Cary Audio Design CAD 120S Stereo Amplifier User Manual
Contents
1. UND mn ine ee AC Power Requirements 117 VAC 50 60 Hz 234 VAC 50 60 Hz Warm Up Time 3 minutes Break In Time 100 hours of playing time Finish Jaguar Anthracite black with clear coat finish silver anodized aluminum faceplate standard black optional Dimensions 8 Hx 17 W x 14 D CONTROLS AND DISPLAYS FRONT PANEL CAD 1205 Amplifier CARY TREE LEFT CHANNEL Baas RIGHT CHANHEL BIAS ULTRALINEAR 1 POWER Press once to turn the power e Press again to turn the power OFF 2 LEFT CHANNEL BIAS e Indicates a proper DC current of between 130 to 150 ma 3 RIGHT CHANNEL BIAS e Indicates a proper DC current of between 130 to 150 ma 4 MODE e Press this button to change between Triode and Ultralinear modes TOP PANEL The following illustration shows the tube placements on the CAD 1205 OUTPUT OUTPUT OUTPUT OUTPUT CAD 1208 120 Warn Vacuum Tube Stereo Anrplifter CONTROLS AND DISPLAYS REAR PANEL CAD 1205 Amplifier E 1 RIGHT CHANNEL OUTPUT NEGATIVE LEAD 2 RIGHT CHANNEL OUTPUT POSITIVE LEAD 3 RIGHT CHANNEL INPUT XLR INPUT 4 RIGHT CHANNEL INPUT RCA INPUT 5 TUBE FUSE Y AMP FAST BLOW RIGHT CHANNEL 6 BIAS ADJ UST POTENTIOMETER RIGHT CHANNEL 130 150 ma 7 AC POWER MAIN FUSE 4 AMP SLOW BLOW 8 TUBE FUSE Y AMP FAST BLOW LEFT CHANNEL 9 BIAS ADJUSTMENT POTENTI OMETER LEFT CHAN2. 22 23 24 25 LI GHTNI NG 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 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 OVERLOADI NG Do not overload wall outlets extension cords or integral convenience receptacles as this can result in a risk of fire or electric shock OBJ ECT AND LI QUI D 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 SERVI CI NG 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 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 su
3. CAD 1205 plugged into the wall AC outlet this button will engage the soft start system and bring the amplifier to the full operate mode You will notice that the two DC current meters on the front panel will light up blue The vacuum tubes will light as well To power down turn off simply push the power button once again and the soft start system will remove the main AC power from the power supply in the CAD 120S BIAS MEASUREMENT Setting the operating bias levels on the CAD 120S is a rather simple matter thanks to the built in front panel DC current meters These two meters indicate the DC current being drawn by each channel The meter to the left reflects the operating current for the left channel The corresponding meter to the right indicates the operating bias level of the right channel From the factory the bias has been set to approximately 140 ma DC current on each channel This read out will vary with different AC wall voltages On the rear panel of the CAD 1205 Is a bias adjustment potentiometer for each channel This 15 a screwdriver slotted shaft control After the amplifier has been powered up for a few minutes observe the meter readings The proper reading should be 140 ma plus or minus 10 ma To make the bias adjustment insert a flat bladed screwdriver into the rear mounted bias adjustment potentiometer and turn clockwise to raise the bias or counter clockwise to lower the bias reading There is some interaction between channels Ad
4. 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 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 RECORDI NG COPYRI GHT Recording of copyrighted material for other than personal use is illegal without permission of the copyright holder 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 IMPORTANT SAFETY INSTRUCTIONS 26 FCC INFORMATION FOR USER 21 CAUTION CAUTION ANY changes or modifications not expressly approved by the party responsible OF ELECTRIC SHOCK for compliance could void the user s authorit
5. CARY Audio Design 0 0 0 0 0 0 CAD 1205 Stereo Power Amplifier NOTE Before installing your new CAD 1205 power amplifier 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 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O 0 0 TABLE OF CONTENTS Important Safety Instructions 2 Welcome o TOU MN 5 reac leo aa D EO 6 Unpacking STAM sas 7 Specifications S E 8 Controls amp Displays FORME GING RD SA O RD Sa 9 e UU TE 9 Rear Panel ES bcn uma Sa mud accion 10 Operation Speaker Binding POSES vic Scb aus paa o Esas UN 11 Triode or Ultra Linear Mode Switch occcccccccnccnnccconncncnocononnnononnnnnncnnnannns 11 Power ON OFF SWIECI Susana 11 Bias Measurement and Adjustment eee 11 BC o A sm Dad a MU
6. EIU 12 TUDO T ETS 12 Service and Care Care ana Cleaning rt 13 o af Da 13 Non Warcanty ur tenet E DL dp Sa sds a ute pt ode teur 13 United States Limited Warranty 14 IMPORTANT SAFETY INSTRUCTIONS CAUTION N CAUTI ON 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 WARNI NG 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 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 u
