Cary Audio Design Stereo Amplifier SLI 80 User Manual

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SLI-80  
Integrated Stereo Amplifier  
NOTE: Before installing your new component, please read this manual  
carefully as it will inform you of the product specifications, 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.  
 
IMPORTANT SAFETY INSTRUCTIONS  
WARNING: The triangle with the lightning flash symbol  
displayed on the unit advises the user of dangerous un-  
insulated voltage inside the product’s enclosure.  
CAUTION: To reduce the risk of electric shock, do not  
remove the cover. There are no user-serviceable parts  
inside; it is recommended that only qualified personnel  
service this component.  
ALERT: The triangle with the exclamation point symbol on the component suggests that the owner refer to  
important operating and maintenance instructions in the owner’s manual.  
1. OWNER’S MANUAL: Before powering up the equipment, read all safety and operating instructions and follow  
them as instructed. Retain the safety and operating instructions for future reference.  
2. ATTACHMENTS: Use only those attachments recommended by the unit manufacturer, as others may cause  
hazards.  
3. ACCESSORIES: Do not place the unit on an unstable cart, stand, tripod, bracket, or table. The unit may fall,  
causing injury to a person or damage to the unit. Mount the unit according to the manufacturer’s instructions with  
the suggested mounting accessory.  
4. WALL OR CEILING MOUNTING: Mount the unit to a wall or ceiling only in the manner recommended by the  
manufacturer.  
5. WATER AND MOISTURE: Do not use the unit near water (for example, near a swimming pool, bath tub, wash  
bowl, kitchen sink, or laundry tub) or in a damp environment (like a basement or outside in the rain).  
6. OBJECT AND LIQUID ENTRY: Do not push objects of any kind into the unit through openings as they could touch  
dangerous voltage points and short-out parts, possibly resulting in a fire or electric shock. Avoid spilling liquid of any  
kind on the unit. 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 Design for further instructions.  
7. HEAT: Position the unit away from heat sources such as radiators, heat registers, stoves, or other units  
(including amplifiers) that produce heat.  
8. VENTILATION: Slots and openings in the cabinet create ventilation to protect the component from overheating.  
These openings on the top and bottom panels must remain unobstructed. Allow at least 6 inches (16cm) of clearance  
above the unit and an opening behind the unit for airflow. Do not place the unit on a  
bed, sofa, rug, built-in bookcase, or rack without adequate ventilation.  
9. GROUNDING OR POLARIZATION: As a safety feature, the unit may be equipped with a polarized alternating  
current line plug in which one blade is wider than the other. This plug will fit into the power outlet only one way. If  
you cannot insert the plug fully into the outlet, try reversing the plug. If the plug still will not fit, contact a licensed  
electrician to update your obsolete outlet. Do not defeat the safety purpose of the polarized plug.  
10. POWER SOURCES: Operate the unit only from the power source indicated on the marking label. If you are  
unsure of the type of power supplied to your home, consult your unit dealer or local power company.  
11. POWER CORD PROTECTION: Arrange power supply cords so that they do not suffer from foot traffic or pinching  
by items placed on or against them. Pay close attention to cords where plug enter the AC outlet and where they exit  
from the unit.  
12. LIGHTNING: For added protection during a lightning storm or when is the component is idle for long periods of  
time, unplug the unit from the wall outlet and disconnect the antenna or cable system. This will help protect the  
unit from lightning and power line surge damage.  
13. POWER LINES: Do not locate an outside antenna system in the vicinity of overhead power lines or other electric  
light or power circuits. When installing an outside antenna system, take extreme care to avoid touching the power  
lines or circuits; contact with them could be fatal.  
14. OVERLOADING: Do not overload wall outlets, extension cords, or integral convenience receptacles as this  
increases the risk of fire or electric shock  
15. REPLACEMENT PARTS: When replacement parts are required, be sure the service technician has used replacement  
parts specified by the manufacturer or those having the same characteristics as the original parts. Unauthorized  
substitutions may result in fire, electric shock or other hazards.  
16. SAFETY CHECK: Upon completion of any service or repairs to the unit, ask the service technician to perform safety  
checks to ensure the unit is in proper operating condition.  
2
 
