Cary Audio Design 7.25 User Manual

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Model 7.250

Power Amplier

OWNER’S MANUAL

NOTE: Before installing your new component, please read this manual carefully

as it will inform you of the product specications, proper installation and correct

operating procedures for your unit. Also included in this manual are guidelines
on how to service and care for your new Cary Audio Design product.

TABLE OF CONTENTS

Important Safety Instructions .............................................. 2

Welcome

Product Features ....................................................................... 5

Introduction

Documentation Conventions .................................................... 6

Product Registration ................................................................. 7

Installation Considerations ....................................................... 7

Controls & Displays

Front Panel ............................................................................... 9

Rear Panel ............................................................................... 10

Operation

Remote Trigger Power On ..................................................... 13

Power Connection Safety ....................................................... 13

Source Component Connections & Output Settings .............. 14

Protection Mode ..................................................................... 14

Specifications

Specifications ......................................................................... 15

Troubleshooting

Troubleshooting ...................................................................... 16

Maintenance

Care and Cleaning .................................................................. 18

Factory Service ...................................................................... 18

Non-Warranty Repairs ........................................................... 18

United States Limited Warranty ........................................ 19

1

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. There are no user serviceable parts
inside. Please refer to qualified personnel for service.

ALERT: The exclamation point within an equilateral triangle is intended to alert the user of the presence of
important operating and maintenance (servicing) instructions in the literature accompanying the component.

1. READ ALL INSTRUCTIONS: All the safety and operating instructions of your Cary Audio equipment

should be read before power is applied to the equipment.

2. RETAIN OWNER'S MANUAL: These safety and operating instructions should be retained for future

reference.

3. HEED WARNING: All warnings on the unit and in the operating instructions should be adhered to.

4. FOLLOW INSTRUCTIONS: All operating and use instructions should be followed.

5. CLEANING: Unplug the unit from the wall outlet before cleaning. The unit should be cleaned only as

recommended by the manufacturer.

6. ATTACHMENTS: Do not use attachments not recommended by the unit manufacturer as they may cause

hazards.

7. WATER AND MOISTURE: Do not use the unit near water - for example, near a bath tub, wash bowl,

kitchen sink, or laundry tub; in a wet basement; or near a swimming pool.

8. ACCESSORIES: Do not place the unit on an unstable cart, stand, tripod, bracket, or table. The unit may

fall, causing serious injury to a child, an adult, or damage to the unit. Mounting of the unit should follow the
manufacturer's instructions and should use a mounting accessory recommended by the manufacturer.

9. VENTILATION: Slots and openings in the cabinet are provided for ventilation to ensure reliable operation

of the unit and to protect it from overheating. These openings must not be blocked or covered. The top or
bottom panel openings should never be blocked by placing the unit on a bed, sofa, rug, or other similar
surface. The unit should not be installed in a built-in location such as a bookcase or rack unless proper
ventilation is provided. There should be free space of at least 6 inches (16cm) above the unit and an opening
behind the unit.

10. GROUNDING OR POLARIZATION: The unit may be equipped with a polarized alternating current line

plug (a plug having one blade wider than the other). This plug will fit into the power outlet only one way.
This is a safety feature. If you cannot insert the plug fully into the outlet, try reversing the plug. If the plug
should fail to fit, contact a licensed electrician to replace your obsolete outlet. Do not defeat the safety
purpose of the polarized plug.

11. POWER SOURCES: The unit should be operated only from the type of power source indicated on the

marking label. If you are not sure of the type of power supplied to your home, consult your unit dealer or
local power company.

12. POWER CORD PROTECTION: Power supply cords should be routed so that they are unlikely to be

walked on or pinched by items placed on or against them. Pay close attention to cords where they enter a
plug, or a convenience receptacle, and the point where they exit from the unit.

2

IMPORTANT SAFETY INSTRUCTIONS

13. OUTDOOR ANTENNA GROUNDING: If an outside antenna or cable system is connected to the unit, be

sure the antenna or cable system is grounded so as to provide protection against voltage surges and built-up
static charges. Article 810 of the National Electrical Code, NSI/NFPA 70, provides information regarding
proper grounding of the mast and supporting structure, grounding of the lead-in wire to an Antenna­discharge unit, size of grounding conductors, location of antenna-discharge unit, connection to grounding
electrodes, and requirements for the grounding electrode.

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. POWER LINES: An outside antenna system should not be located in the vicinity of overhead power lines

or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing
an outside antenna system, take extreme care to keep from touching such power lines or circuits as contact
with them might be fatal.

16. OVERLOADING: Do not overload wall outlets, extension cords, or integral convenience receptacles as

this can result in a risk of fire or electric shock.

17. OBJECT AND LIQUID ENTRY: Never push objects of any kind into the unit through openings as they

may touch dangerous voltage points or short-out parts that could result in a fire or electric shock. Never spill
liquid of any kind on the unit.

18. SERVICING: Do not attempt to service the unit yourself as opening or removing covers may expose you to

dangerous voltage or other hazards. Refer all servicing to qualified service personnel.

