Power-Tech .1 Series Power-Tech 1.1 Operation Manual Power-Tech 2.1 Power-Tech 3.1 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.
Power-Tech .1 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.
Power-Tech .1 Series Power Amplifiers Table of Contents Important Safety Instructions .............................................. 2 5 Advanced Features and Options ......................................... 13 Table of Contents ................................................................. 3 5.1 Protection Systems .................................................... 13 1 Welcome ................................................................................... 4 5.1.1. ODEP .....................
Power-Tech .1 Series Power Amplifiers 1 Welcome Congratulations on purchasing a Crown Power-Tech™.1 Series amplifier. Power-Tech .1 Series amplifiers are compact, professional power amplifiers engineered to meet the most demanding sound reinforcement needs. They compare very favorably to more expensive amplifiers, providing uncolored sound and signal-to-noise ratios commonly associated with recording studios.
Power-Tech .1 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.
Power-Tech .1 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. If you chose the MT-BB input barrier strip option, use bare wire or spade lugs at the amplifier inputs. Otherwise use either 3-pin male XLR connectors or TRS ¼-inch phone connectors. Figure 3.3 shows connector pin assignments for balanced wiring, and Figure 3.
Power-Tech .1 Series Power Amplifiers 3 Setup 3.5 Choose Output Wire and Connectors Crown recommends using pre-built or professionally wired, high-quality, two-conductor, heavy gauge speaker wire. Use bare wire, a dual banana plug or spade lugs on the amplifier end of each speaker cable (Figure 3.5). To prevent the possibility of short-circuits, wrap or otherwise insulate exposed loudspeaker cable connectors.
Power-Tech .1 Series Power Amplifiers 3 Setup 3.6 Wire Your System Turn down the Level controls (fully counterclockwise) and turn off the amplifier before wiring it as described below. Refer to Figure 3.6. 3.6.1 Stereo Mode Set the back panel stereo/mono switch to Stereo. 3.6.3 Parallel-Mono Mode CAUTION: Parallel-Mono wiring requires installation of a jumper wire. Do not switch to Stereo or Bridge-Mono mode until this output jumper wire is removed. INPUTS: Connect input wiring to both channels.
Power-Tech .1 Series Power Amplifiers 3 Setup 3.7 Set Input Sensitivity The input sensitivity switch inside the amplifier is set to 0.775 volt RMS at the factory. (Factory setting for international models is 1.4V). It can be changed to 1.4 volts or a voltage gain of 26 dB. The 26 dB gain setting is equivalent to a sensitivity of 2.1 volts for the Power-Tech 1.1, 2.6 volts for the Power-Tech 2.1 and 3.3 volts for the Power-Tech 3.1. To change the input sensitivity: 1.
Power-Tech .1 Series Power Amplifiers 4 Operation 4.2 Front Panel Controls and Indicators The diagram below explains the controls and indicators on the front panel of the Power-Tech .1 Series. C. Enable Indicator Enable indicator shows the on/off status of the lowvoltage supply. A. Level Controls Continuously variable level controls for each channel. D. Power Switch Power switch (and circuit breaker for the Power-Tech 1.1, Power-Tech 2.1 and 220/240 VAC Power-Tech 3.1). B.
CTs Multi-Channel Power Amplifiers 4 Operation 4.3 Back Panel Controls and Connectors The diagram below explains the controls and connectors on the back panel of the Power-Tech .1 Series. G. Reset Switch Circuit breaker reset switch (100/120 VAC Power-Tech 3.1 only) F. Stereo/mono Switch Stereo/mono switch for selecting Stereo, Bridge-Mono or Parallel-Mono modes. I. XLR Input Connectors Balanced XLR connectors for input. H. Power Cord J.
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Power-Tech .1 Series Power Amplifiers 5 Advanced Features and Options 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 ODEP, ultrasonic/RF protection, drive protection, transformer thermal protection and fuses or circuit breakers to protect the power supplies. 5.1.
Power-Tech .1 Series Power Amplifiers 5 Advanced Features and Options Again, this should be possible only when operating outside rated conditions, as when the amplifier is used to drive a 1-ohm load, or when driving a severely clipped signal. A Power-Tech .1 Series amplifier will not blow its fuse or trip its breaker unless something is wrong. In the rare event that an internal fuse blows, please refer the unit to a qualified technician.
Power-Tech .1 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: No sound. POSSIBLE REASON: • The amplifier has just been turned on and is still in the 4-second turn-on delay.