IMPORTANT SAFETY INSTRUCTIONS  
17. IMPORTANT SAFETY NOTE:  
Before connecting a new product such as the CD 303T to your audio or home theater system, turn off all other  
equipment (preferably unplugging them from the AC power source). Many audio components feature automatic turn-  
on circuits that may activate during an installation, potentially causing damage to electronic components and/or  
speakers. This type of damage is not covered by product warranties, and Cary Audio specifically disclaims responsibility  
for any such damage.  
Power Cord: The removable power cord provided with your player was specifically designed for use  
with this product, but other AC cords may be used. 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 the unit does not  
power up, contact an authorized service representative  
Wiring: Cables running inside walls should have the appropriate markings to indicate compliance 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, a licensed electrician, or low-voltage contractor.  
18. RECORDING COPYRIGHT: Recording of copyrighted material for other than personal use is illegal without  
permission of the copyright holder.  
19. 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.  
20. FCC INFORMATION FOR USER:  
CAUTION: Any changes or modifications not expressly approved by Cary  
Audio Design 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 it 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.  
21. 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 in order to provide  
protection against built-up static charges and voltage surges. Article 810  
of the National Electrical Code, ANSI/NFPA 70 (in Canada, Part 1 of the  
Canadian Electrical Code) provides information regarding 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.  
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.  
3
 
INTRODUCTION  
Congratulations!  
You have purchased one of the most exotic integrated stereo audio amplifiers available. Within its power  
range, the SLI 80 displays the operating characteristics of a true "high-end" amplifier. Careful design,  
parts selection and proper circuit topologies contribute to incredible reliability and enjoyment.  
For the technically minded, a review of the circuit in your new SLI 80 is in order. Your new SLI 80  
integrated stereo amplifier operates in a class A/B-1 mode utilizing a negative fixed bias supply. The KT-  
88/6550 output tubes are configured in push-pull. The triode mode provides 40 watts/channel of output  
audio power and switching to the ultra-linear mode yields 80 watts/channel of output power. In the  
opinion of the designer the triode mode sounds the best.  
The output transformers in your SLI 80 are the most important component in the amplifier and have  
been specifically designed by Cary Audio Design for use in the SLI 80. Negative feedback is derived from  
a separate winding on the output transformer. This feedback winding and circuitry is used to reduce the  
noise floor and improve the speaker damping characteristics. Only 4 dB of feedback is utilized. The phase  
inverter is a self-balancing split load configuration utilizing the 6SN7 octal base dual triode. The  
preamplifier circuit is a resistive coupled Class A triode voltage amplification stage. The power supply in  
the SLI 80 features a 200% duty cycle EI laminate power transformer.  
The high voltage section features full wave vacuum tube (CV-729/5U4) rectification (not cheap voltage  
doublers used in many amplifiers) to a PI-L capacitive network. The input signal from the volume control  
is direct coupled (DC) to the first grid of the 6922. There are no coupling capacitors in line with the input  
signal on the SLI 80. The sub-woofer output is derived from a voltage divider network on the input stage  
of the SLI 80.  
A great deal of attention during design of your new SLI 80 was concentrated on the "overload recovery"  
ability of the amplifier. The ability of an amplifier to instantly recover from clipping is much more  
important than is commonly believed. In the power war of amplifier manufactures the mentality is  
focused on high and then even higher power output to solve the clipping problem. When in reality the  
most critical aspect is how fast a recovery an amplifier can achieve after overload. Most of the music  
being listened to in an average listening room is only requiring about 3 watts of power. It is on the  
transients of loud low frequency program material that tremendous signal voltages will appear at the  
input of the amplifier. It is in this situation that the overload recovery ability of an amplifier is of critical  
concern. The SLI 80 will overload symmetrically at any frequency in the audio band-pass. The SLI 80 will  
also yield faithful reproduction of extremely low frequencies at full output levels. Power transformer,  
power supply regulation and output transformer design and careful shaping of the overall frequency  
response curve all play a very important part in the ability of the SLI 80 to recover quickly when  
overloaded. The high voltage rail will fluctuate no more than a volt between soft and loud passages.  
Another technical feature of your new SLI 80, aside from how compact and gorgeous it looks, is the  
delightful, sensual beauty of the music it recreates. The first thing that will strike you about the SLI 80  
integrated amplifier is the incredible transparency and resolution of detail in the music. The SLI 80's  
sensual nature is best revealed in the sense of life it displays in female vocalists.  
The SLI 80 integrated presents music with such presence and directness, you'll be drawn into the music  
hour after musically satisfying hour. This is the result of circuit techniques, which eliminate any  
discernible crossover notch at low levels, and also contributes to the freedom from listening fatigue. The  
SLI 80 will draw you in even further as you realize how lucid and utterly uncolored neutrality reveals  
delicate nuances in the sound stage.  
Enjoy the music and of course please read this complete manual for a complete understanding of trouble  
free operation.  
4
 
