Carson SC-407 Stereo Amplifier User Manual
Contents
1. Audio Design O O O O O O O O O O O O O O O O O O O O O O 0 0 0 0 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 O 0 0 0 0 A 306 Reference Power 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 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 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 0 0 A 306 REFERENCE POWER AMPLIFIER A 306 POWER AMPLIFIER Cae REC SERA Na CANE Front Panel P4 Rear Panel P 5 6 Specifications P 7 Installation P8 Operation P 9 Service Care and Warranty P 10 11 IMPORTANT SAFETY INSTRUCTIONS CAUTION N 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 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 enclosu2. If the connector obstructs wing turning slide it into place when the binding post opening provides a snug fit Then use quarter turns to tighten the connection as needed QC POWER INPUT ACIN Connectto an AC power supply using the included power supply cord 3 DC TRIGGER INPUT TERMINALS Provide DC trigger control One 3 5mm mini jack is available to receive 12V DC signals from a connected component Toggling the connected component between on and standby will toggle the A 306 into and out of standby Rear Panel 4 BALANCED INPUTS Accepts right channel and left channel balanced signals from the associated preamplifier with balanced outputs The pin assignments of these XLR type female input are Pin 1 Signal ground Pin 2 Signal non inverting Pin 3 Signal inverting Connector ground lug chassis ground Refer to the operating manuals of your balanced output preamplifier to verify that the pin assignments of their output connectors correspond to the A 306 Ifnot wire the cable so thatthe appropriate input pin connects to the equivalent output pin 5 SINGLE ENDED INPUTS Accepts right channel and left channel RCA inputs from preamplifier These signals are converted to balanced signals upon entering the chassis and processed as balanced signals thereafter One pair RCA connector is available 6 INPUT SWITCH Use this switch to select the inputuse the BALANCED inputs or SINGLE ENDED i
3. A 306 POWER AMPLIFIER Y Y Q POWER button Press once to turn the power on Press again to set to the OFF position and turn the power off 2 POWER ON indicator This backlit etched Crystal 3D logo lights when the power amplifieris switched on G STANDBY indicator This indicator lights when the power amplifieris switched to standby mode Rear Panel OO 00 0 Y O O O O LOUDSPEAKER BINDING POSTS OUTPUTS Provide audio output Two pair of custom made high current Cardas binding posts labeled positive and negative are included These binging posts are designed to facilitate high pressure high contact area connections without the use of tools such as nut drivers A simple finger tightening actually yields higher contact pressure than traditional hex binding posts There is no need to exert unusual effort when tightening CAUTION NEVER connect power amplifier outputs to any component other than a loudspeaker NEVER short circuit power amplifier outputs NEVER connect power amplifier outputs to another power amplifier s outputs DO NOT OVERTIGHTEN the A 306 binding posts Tight high contact pressure connections can be achieved with figer tightening DO NOT FORCE the A 306 binding post wings up and overa bent or oversized connector Doing so may resultin binding post damage
4. on top of a power amplifier Allow 4 6 inches 10 15cm above the unit for proper ventilation 2 3 Power Requirement The A 306 Power amplifier is designed to operate from AC mains current The design AC voltage is either 100 120V or 200 240Volts AC at 50 60 Hz 2 4 Connections Balanced Inputs Accepts right channel and left channel balanced signals from preamplifer with balanced outputs Single ended Inputs Accepts right channel and left channel single ended inputs from preamplifier Loudspeaker binding posts outputs Connect positive binding posts on the A 306 to positive inputs on the associated loudspeaker Connect negative binding posts on the A 306 to negative inputs on the associated loudspeaker Operation A 306 POWER AMPLIFIER Y Y Q 1 POWER button Press once to turn the power on Press again to set to the OFF position and turn the power off 2 POWER ON indicator This 3D etched Crystal display is backlit by blue led s and will come on when the power 1s turned on G STANDBY indicator This indicator lights when the power amplifieris switched to standby mode 4 BREAKING IN your A 306 Like other greatpower amplifiers the A 306 requires at least 100 hours of continuous operation after itis firstturned onto sound its best This gives the materials in various circuitcomponents achance to form so audio signals achieve greater definiti
5. 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 27 FCC I NFORMATI ON FOR USER CAUTION CAUTI ON ANY changes or modifications not expressly approved by the party responsible RP OF ELECTRIC SHOCK 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