Power-Tech .1 Series Power Amplifiers 7 Specifications Minimum Guaranteed Power Power-Tech 1.1 Power-Tech 2.1 Power-Tech 3.1 120 VAC, 60 Hz Units, Stereo mode, per channel, both channels driven 1 kHz with 0.1% THD Stereo, 4 ohms per ch. Stereo, 8 ohms per ch. 305 220 460 325 760 540 605 445 910 660 1,525 1,090 605 440 920 655 1,530 1,080 120 VAC, 60 Hz Units, Bridge mono mode 1 kHz with 0.1% THD 8 ohms 16 ohms 120 VAC, 60 Hz Units, Parallel mono mode 1 kHz with 0.
Power-Tech .1 Series Power Amplifiers 7 Specifications Performance (continued) AC Line Current 100 and 120 VAC units 220 and 240 VAC units Ventilation Cooling Dimensions Width Height Depth Weight (120VAC, 60 Hz units) Net Weight Shipping Weight Weight (International units) Net Weight Shipping Weight Operation Manual Power-Tech 1.1 6A 3A Power-Tech 2.1 10 A 5A Power-Tech 3.
Power-Tech .1 Series Power Amplifiers 8 Service Crown amplifiers are quality units that rarely require servicing. Before returning your unit for servicing, please contact Crown Factory Service 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.
Power-Tech .1 Series Power Amplifiers 9 Warranty UNITED STATES & CANADA SUMMARY OF WARRANTY 3 YE AR 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.
Power-Tech .1 Series Power Amplifiers 9 Warranty WORLDWIDE EXCEPT USA & CANADA 3 YE AR SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A.
Power-Tech .1 Series Power Amplifiers Crown Factory Service Information Shipping Address: Crown International, Factory Service, 1718 W. Mishawaka Rd.
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P O W E R - T E C H PT 1.1 S E R I E S AC Power Draw and Thermal Dissipation This document provides detailed information about the amount of power and current drawn from the AC mains by the PT 1.1 amplifier and the amount of heat produced under various conditions. The calculations presented here are intended to provide a realistic and reliable depiction of the amplifier.
P O W E R - T E C H S E R I E S PT 1.1 I t’s hard to please every crowd. But you’ll have a better chance when you use a Crown Power-Tech .1 Series amplifier. Musicians and DJs alike demand a lot from their systems—clean, punchy sound; reliability; ruggedness; smaller size; less weight—all at a reasonable price. And Crown PT .1s bring these benefits and much more to the table. That’s because at Crown, we’ve built our reputation around legendary sound and support. Power-Tech .
PT 1.1 Indicators Protection Construction Enable: This red indicator shows the on/off status of the low voltage power supply. Signal/IOC: Each channel has a two color indicator that flashes green to show signal presence and yellow if the amplifier causes distortion of 0.05% or more. Power-Tech .1 Series amplifiers are protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; input overload and high-frequency blowups.
P O W E R - T E C H PT 2.1 S E R I E S AC Power Draw and Thermal Dissipation This document provides detailed information about the amount of power and current drawn from the AC mains by the PT 2.1 amplifier and the amount of heat produced under various conditions. The calculations presented here are intended to provide a realistic and reliable depiction of the amplifier.
P O W E R - T E C H S E R I E S PT 2.1 I t’s hard to please every crowd. But you’ll have a better chance when you use a Crown Power-Tech .1 Series amplifier. Musicians and DJs alike demand a lot from their systems—clean, punchy sound; reliability; ruggedness; smaller size; less weight—all at a reasonable price. And Crown PT .1s bring these benefits and much more to the table. That’s because at Crown, we’ve built our reputation around legendary sound and support. Power-Tech .
PT 2.1 Indicators Protection Construction Enable: This red indicator shows the on/off status of the low voltage power supply. Signal/IOC: Each channel has a two color indicator that flashes green to show signal presence and yellow if the amplifier causes distortion of 0.05% or more. Power-Tech .1 Series amplifiers are protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; input overload and high-frequency blowups.
P O W E R - T E C H PT 3.1 S E R I E S AC Power Draw and Thermal Dissipation This document provides detailed information about the amount of power and current drawn from the AC mains by the PT 3.1 amplifier and the amount of heat produced under various conditions. The calculations presented here are intended to provide a realistic and reliable depiction of the amplifier.
P O W E R - T E C H S E R I E S PT 3.1 I t’s hard to please every crowd. But you’ll have a better chance when you use a Crown Power-Tech .1 Series amplifier. Musicians and DJs alike demand a lot from their systems—clean, punchy sound; reliability; ruggedness; smaller size; less weight—all at a reasonable price. And Crown PT .1s bring these benefits and much more to the table. That’s because at Crown, we’ve built our reputation around legendary sound and support. Power-Tech .
PT 3.1 Indicators Protection Construction Enable: This red indicator shows the on/off status of the low voltage power supply. Signal/IOC: Each channel has a two color indicator that flashes green to show signal presence and yellow if the amplifier causes distortion of 0.05% or more. Power-Tech .1 Series amplifiers are protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; input overload and high-frequency blowups.