SPECIFICATIONS  
This section describes the basic specifications of the SLI 80 at the time of printing. Specifications are  
subject to change without notice or obligation. When the following cautionary terms are used in this  
manual, these definitions apply:  
WARNING  
Electrical hazard! Misuse or failure to follow instructions properly may  
result in personal injury or death!  
CAUTION  
No risk or personal injury; however, misuse or failure to follow instructions  
may result in damage to equipment.  
NOTE  
No risk of personal injury or equipment damage; however, misuse or failure  
to follow instructions may prevent proper performance of the equipment.  
............................................................................................................................................................  
CIRCUIT TYPE Push-Pull Ultra-linear Amplification in Pure Class A/B-1  
............................................................................................................................................................  
POWER OUTPUT  
40 watts - Triode  
80 watts Ultra-linear  
............................................................................................................................................................  
INPUT SENSITIVITY .45 volts for full output  
............................................................................................................................................................  
INPUT IMPEDANCE 100,000 ohms  
............................................................................................................................................................  
NOISE AND HUM 82db below rated output  
............................................................................................................................................................  
FREQUENCY RESPONSE 19Hz to 23Khz +/- .5db at full power output  
............................................................................................................................................................  
TUBES  
2 - 6922 Input Buffer Preamp  
2 - 6SN7 Pre-Driver/Phase Inverter  
4 KT88 Output tubes (or 6550, EL34, 6CA7, 6L6, KT66, KT77,  
6V6, KT90)  
2 - CV729/5U4 Rectifiers  
............................................................................................................................................................  
POWER TRANSFORMERS 1 - EI laminated, 200% duty cycle  
............................................................................................................................................................  
OUTPUT TRANSFORMERS 2 - EI laminated, Silicon Impregnated  
............................................................................................................................................................  
RESISTORS 1% metal film  
............................................................................................................................................................  
CAPACITORS Polypropylene  
............................................................................................................................................................  
POWER SUPPLY CAPACITORS  
2 - 1200 F @ 450 VDC  
6 - 10 FD @ 400 VDC film & foil  
............................................................................................................................................................  
AC CORD 3 conductor shielded, Detachable  
............................................................................................................................................................  
AC POWER REQUIREMENTS 117/234 volts AC @ 50/60Hz  
............................................................................................................................................................  
POWER CONSUMPTION  
166 watts - Operation  
83 watts - Standby  
5
 
SPECIFICATIONS  
............................................................................................................................................................  
WARM-UP TIME  
............................................................................................................................................................  
BREAK-IN PERIOD 100 hours of music playing time  
............................................................................................................................................................  
3 minutes  
FINISH  
Textured black steel chassis with PowderCoat semi-gloss black  
finish. Optional DELUXE finishes available. (additional charge)  
Front Panel is machined black anodized aluminum  
............................................................................................................................................................  
DIMENSIONS 7" H x 17" W x 16" D  
............................................................................................................................................................  
WEIGHT 42 lbs.  
............................................................................................................................................................  
6
 
FEATURES  
Front Panel  
............................................................................................................................................................  
POWER OFF SWITCH  
Rotary switch turns on AC mains and high voltage on "in  
operate" position  
............................................................................................................................................................  
LED Indicates high voltage on  
............................................................................................................................................................  
VOLUME Dual precision potentiometer controlling volume of both channels  
............................................................................................................................................................  
BALANCE  
Dual precision potentiometer to balance between left and right  
channel  
............................................................................................................................................................  
SELECTOR Selection of line inputs for listening. CD, AUX 1, & AUX 2  
............................................................................................................................................................  
HEADPHONE JACK Jack for headphones  
............................................................................................................................................................  
OUTPUT/HEADPHONE SWITCH To switch between headphones and main out  
............................................................................................................................................................  
Rear Apron  
............................................................................................................................................................  
INPUTS CD, AUX1, & AUX 2  
............................................................................................................................................................  
4/8 OHM SWITCH Toggle switch for 4 and 8 ohm taps  
............................................................................................................................................................  
SUB-WOOFER OUTPUT Voltage Divider Linear Network for Driving Active Sub-Woofers  
............................................................................................................................................................  
Signal input connection via shielded interconnect cable  
SPEAKER OUTPUT  
5-way binding posts provide output to speakers. Red = +, Black  
= -  
............................................................................................................................................................  
AC 3- conductor shielded power detachable cord to AC power mains  
............................................................................................................................................................  
AC FUSE  
This is an overcurrent protection fuse for the SLI 80. Never  
replace with any other fuse than 3 AMP SLOW BLOW! 250 VOLT!  
(2 AMP SLOW BLOW ON 220 VAC OPERATION)  
............................................................................................................................................................  
TUBE FUSE  
This is a protection fuse for the output tubes. Never replace with  
any other fuse than a .5 amp fast blow! 250 volt  
............................................................................................................................................................  
CAUTION  
EQUIPMENT DAMAGE MAY OCCUR WITH IMPROPER FUSES.  
NEVER REMOVE / INSERT AC LINE CORD WHEN THE UNIT IS ON.  
WARNING  
MAKE NO ATTEMPT TO PUT THE SLI 80 AMPLIFIER IN SERVICE WITHOUT  
THE BOTTOM PLATE ATTACHED - CONTACT WITH VOLTAGE IN THE SLI 80  
CAN BE FATAL.  
7
 