19. REPLACEMENT PARTS: When replacement parts are required, be sure the service technician has used

replacement parts specified by the manufacturer or have the same characteristics as the original part.
Unauthorized substitutions may result in fire, electric shock or other hazards.

20. SAFETY CHECK: Upon completion of any service or repairs to the unit, ask the service technician to

perform safety checks to determine that the unit is in proper operating condition.

21. WALL OR CEILING MOUNTING: The unit should be mounted to a wall or ceiling only as

recommended by the manufacturer.

22. HEAT: The unit should be situated away from heat sources such as radiators, heat registers, stoves, or other

units (including amplifiers) that produce heat.

23. IMPORTANT SAFETY NOTE: Before connecting a new component to your audio or home theater

system it is always good practice to make certain that all components are turned off, and preferably
unplugged from their AC power source. Many modern electronics products feature automatic turn-on
circuits that may be activated during an installation, causing the potential for damage to electronic
components and/or speakers. Such damage is not covered by product warranties and Cary Audio specifically
disclaims responsibility for any such damage.

Power Cord: The removable power cord that is shipped with the player is specifically designed to be used
with this product. Other AC cords may be used, so consult your dealer for advice on AC power cords and

high quality wire in your system.
AC Fuse: The fuse is located inside the chassis and is not user serviceable. If power does

not come on, contact your authorized service representative.

Wiring: Cables that run inside of walls should have the appropriate markings to indicate compliance with,
and listing by the UL, CSA or other standards required by the UL, CSA, NEC or your local building code.
Questions about cables inside of walls should be referred to a qualified custom installer, or a licensed
electrician or low-voltage contractor.

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IMPORTANT SAFETY INSTRUCTIONS

Do Not Open the Cabinet: There are no user serviceable components inside this product. Opening the
cabinet may present a shock hazard, and any modification to the product will void your warranty. If water or
any metal object, such as a paper clip, coin, or staple accidentally falls inside the unit, disconnect it from the
AC power source immediately and contact Cary Audio for further instructions.

24. RECORDING COPYRIGHT: Recording of copyrighted material for other than personal use is illegal

without permission of the copyright holder.

25. NOTE TO CATV SYSTEM INSTALLER: This reminder is provided to call the CATV system installer's

attention to article 820-40 of the NEC, ANSI/NFPA 70, which provides guidelines for proper grounding
and, in particular, specifies that the cable ground shall be connected to the grounding system of the building,
as close to the point of cable entry as practical.

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. This equipment generates and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from where the receiver is connected.

- Consult the dealer or an experienced electronic technician for help.

27. OUTDOOR ANTENNA INSTALLATION/SAFE ANTENNA

AND CABLE CONNECTION: If an outside antenna or cable
system is connected to the equipment, be sure the antenna or cable
system is grounded so as to provide protection against built up static
charges and voltage surges, Section 810 of the national Electrical
Code, ANSI/NFP A70 (in Canada, part 1 of the Canadian Electrical
Code) provides information with respect to proper grounding of the
mast and supporting structure, grounding of the lead-in wire to an
antenna discharge unit, size of grounding conductors, location of
antenna discharge unit, connection to grounding electrodes and
requirements for the grounding electrode.

Keep Antenna Clear of High Voltage Power Lines or Circuits
An outside antenna system should be located well away from power lines, electric light or power circuits
and where it will never come into contact with these power sources if it should happen to fall. When
installing an outside antenna, extreme care should be taken to avoid touching power lines, circuits or other
power sources as this could be fatal. Because of the hazards involved, antenna installation should be left to a
professional.

4

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 +3.3 to +24 Volts DC)
 Protection against short circuits, device failures, mis-wiring, and internal faults.
 DC offset protection
 Matched output transistors
 High power supply voltage for extra headroom at the outputs
 Stable with mismatched, reactive or unusual loads
 Soft start circuit prevents “Brown outs” when amplifier is turned on

In addition, the Model 7.250 includes high quality RCA (gold plated) and XLR input
connectors. The Model 7.250 also includes high-quality, heavy duty speaker output
connectors. A trigger input connector allows the Model 7.250 to be powered on and off
automatically.

In building the Cinema Series power amplifiers significant effort has been focused on
building an amplifier that delivers outstanding mechanical performance, is easy to use,
and has sonic properties that will delight the most demanding customer. It is well
equipped for the most sophisticated and demanding home theaters.

1020 Goodworth Drive

Apex, NC 27539

Phone [phone]

Fax [phone]

www.caryaudio.com

5

INTRODUCTION

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.

Appears on the component to indicate important
operating and maintenance instuctions in the
accompanying literature.

Calls attention to a procedure, practice, condition
or the like that, if not correctly performed or
adhered to, could result in injury or death.

Calls attention to a procedure, practice, condition
or the like that, if not correctly performed or
adhered to, could result in damage or destruction
to part or all of the product.

Calls attention to information that is essential to
highlight.

Note:

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:

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