7. NEL 130 150 ma 10 LEFT CHANNEL I NPUT RCAINPUT 11 LEFT CHANNEL I NPUT XLR I NPUT 12 LEFT CHANNEL OUTPUT POSITIVE LEAD 13 LEFT CHANNEL OUTPUT NEGATIVE LEAD 10 OPERATION Your new CAD 1205 power amplifier is ready for operation after the speaker interconnect cables and the vacuum tubes have been installed into their proper sockets Refer to the labeling on the chassis for placement and proper tube installation SPEAKER BINDING POSTS The CAD 1205 will drive loudspeaker loads from as low as 2 ohms to a high of 16 ohms without any adjustment Please remember to keep the proper phase on each channel when connecting the loudspeaker cables Red is positive and black is the negative lead TRI ODE OR ULTRA LI NEAR MODE SWITCHES The push button located on the lower right side of the front panel will toggle from triode to ultra linear modes There is a blue LED indicator lamp located above the switch When this blue LED is illuminated the CAD 120S is in the triode mode Push the button again and the red LED will appear The CAD 1205 15 now in the ultra linear mode This mode selector system has a memory feature The amplifier can be powered down turned off and the amplifier operating mode will remain in the last position The absolute default mode Is triode if the amplifier is unplugged from the AC wall outlet POWER OFF SWITCH The front panel push button located to the lower left is a power on power off selector With the
8. bstitutions may result in fire electric shock or other hazards 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 WALL OR CEI LI NG MOUNTI NG The unit should be mounted to a wall or ceiling only as recommended by the manufacturer HEAT The unit should be situated away from heat sources such as radiators heat registers stoves or other units including amplifiers that produce heat I MPORTANT 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 n come on contact your authorized service representative Wiring Cables
9. ccessories that do not conform to the quality and the specifications of the original parts 2 Misuse abuse neglect or improper installation 3 Accidental or incidental damage WARRANTY DISCLAIMER Except for the express warranties stated herein Cary Audio Design disclaims all other warranties including without limitation all implied warranties of merchantability and fitness for a particular purpose The foregoing constitutes Cary Audio Design s entire obligation with respect to this product and the original purchaser and any user or owner shall have no other claim for incidental or consequential damages Some States do not allow the exclusion or limitation of incidental or consequential damages so the above limitation and exclusion may not apply to you This warranty gives legal rights and you may also have other rights which vary from state to state EXCLUSI VE REMEDY Notwithstanding the foregoing the purchaser s exclusive remedy for any breach of warranty express or implied is limited to the repair or replacement of the defective unit or the refund of the purchase price at the option of Cary Audio Design Under no circumstances 15 Cary Audio Design liable for incidental or consequential damages Any implied warranties imposed by law terminate one 1 year from the date of purchase I NTERNATI ONAL PURCHASERS Export markets Cary Audio Design warrants its merchandise to purchasers within the United States exclusively for use with
10. combination thought this idea had merit and began percolating the design in my head In November of 2006 three months after the initial prototype had the cosmetic package complete needed to have this new baby on display at the January 2007 CES Show During the CES Show it became evident we had a winner of a product Countless people wanted to listen to the CAD 120S The only problem was there was nothing inside All the circuitry was in my head My only response to the question of How does it sound was You re going to love it am once again an excited design boy proudly displaying the CAD 120S which went into full production in May 2007 at our toy shop in Apex North Carolina can now answer the Enjoy the music in your home with your CAD 120S and thank you for your support God Bless you and your family Dennis and the Cary Audio Team 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 WELCOME PRODUCT FEATURES The stereo vacuum tube power amplifier has a great history at Cary Audio Design The previous generation Rocket 88 R and the V 12R power amplifiers ga
