleshooting CONDITION: No power to the amplifier. POSSIBLE REASON: • The amplifier's Power switch is off. • The amplifier is not plugged into the power receptacle. • The amplifier's low-voltage power supply fuse has blown. Return amp to Crown or an authorized Crown Service Center for servicing. CONDITION: Input signal but no sound. POSSIBLE REASON: • The amplifier has just been turned on and is still in the 4-second turn-on delay. • Speakers not connected.
K Series Power Amplifiers 7 Specifications Minimum Guaranteed Power K1 K2 750W 550W 350W 1,250W 800W 500W 1,500W 2,500W 120 VAC, 60 Hz Units, Stereo mode, per channel, both channels driven 1 kHz with 0.1% THD Stereo, 2 ohms per ch. Stereo, 4 ohms per ch. Stereo, 8 ohms per ch. 120 VAC, 60 Hz Units, Bridge mono mode 1 kHz with 0.1% THD 4 ohms K1 K2 Frequency Response (at 1 watt, 20 Hz - 20 kHz) Performance ± 0.25 dB ± 0.
K Series Power Amplifiers 7 Specifications Performance (continued) Cooling K1 K2 Convection cooling Convection cooling Dimensions Width Height Depth EIA Standard 19-inch (48.3 cm) rack mount (EIA RS-310-B) 3.5 inches (8.9 cm 16 inches (40.6 cm) EIA Standard 19-inch (48.3 cm) rack mount (EIA RS-310-B) 3.5 inches (8.9 cm 16 inches (40.6 cm) Weight Net Weight 32 pounds (14.6 kg) 38 pounds (17.
K Series Power Amplifiers 8 Service 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 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.
K Series Power Amplifiers 9 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.
K Series Power Amplifiers 9 Warranty WORLDWIDE EXCEPT USA & CANADA 3 AR YE SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A.
K Series Power Amplifiers Crown Factory Service Information Shipping Address: Crown Factory Service, 1718 W. Mishawaka Rd.