INSTALLATION  
This section describes the unpacking and installation procedures for your new component.  
Unpacking  
All Cary Audio Design shipping containers have been specially designed to protect their contents and  
special care has been taken to prevent damage under normal shipping conditions. Mishandling should be  
evident upon inspection of the shipping container. If shipping damage is found after visual inspection,  
take care not to destroy the evidence. If necessary, document the damage with photographs and contact  
the transport carrier immediately.  
Carefully remove your new component from its packing carton and examine it closely for signs of  
shipping damage. We strongly recommend saving all original packing cartons to protect your amplifier  
from damage should you wish to store it or ship it for after-sales service.  
Warranty Card  
IN THE USA: If you are the original purchaser of a new unit from an AUTHORIZED CARY AUDIO  
DESIGN DEALER, please 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 at the end of this manual for details. Please be certain to  
keep a copy of the original sales receipt from your AUTHORIZED CARY AUDIO DESIGN DEALER to  
validate the warranty if ever needed. The warranty is for the original purchaser only and does not  
transfer to any subsequent owner.  
OUTSIDE THE USA: Your local Authorized Cary Audio Design Distributor will make his own warranty  
policy for your country. Please check with them for the terms of warranty for your new amplifier.  
Placement  
In general, the location of your new SLI 80 is not critical. Certain precautions must be taken to ensure  
optimum performance. Avoid extremely hot locations such as near radiators or other heating units. Keep  
the top of the SLI 80 clear of books, paper or other equipment to protect against overheating! DO NOT  
place your SLI 80 in a closed bookcase - overheating will damage the amplifier! Allow 8 to 10 inches  
above the unit for proper ventilation.  
Power Requirements  
The SLI 80 is designed to operate from house current mains. The design voltage is 117 VAC at 50/60Hz.  
(Foreign units 234 VAC at 50/60Hz.)  
Cables  
The speaker cables from the output posts of the SLI 80 to the speaker system can be any convenient  
length your set-up requires. Select speaker cables of sufficient size to preserve the outstanding  
performance capabilities of your SLI 80. Heavy gauge #16 wire is suitable for distances up to 10 feet;  
#12 for 25 feet. Most audio dealers will have proper speaker cable in stock for this purpose.  
8
 
OPERATION  
Signal input connection is made via the input jacks on the rear of the SLI 80 located on the rear panel.  
The interconnect cables from the output of the CD player, tuner, etc. can be any convenient length your  
set-up requires. The choice of a high quality interconnect cable is important. Once again, your audio  
dealer will have the proper cables in stock for this purpose.  
Your new SLI 80 is ready for operation after the speaker and interconnect cables have been installed.  
(Refer to the tube placement sheet in Charts and Drawings for proper installation)  
4/8 OHM Switch  
Select the proper impedance that is called for in you speaker specification. Make sure that both left and  
right channels are the same. An improper setting may not yield peak performance. Listen carefully to  
each setting and choose the setting that matches your speakers best.  
AC Off/Operate Switch  
Simply turn the rotary switch to the "operate" position. Observe that all 10 tubes are lit (filaments).  
Headphone/Output Switch  
Make this selection based on which output you want to use. If you are using headphones it would be best  
to have the headphones installed before switching to headphones. If the music is playing loud and you  
switch to headphones without headphones in place it may damage the unit.  
Break-In Period  
The tubes, capacitors and output transformers take approximately 100 hours of music playing to fully  
settle in for peak performance. The SLI 80 will sound good from the start and 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 high performance vacuum tube audio amplifiers.  
Bias Measurement  
The bias is factory preset. It is a good idea to measure it during the initial setup to make sure it is set to  
the specifications provided at the end of this manual. The AC voltage may be different from one area to  
the next. Follow the instructions provided. You will need a meter that allows you to read up to 100mA.  
WARNING  
MAKE SURE AMPLIFIER IS UNPLUGGED FROM AC MAINS BEFORE  
SERVICING.  
9
 