11. dio You should get years of service from the rugged KT 88 output tubes The input and driver 6SN7 tubes can last even longer Other output tubes may be used in the CAD 1205 power amplifier 6L6 6CA7 KT 66 6550 KT 90 KT 99 or EL 34 tubes are all acceptable for use in the output stage of the CAD 1205 Use the same current setting for any of these tubes as described in the bias set up 12 SERVI CE AND CARE CARE AND CLEANING The cabinet housing and front panel of the CAD 1205 may be cleaned with a soft cloth and Windex window cleaner The frequency of cleaning will be governed by how many hours the CAD 1205 is operated and by the cleanliness of the operating environment FACTORY SERVICE Careful consideration has been given to the design of your CAD 1205 to keep maintenance problems to a minimum Any problems or requests for service should be referred to our Customer Service Department at 919 355 0010 DO NOT return the CAD 1205 to the factory without a Return Authorization number RA from the Customer Service Department Cary Audio Design will assume no responsibility if the shipping company refuses to pay for damage due to your improper packing or lack of insurance should the unit be lost or damaged in shipment Please retain and always use the original shipping carton for shipping the player NON WARRANTY REPAIRS Cary Audio Design will provide repair service for its products charging on a time and expense basis The standard
12. in the United States of America It provides no other warranties expressed or implied If you are living outside the USA please consult with your local dealer or distributor to determine the details of your local warranty 14 CARY AUDIO DESIGN 1020 Goodworth Drive Apex NC 27539 phone 919 355 0010 fax 919 355 0013 WWw caryaudio com 0 00 00 0 00 0 000 00 00 00 00 00 0 000 0 00 000 00 000 00 00 00 00 0 00 00 00 0 00 00 00 0 0 0 00 00 0 0 0
13. just the right and left channel bias a few times until you have an equal reading plus or minus a few ma on each channel The bias reading level is not critical in respect to a range of a low reading of 125 ma to a high reading of 170 ma The preferred reading should be approximately 140 ma plus or minus 10 ma The DC bias current value will fluctuate with varying in house AC wall voltage As air conditioning systems 11 OPERATION cycle and power loads in the neighborhood change the bias reading will fluctuate a bit This 15 normal and therefore not critical Another word about the meter readings The louder you play the CAD 1205 the more current it will draw Playing loud especially in the ultra linear mode will peg the meters at 200 ma This is normal and there is a protection circuit built into the metering circuit to prevent damage to the analog meters Pegging the meters is fun BREAK IN PERIOD The tubes capacitors and output transformers take approximately 100 hours use to settle in for peak performance The CAD 1205 will sound good right out of the box but it will improve within a short time After the first 50 100 hours you will notice increased depth and tighter bass This break in period 15 true with quality vacuum tube audio amplifiers TUBE REPLACEMENT If it becomes necessary to replace the tubes in the amplifier a matched set of output tubes of the same name brand should be used A new tube kit is available from Cary Au
14. nal purchaser must 1 Complete and send in the warranty Registration Card within 15 days of purchase 2 If claiming service the owner must send a fully filled in copy of the original sales receipt along with any unit sent in for service showing the AUTHORIZED CARY AUDIO DESIGN DEALER S name the new selling price the buyer s name e mail or phone number and address on the receipt Blank receipts will NOT validate the limited warranty for service 3 Notify Cary Audio Design as soon as possible after the discovery of a possible defect and submit the following information to determine eligibility for warranty a The model number and serial number b A fully filled in copy of the original sales receipt showing the original selling price purchasers name and address filled in by an AUTHORIZED CARY AUDIO DESIGN DEALER with the original date of purchase shown on the form c a detailed description of the problem 4 Deliver the product to Cary Audio Design or the nearest authorized service facility or ship with all freight and insurance charges prepaid in its original packing container or equivalent to Cary Audio Correct maintenance repair and use are important to obtain performance from this product Therefore please carefully read the Operating Manual This warranty does not apply to any defect that Cary Audio Design in its sole discretion determines is due to 1 Improper maintenance or repair including the installation of parts or a
15. non warranty service bench fee is 125 plus charges for parts and materials This may change 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 CAUTION Never remove or insert the back panel AC plug when the unit is on or the ac cord is plugged into the wall 13 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 Vacuum tubes if any are used in the component are offered a 90 day from purchase date exchange policy against defects with the exception of the CAVT 300B vacuum tube which has a 1 one year from purchase date exchange policy Any digital drive design whether a Cary Audio Design CD or SACD player or a Cary Cinema DVD player has a limited one year parts and labor warranty against defects in manufacture This 15 a limited warrant for the original purchaser only and does not transfer to any subsequent owner During the limited warranty period Cary Audio Design or an authorized Cary Audio Design service facility will provide free of charge both parts and labor necessary to correct any defects in material or workmanship To obtain such warranty service the origi
