Cary Audio Design CAD-211M Manuale utente

CAD-211M

OPERATING MANUAL

Note:

Before installing you new CAD-211M, please read this manual carefully. This manual will

inform you of the CAD-211M specifications, proper installation procedures and operation

procedures. Also included in this manual are guidelines on how to properly service and care

for your new CAD-211M.

SPECIFICATIONS

Operating the CAD-211M amplifiers is a simple procedure since each unit is designed for

long term stability in virtually any home operating situation. Therefore, 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 Cary Audio Design

CAD-211M mono block amplifier into operation.

The following definitions are applicable to this manual. These definitions must be

followed explicitly.

WARNING: ELECTRICAL HAZARD! MISUSE OR FAILURE TO FOLLOW

INSTRUCTIONS PROPERLY MAY RESULT IN PERSONAL

INJURY OR DEATH!

CAUTION: No risk of personal injury; however, misuse or failure to follow

instructions may result in damage of equipment.

NOTE: No risk of personal injury or equipment damage; however, misuse or

failure to follow instructions may prevent proper performance

of the equipment.

1.2

Specifications

The following section describes the CAD-211M basic specifications. Specifications are

subject to change without notice or obligation.

POWER OUTPUT: 80W

FEEDBACK: Zero

FREQUENCY

RESPONSE: 20Hz - 20KHz +

NOISE: 80dB Below Rated Output

SENSITIVITY: 2V

TUBE COMPLIMENT: 2 - 845 Output

2 - 300B Driver

2 - 6SN7 Input

OUTPUT IMPEDANCE: 4,8 and 16 ohm

INPUT POWER

REQUIREMENTS: 117V/220V 50 - 60 Hz

POWER CONSUMPTION: 265 watts "OPERATE"

220 watts "STAND BY"

DIMENSIONS: 10"H x 12 1/4"W x 24"D

NET WEIGHT: 90 lbs

SHIPPING WEIGHT: 125 lbs

POWER

TRANSFORMER: 300 percent duty cycle wax impregnated OFC copper

OUTPUT

TRANSFORMER: 200 percent duty cycle wax impregnated OFC copper

CAPACITORS: oil filled

POWER SUPPLY

CAPACITORS: 1500MF, 450V

AC CORD: detachable

WARM-UP TIME: 5 minutes

BREAK-IN PERIOD: 100 hours of music playing time

1.3

Top Panel Features

AC-ON SWITCH: Turns AC power on

STAND-BY SWITCH: Turns high voltage on

1.4

Rear Apron Features

OUTPUT: Three 5-way copper binding posts provide outputs for 4 ohm, 8 ohm and

16 ohm

AC: 3 conductor shielded power cord to AC power mains

INPUTS: One Single-Ended Input via gold plated RCA jack

One Balanced Input via XLR connector (Note: When using Balanced

Input, the toggle switch , located next to the XLR input jack, must

be flipped toward the XLR jack)

FUSE: AC power fuse. Never replace with any other fuse than 5 amp.

SLOW BLOW! 250 VOLT!

Tube fuse. Never replace with any other fuse than 1/2 amp.

FAST BLOW! 250 VOLT!

CAUTION

Use of any other protection

fuse can damage unit.

CAUTION

Never remove/insert

AC line cord when the

unit is "ON"

INSTALLATION

This section describes the unpacking and installation procedures for the CAD-211M

mono-blocks.

2.2

Unpacking

All shipping containers have been specifically designed to protect its contents and special

care has been taken to prevent damage under normal shipping conditions. Mishandling

should be evident upon inspection. If damage is found, take care not to destroy the

evidence. Document any damage with photographs and contact the transport carrier

immediately.

Carefully remove the CAD-211M amplifier from its packing carton and examine closely

for signs of shipping damage. Save all original packing cartons for future storage or after-

sale service.