SERVICE AND CARE  
The chassis may be cleaned with a soft towel and Windex® or a similar window cleaner. Spray it on the  
cleaning cloth to moisten it, not on the component. Do not use solvents or harsh chemicals to clean the  
preamplifier. They may remove the labels from the chassis. The frequency and need of cleaning will be  
governed by operating environmental conditions. Avoid letting the component become dusty or wet. A  
‘feather duster’ type cleaner will also work well for cleaning the component.  
Tube Replacement  
If it becomes necessary to replace the tubes in the SLI 80 amplifier, a matched quartet set of output  
tubes of the same brand should be used. A new tube kit is available from Cary Audio Design. You should  
get a few years or more from the output tubes with everyday usage and many, many years of use from  
the 6922 & 6SN7 input tubes.  
Factory Service  
Careful consideration has been given to the design of this product to keep maintenance problems to a  
minimum. If the problem is not easily solved, we suggest that you contact our Customer Service  
Department by phone at (919) 355-0010, 15 pm Eastern Standard Time, to describe your problem in  
detail. DO NOT return the component to the factory without a Return Authorization Number (RA) from  
the Customer Service Department.  
Cary Audio Design assumes no responsibility if the transportation company refuses to pay a damage  
claim due to your improper packing or lack of insurance should the unit be lost in shipment. We strongly  
suggest using the original packing cartons for shipping any Cary Audio Design component.  
Non-Warranty Repairs  
Cary Audio Design will provide repair service for its products charging on a time and expense basis. At  
this time, the standard non warranty service bench fee is $125 with all parts used for repair charged  
extra. This may change with time and is not a quote for service. Please call us at 919-355-0010 for more  
information about out of warranty service and repair fees.  
WARNINGS  
MAKE NO ATTEMPT TO PUT THE SLI 80 IN SERVICE WITH THE BOTTOM  
PLATE REMOVED. CONTACT WITH HIGH VOLTAGES FOUND IN THE UNIT  
CAN BE FATAL. COMPLETELY REMOVE AC POWER PLUG 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 SLI 80 WILL RESULT IN TUBES OVERHEATING AND  
DAMAGE TO THE AMPLIFIER  
10  
 
TROUBLESHOOTING GUIDE  
SYMPTOM  
CAUSE  
REMEDY  
Hum or "Buzzing" through  
speakers  
Ground Loop  
Install 2-pin adapter on  
A.C. cord to float the  
Ground  
Intermittent or poor connection Replace interconnect  
of interconnect ground  
"Popping or Spitting" noise Noisy tube  
If noise is in one channel,  
through the speaker swap one  
section of tubes at a time until  
the noise swaps channels.  
Replace noisy tube.  
Check bias of output tubes. If  
high or fluctuating rapidly,  
replace output tube.  
(See Bias Adjustment, p 11)  
AC fuse blows  
Line voltage surge  
Replace fuse  
CV729 shorted  
Replace CV729/5U4  
Replace tube  
Tube fuse blows  
Shorted output tube  
11  
 
CHARTS AND DRAWINGS  
Bias Adjustment  
Set bias for both sides of the amplifier to 75mA.  
Insert meter plug into bias jack.  
Adjust for 7mA reading on DC current meter.  
Re-adjust to 75mA after SLI 80 is warmed up for 10 minutes.  
Remove plug and enjoy the music!  
Note: Bias is factory preset; Bias should be reset when installing replacement KT-88 / 6550 tubes.  
Bias Meter Jack  
Bias Adjust  
12  
 
CHARTS AND DRAWINGS  
Tube Placement Chart  
4/8 OHM Switch Settings  
Rear of Amplifier  
13  
 