16. painted to match the chassis The backlit front panel meters indicate the bias setting for each channel and visually indicate proper operation for the CAD 120S amplifier WELCOME UNPACKI NG AND INSTALLATION This section describes the unpacking and installation procedures for your new component Unpacking All Cary Audio Design shipping cartons 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 component from damage should you wish to store it or ship it at a later date In the Box When unpacking your CAD 120S power amplifier make sure the following accessories are included You should find the following items e Power Cable e Owner s Manual e Warranty Card e Spare Fuses Warranty Card 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 A
17. rnered fantastic reviews for stable power output incredible value for the money and sound quality along with Best Buy and Class ratings from magazines and reviewers worldwide Building on this storied legacy we are releasing the CAD 1205 stereo vacuum tube power amplifier This innovative stereo power amplifier is rated at 60 watts per channel in triode mode and 120 watts per channel in ultra linear mode into an 8 ohm speaker load Full rated output power is from 17 Hz to 23 kHz with less than 1 total harmonic distortion The output stage may be switched on the fly from triode mode to ultra linear mode by using a front panel selector button There are LED lights above the mode selection button to show which mode the power amplifier is working in for visual confirmation Another nice feature is that the amplifier has an operating mode memory The CAD 1205 will remember either the triode or ultra linear mode selection when the amplifier is turned to the off position The vacuum tubes in each channel consist of one 1 6SN7 for the input gain one 1 6SN7 for the driver stage and four 4 KT 88 output power tubes The circuit is a balanced design with separate RCA and XLR inputs A soft start turn on circuit is built in for long life and easy turn on in large systems The power supply features 1 120 micro farads of capacitance for ample reserves in demanding usages The output transformers and the power transformer have a single cover
18. rting 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 WELCOME THANK YOU Dear Cary Audio Customer so pleased and excited about the Cary Audio Design CAD 1205 stereo vacuum tube power amplifier have spent countless hours designing and refining this very special vacuum tube power amplifier The CAD 1205 started life in September of 2006 as a 60 watt ultra linear push pull amplifier Billy Wright my business partner was concerned that we needed more output power for difficult loudspeaker loads At this time had just completed the new Cary Audio SLP 03 preamplifier as well Gregg Dunn our Sales Director came to me in the lab with a suggestion He suggested that a 120 watt per channel power amplifier made to match the new SLP 03 balanced vacuum tube preamplifier would be a nice
19. s 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 PROTECTI ON 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 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 Antenna discharge unit size of grounding conductors location of antenna discharge unit connection to grounding electrodes and requirements for the grounding electrode IMPORTANT SAFETY INSTRUCTIONS 14 15 16 17 18 19 20 21
20. se 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 POLARI ZATI ON The unit may be equipped with a polarized alternating current line plug a plug having one blade wider than the other Thi
21. udio 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 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 SPECI FI CATIONS Operating the CAD 1205 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 CAD 120S amplifier into operation The following section describes the CAD 120S amplifiers basic specifications The specifications are subject to change without notice or obligation Circuit Type Class AB push pull amplifier Ultra linear or Triode mode operation with a front panel selector switch Power Output Ultra linear 120 watts per channel Triode 60 watts per channel Inputs XLR balanced or RCA single ended V MU T Ld aum REDE EE 25 Heise d a 2 6SN7 driver tubes 8 KT 88 output tubes Power Transformer El High voltage amp bias supply El laminate E PETEA Output Transformer s Special bifilar wound 150 watt rating unit in each channel
22. y 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 OUTDOOR ANTENNA NSTALLATI ON SAFE ANTENNA AND CABLE CONNECTION f 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 suppo
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