2.3

Warranty Card

Fill out the enclosed Warranty Registration Card and return to Cary Audio Design within

10 days of the original purchase. Keep your original sales slip and packing cartons for

future reference. Failure to register warranty will limit the warranty to one year.

2.4

Amplifier Placement

In general, the location of the CAD-211M amplifier is not critical. The best placement of

the amplifier is near the speakers with short lengths of speaker cables. Certain precautions

must be taken to avoid radiators or other heating units. Keep the top of the CAD-211M

clear of books, paper or other equipment to protect against overheating.

WARNING

Do not attempt operation without the

bottom plate attached. Contact with

voltage in the

CAD-211M can be fatal!!!

2.5

Power Requirements

The CAD-211M is designed to operate from house current mains. The design voltage is

117 VAC at 50/60Hz. (Foreign units 220 VAC at 50/60 Hz)

2.6

Cables

The speaker cables from the output posts to the speaker system can be any convenient

length required. Select speaker cables of sufficient size to preserve the performance

capabilities of your new CAD-211M. Heavy gauge #16 wire is suitable for distances up

to 10 feet; #12 for 25 feet. Most audio dealers will have speaker cable in stock for this

purpose.

3.1

Operation

Your new CAD-211M is ready for operation after the speaker, interconnect cables and all

the tubes have been installed. See page 8 for tube positions.

3.2

AC-On Power Switch

Simply push the AC-On switch to the "ON" position. Observe that all tubes are lit

(filaments). After 30 seconds, flip the stand-by switch to the "OPERATE" position. The

eye tube will then light.

3.3

Stand-By Switch

This is a most convenient feature on the CAD-211M amplifier. The stand-by switch is

located on the top of the amplifier. In the rear position, the amplifier is ready to operate.

In the front position, only the tube filaments are operating. You may wish to leave your

CAD-211M amps turned on in the stand-by mode 24 hours a day. When you wish to

listen to music, simply flip the stand-by switch to the “REAR” position. Under these

conditions the CAD-211M is always ready for peak performance.

3.4

Break In Period

The tubes, capacitors and output transformer take approximately 100 hours of music

playing time to operate at peak performance. The CAD-211M may seem sterile or thin

sounding right out of the box. After the first couple of hours, you will notice increased

depth and tighter bass. This break-in period defies all engineering theory, but is true with

most audio amplifiers.

SERVICE AND CARE

4.1 Care and Cleaning

The chassis of the CAD-211M may be cleaned with a soft towel and Windex® (or a

similar window cleaner). The frequency of cleaning will be governed by how many hours

the CAD-211M is operated and by operating environmental cleanliness.

4.2 Tube Replacement

If it becomes necessary to replace the tubes in the CAD-211M amplifier, a matched set of

tubes of the same brand should be used. Although tube life varies depending on the nature

and degree of use, under normal operating conditions for home use, the tubes in the CAD-

211M should last several years or more.

4.3 Factory Service

In the design of the CAD-211M, careful consideration was given to keep maintenance

problems to a minimum. However, it is possible that problems may arise which cannot be

cured by tube substitution. At this point, contact our Customer Service Department,

(919) 481-4494, to describe you problem in detail. Do not return the CAD-211M to the

WARNING

Make sure amplifier is

unplugged from AC mains

for any service or

cleaning!

factory without a Return Authorization Number from the Customer Service Department.

Cary Audio Design will not assume responsibility for transit damage or loss if problems

are due to improper packing or lack of insurance.

WARNINGS

Make no attempt to put the CAD-211M in service outside

of the cabinet. Contact with high voltages found in the unit

can be fatal!!!

Completely remove AC Power Cord from the wall and

allow 30 minutes for the high voltage capacitors to

discharge through bleeder resistors before attempting to

change tubes or clean the inside of the amplifier.

CAUTIONS

Never remove/insert AC Plug when the unit is on or the AC

Power Switch is in the “ON” position.

Obstruction of the top portion of the CAD-211M will

result in tubes overheating.

OBSERVE DIRECTIONS IN THIS MANUAL

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