400 CSL POWER OFF Model: 1400 CSL ® This model may be exported under the name Amcron.® © 1999 by Crown International, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A. Telephone: 219-2948000. Fax: 219-294-8329. The 1400 CSL amplifier is produced by the Professional Audio Division of Crown International, Inc. Trademark Notice: Amcron,® Crown,® CSL®, and ODEP ® are registered trademarks of Crown International, Inc. Other trademarks are the property of their respective owners.
3 YEAR THREE YEAR FULL WARRANTY 3 YEAR WORLDWIDE NORTH AMERICA SUMMARY OF WARRANTY The Crown Audio Division of Crown International, Inc., 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A.
1400 CSL Power Amplifier Important Safety Instructions 1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water. 6) Clean only with a dry cloth. 7) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
1400 CSL Power Amplifier The information furnished in this manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible situation which may arise during installation, operation or maintenance. If your unit bears the name “Amcron,” please substitute it for the name “Crown” in this manual. If you need special assistance beyond the scope of this manual, please contact our Technical Support Group.
1400 CSL Power Amplifier CONTENTS 1 Welcome ....................................................................... 7 1.1 Unpacking ............................................................. 7 1.2 Features ................................................................. 7 2 Installation .................................................................... 8 2.1 Stereo .................................................................... 8 2.2 Mono .........................................................
1400 CSL Power Amplifier POWER OFF Removable Grille and Dust Filter Enable Enable Indicator Switch Fig. 1.1 1400 CSL Front and Back Panels 1 Welcome Congratulations on your purchase of a Crown® 1400 CSL® amplifier. The 1400 CSL amplifier is a compact, professional stereo power amplifier engineered to meet the most demanding sound reinforcement needs.
1400 CSL Power Amplifier 2 Installation 2.1 Stereo Always remove power from the unit and turn the level controls off when making connections. This reduces the chance of loudspeaker damage from loud blasts. Follow the guidelines listed next as well as the steps required for the specific mode of operation: 1. Install the amplifier in a standard 19-inch (48.3-cm) rack or place it on a stable surface. The mounting dimensions are 19 inches (48.3 cm) wide, 3.5 inches (8.9 cm) tall and 16 inches (40.
1400 CSL Power Amplifier Fig. 2.
1400 CSL Power Amplifier 2.3 Input Sensitivity Adjustment The input sensitivity switch inside the amplifier is set to 0.775 volts at the factory. It can be changed to 1.4 volts or a voltage gain of 26 dB as follows: 1.0 1.2 1.4 1.6 20 3000 15 2000 2.5 10 3. Locate the labeled access hole for the sensitivity switch. 8 3 4. Set the switch to the desired position. 5. Replace the access cover plate. 1500 1000 800 6 600 5 4 400 4 When set to 26 dB gain, the 1400 CSL requires a 3.
1400 CSL Power Amplifier 3 Operation 3.1 Precautions Although your amplifier is protected from external faults, the following safety precautions are recommended: 1. There are important differences among the Stereo, Bridge-Mono and Parallel-Mono operating modes. Refer to Sections 2.1 and 2.2. 2. WARNING: Do not change the stereo/mono switch unless the amplifier is first turned off. 3. CAUTION: In Parallel-Mono mode, a jumper is installed between the red output posts.
1400 CSL Power Amplifier This protection circuitry is activated in unusual situations where the unit’s transformer temperature rises to unsafe levels. Under these abnormal conditions, the unit removes power to the high-voltage transformer (the fan will also run in 120 VAC, 60 Hz units). The amplifier will return to normal after it cools to a safe temperature. It is very unlikely that you will ever see a CSL amplifier activate transformer thermal protection as long as it is operated within rated conditions.
1400 CSL Power Amplifier 4 Specifications The following applies to units in Stereo mode with 8-ohm loads and an input sensitivity of 26 dB unless otherwise specified. Standard 1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.1% THD. Full Bandwidth Power: refers to maximum average power in watts from 20 Hz to 20 kHz with 0.1% THD. 120 VAC, 60 Hz Units: refers to amplifiers with dedicated transformers for 120 VAC, 60 Hz power mains.
1400 CSL Power Amplifier ohms, unbalanced. Output Connector: Two sets of color-coded 5-way binding posts (for banana plugs, spade lugs or bare wire). Output Impedance: Less than 10 milliohms in series with less than 2 microhenries. DC Output Offset: Less than 10 millivolts. Output Signal Stereo: Unbalanced, two-channel. evated temperature. A thermal switch imbedded in the transformer protects the power supplies from overload.
00 CSL Power Amplifier Crown specifications are guaranteed for three years. In an effort to provide you with as much information as possible about the high power-producing capabilities of your amplifier, we have created the following power matrices. Minimum Power Specifications Crown’s minimum power specifications represent the absolute smallest amount of output power you can expect from your amplifier when it is driven to full output under the given conditions.
1400 CSL Power Amplifier Crown’s maximum power specifications represent the largest amount of output power you can expect from your amplifier when it is driven to full output under the given conditions. These specifications can be used to prevent loudspeaker and hearing damage. The maximum power matrices include specifications for single cycle and 40 millisecond burst sine waves. Burst signals act like large transient peaks that are present in common source signals.
1400 CSL Power Amplifier 5 Accessories There are two accessories available at the time of this printing: the MT-XLR and the MT-BB. Important: The MTXLR and MT-BB must be installed at a Crown Factory Service Center or the Crown factory. other. Because the MT-XLR connectors are in parallel with the amplifier’s built in phone connectors, an input signal fed to either input can be fed to another amplifier from the unused connector for that channel. 5.
1400 CSL Power Amplifier 6 Service 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: Your repaired unit will be will returned via UPS ground. Please contact us if other arrangements are required. Factory Service Shipping Instructions: CAUTION: To prevent electric shock, do not remove covers. No user serviceable parts inside. Refer servicing to a qualified technician.
1400 CSL Power Amplifier Crown Factory Service Information Shipping Address: Crown Factory Service, Plant 2 SW, 1718 W. Mishawaka Rd.