LIMITED WARRANTY  
Cary Audio Warrants to the original United States purchaser for use in the United States  
the Following Cary Audio Products for the Periods Indicated:  
1. Power Amplifiers, Integrated Amplifiers, Surround Sound Processors, and Preamplifiers have  
a three (3) year parts and labor warranty from the date of the original purchase from Cary  
Audio.  
2. CD or SACD players, DVD players, or Music Servers have an eighteen (18) month parts and  
labor warranty from the date of the original purchase from Cary Audio.  
3. Vacuum tubes, if any are used in the component, are offered a 90-day exchange policy  
against defects with the exception of the CAVT 300B vacuum tube that has a one (1) year  
exchange policy from the date of the original purchase from Cary Audio.  
What is Covered and What is Not Covered  
Except as specified below, this warranty covers parts and labor to correct all defects in materials and  
workmanship. The following are not covered by the warranty:  
1. Damage, deterioration, malfunction or failure to meet performance specifications resulting  
from:  
a. Accident, acts of nature, misuse, abuse, neglect or unauthorized product  
modifications  
b. Improper installation, removal or maintenance, or failure to follow instructions  
supplied with the product.  
c. Repair or attempted repair by anyone not authorized by Cary Audio to repair the  
product.  
d. Any shipment of the product (claims must be presented to the carrier).  
e. Any cause other than a product defect.  
2. Cleaning, initial set-up, check-ups with no defects found, or charges incurred for installation,  
removal or reinstallation of the product.  
3. Any product, on which the serial number has been defaced, modified or removed.  
4. Batteries.  
5. Accessories, including but not limited to, batteries, cables, mounting hardware and brackets,  
cleaning accessories, antenna and detachable power cords.  
6. Warranty is void if purchase was made from anyone other than an authorized Cary Audio  
dealer.  
Who May Enforce the Warranty?  
This warranty extends to products purchased directly from Cary Audio or an authorized Cary Audio  
dealer. Purchasers should inquire of the dealer regarding the nature and extent of the dealer’s  
warranty, if any.  
To obtain such warranty service, the original purchaser must complete and send in the Warranty  
Registration Card within 15 days of purchase.  
14  
 
LIMITED WARRANTY  
What Will We Pay For?  
We will pay for all labor and material expenses for items covered by the warranty. Payment of  
shipping charges is discussed in the next section of this warranty.  
How You Can Get Service?  
In the event that the owner needs to return the unit to Cary Audio for service or repair of a possible  
defect, he must follow the following steps:  
1. Contact Cary Audio at 919-355-0010 to obtain a Return Merchandise Authorization (RMA)  
number prior to shipping; include this number with the package  
2. Submit a copy of the original sales receipt; blank receipts will not validate the limited  
warranty for service by Cary Audio. The original sales receipt must contain the following  
information:  
a. The authorized Cary Audio dealer’s name  
b. The date of purchase  
c. The unit’s sales price  
d. The buyer’s name and address  
e. Describe in detail the problem.  
f. Note the unit’s model number and serial number.  
3. Deliver by either of these methods:  
a. With all freight and insurance charges prepaid and in its original packing container  
or equivalent, ship the component to Cary Audio, 1020 Goodworth Drive Apex, NC  
27539.  
b. Hand-deliver the product to Cary Audio (address noted above) or the nearest  
authorized service facility.  
Limitation of Implied Warranties  
All implied warranties, including warranties of merchantability and fitness for particular purchase, are  
limited in duration to the length of this warranty.  
Exclusion of Damages  
Cary Audio’s liability for any defective product is limited to repair or replacement of the product at  
Cary Audio’s option. Cary Audio shall not be liable for damage to other products caused by any  
defects in Cary Audio products, damages based upon inconvenience or loss of use of the product, or  
any other damages, whether incidental, consequential, or otherwise.  
15  
 
LIMITED WARRANTY  
How State Law Relates to the Warranty  
Some states do not allow limitations on how long an implied warranty lasts and/or do not allow the  
exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions  
may not apply to you.  
This warranty gives you specific legal rights, and you may also have other rights which vary from  
state to state.  
International Purchasers (Export Markets)  
Cary Audio warrants its merchandise to purchasers within the United States exclusively for use  
within the United States. It provides no other warranties, expressed or implied. If you are living  
outside of the United States, please consult your local dealer or distributor to determine the details  
of your local warranty.  
16  
 
CARY AUDIO DESIGN  
1020 Goodworth Drive, Apex, NC 27539  
phone 919-355-0010  
fax 919-355-0013  
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