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TABLE OF CONTENTS Important Safety Instructions .............................................................. 2 Welcome Product Features .......................................................................................... 5 Introduction Documentation Conventions ........................................................................ 6 Product Registration .................................................................................... 7 Installation Considerations ..............................
IMPORTANT SAFETY INSTRUCTIONS WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture. The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of un-insulated dangerous voltage within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. CAUTION: To reduce the risk of electric shock, do not remove the cover.
IMPORTANT SAFETY INSTRUCTIONS 14. LIGHTNING: For added protection for the unit during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the unit due to lightning and power line surges. 15.
IMPORTANT SAFETY INSTRUCTIONS 26. FCC INFORMATION FOR USER: CAUTION: ANY changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
WELCOME PRODUCT FEATURES Thank you for purchasing the Model 7.250 power amplifier. The Model 7.250 is the perfect foundation for your home stereo or theater system. In addition to the awesome power, the Model 7.250 power amplifier delivers flawless reproduction of musical detail and subtle special effects. The Model 7.250 power amplifier features include: • • • • • • • • • Single-ended RCA or XLR balanced inputs 250 Watts/8 ohms; 400 Watts/4 ohms Remote trigger (works with +3.
INTRODUCTION DOCUMENTATION CONVENTIONS This document contains general safety, installation and operation instructions for the Model 7.250 Power Amplifier. It is important to read this user guide before attempting to use the product. Pay particular attention to safety instructions. The following symbols are used in the document: Appears on the component to indicate the presence of uninsulated, dangerous voltage inside the enclosure – voltage that may be sufficient to constitute a risk of shock.
INTRODUCTION PRODUCT REGISTRATION If you are the original purchaser of this unit and you purchased it in the United States, you should fill out the enclosed warranty registration card and return it to Cary Audio Design within 15 days of your purchase. Cary Audio Design also suggests that you keep your original packing cartons in case you ever need to ship the unit when moving to a new home. Warranty restrictions apply. Consult the warranty section of this manual for details.
INTRODUCTION DO NOT place the Model 7.250 on a windowsill or any location exposed to direct sunlight. DO NOT stack the Model 7.250 directly above heat-producing equipment such as another power amplifier. Power Requirements The Model 7.250 power amplifier is designed to operate from residential or commercial AC current mains. The voltage is 117/234 Volts AC @ 50/60 Hz. Cables The speaker cables from the output posts of the Model 7.
CONTROLS AND DISPLAYS FRONT PANEL POWER BUTTON • The Power Button performs no function when the amplifier is powered off with the rear panel Master Power Switch. • When the rear panel Master Power Switch is powered on, the Model 7.250 is in Standby mode. Pressing the Power Button when the rear panel master panel switch is powered on will activate the power amplifier. When the Model 7.250 is activated, the front panel display lights blue.
OPERATION REAR PANEL 1 & 2. UNBALANCED/BALANCED INPUT 1 TO 7 CONNECTORS Provides audio input for the speakers connected through the unbalanced (RCA) inputs or balanced (XLR) inputs. The illustration below shows the appropriate cable pin-out of XLR connectors. Never make or break connections to the Model 7.250 unless the Model 7.250 and all associated components are powered off. Do not connect the outputs of one channel to the outputs of the other channel or to other amplifiers. 3.
OPERATION top of the receptacle, and tighten the connector. The same procedure should be used for spade connectors. 4. REMOTE TRIGGER INPUT Enables the Model 7.250 to be controlled by an external device with a 3.3V DC minimum to 24V DC maximum trigger output. Connect the trigger output of the external device to the TRIGGER INPUT of the Model 7.250 power amplifier. The Model 7.250 will automatically respond when the external device is powered on and off.
OPERATION Your new Model 7.250 power amplifier is ready for operation after the speaker and the interconnect cables have been installed into their proper sockets. REMOTE TRIGGER POWER ON How to make connections for remote power-on using components equipped with a DC trigger jack: Using an accessory cable with a 1/8” mono mini-plug and the correct connector specified for your source device, follow the procedure below to connect the trigger-output jack on the rear of the source device to the Model 7.
OPERATION SOURCE COMPONENT CONNECTIONS & OUTPUT SETTINGS Make all connections before powering on the Model 7.250. It is also recommended that you power on the source components and processor in your system before powering on the Model 7.250. This avoids the possibility of any pops or transients from other components being amplified and sent to the speakers. Always start with a low volume level on the controller or preamplifier to avoid potential damage to the speakers.
SPECIFICATIONS Operating the Model 7.250 is a simple procedure. It is designed for long term stability in virtually any home operating environment. However, if the unit is operated outside the parameters outlined in this Owner's Manual, damage may result. Please read this manual carefully before putting your new Model 7.250 power amplifier into operation. The following section describes the Model 7.250 power amplifier’s basic specifications.
TROUBLESHOOTING The amplifier does not power on. 1. 2. 3. 4. Check the rear panel circuit breaker. Ensure circuit breaker has not been tripped. Make sure the rear panel Master Power Switch is set to the I (“on”) position. Attempt to activate the amplifier with the front panel standby/on button. Examine the power cord to ensure a good connection between the rear panel AC input connector and the wall outlet. 5. Check the electrical circuit. One or more channels is not passing audio. 1. 2. 3. 4.
MAINTENANCE CARE AND CLEANING Routine maintenance should be performed on a periodic basis. Clean the exterior surfaces of the unit with a soft, dry, lint-free cloth. Do not use alcohol, benzene, acetone-based cleaners, or strong commercial cleaners. Do not use a cloth made with steel wool or metal polish. If the unit is exposed to a dusty environment, a low-pressure blower may be used to remove dust from its exterior. FACTORY SERVICE Careful consideration has been given to the design of your Model 7.
UNITED STATES LIMITED WARRANTY Cary Audio Design warrants to the original United States purchaser for use in the United States that Cary Audio Design vacuum tube or solid state power amplifiers, surround sound processors or preamplifiers shall be free from defects in parts or workmanship for three (3) years from the date of the original purchase.
1020 Goodworth Drive, Apex, NC 27539 phone 919-355-0010 fax 919-355-0013 www.caryaudio.