6. R SUPPLY SECTION FOUND INSIDE THE UNIT CAN BE FATAL COMPLETELY REMOVE THE AC POWER PLUG FROM THE WALL BEFORE SERVICING THE POWER AMPLIFIER CAUTIONS NEVER REMOVE OR INSERT THE BACK PANEL AC PLUG WHEN THE UNIT IS ON OR THE AC CORD IS PLUGGED INTO THE WALL PLEASE OBSERVE THE SAFETY DIRECTIONS IN THIS MANUAL 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 is 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 original purchaser must 1 C
7. allation This section describes the unpacking and installation procedures for the A 306 Power amplifier WARNING MAKE NO ATTEMPT TO PUT THE A 306 POWER AMPLIFIER IN SERVICE WITH THE TOP COVER REMOVED CONTACT WITH HIGH VOLTAGE INSIDE THE 2 1 Unpacking All shipping containers have been specifically 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 the A 306 Power amplifier mechanism or other damage is found after unpacking and visual inspection take care not to destroy the evidence so that the shipping agent may inspect the damage If necessary document the damage with photographs and contact the shipping company immediately Carefully remove your A 306 Power amplifier from its packing carton and examine it closely for signs of shipping damage It is highly recommended to save all original packing cartons to protect your A 306 from damage should you wish to store it or ship it for after sales service Replacement cartons and packing are available at a nominal charge from Cary Audio Design 1f ever required 2 2 Placement In general the location of your new A 306 is not critical However certain precautions must be taken to ensure optimum performance Avoid extremely hot locations such as near radiators or other heating units Avoid getting it wet or using it near water Do not stack the A 306
8. ca 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 CARY AUDIO DESIGN 1020 Goodworth Drive Apex NC 27539 phone 919 355 0010 fax 919 355 0013 www caryaudio com O O O O O O O O O O O O O O O O O O O O OOOO 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 O 0 0 0 0 0
9. cle 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 vale 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 receptacl
10. cturer 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 recepta
11. es 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 substitutions 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 such as the DVD 7 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
12. m 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 is 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 within the United States of Ameri
13. nputs Specifications Operating the A 306 Power amplifier 1s a simple procedure since each unit 1s designed for long term stability in virtually any home operating situation 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 Cary Audio Design A 306 in operation The following definitions are applicable to this manual Please follow these definitions carefully 1 1 Specifications The following section describes the A 306 Power amplifier basic specifications Specifications are subject to change without notice or obligation Rated power output Rated total harmonic distortion Frequency response Controller Connectors Signal to Noise ratio Input impedance Voltage gain Input sensitivity Damping Factor Power Input Power Consumption 600 Watts per channel rms at 8 Q 1 100 Watts per channel rms at 4 Q 0 2 THD 0 5 dB from 20 Hz to 20 kHz 1 IEC AC mains receptacle 4 custom binding posts 1 3 5 mm mini plug jack for remote trigger in 1 pair 3 pin XLR balanced input connector 1 pair RCA input connector 80 dB CCIR 100 k Q RCA unbalanced 200 k Q XLR balanced 27 2 dB 0 7 V full rated output gt 1 000 20 20 000 Hz Configured at factory for either 100 120 or 200 240 VAC 50 60 Hz 100 Watts at idle 15 Watts in standby 1 200 Watts at full power Inst
14. omplete 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 accessories that do not confor
15. on smoothness and transparency Although the unit willsound spectacular when you first operate it you will find it worthwhile to listen again after a few days and you ll discover details in your music you may not have guessed were there Service and Care 3 1 A 306 Power Ampfilier Care and Cleaning The cabinet housing and front panel of the A 306 may be cleaned with a soft cloth and Windex or a mild window cleaner The frequency of cleaning will be governed by the operating environment cleanliness Do not use benzene harsh or abrasive chemicals to clean the front or rear panel as they may remove or damage the labels 3 2 Factory Service Careful consideration has been given to the design of your A 306 Power amplifier to keep maintenance problems to a minimum Any service problems should be referred to our Customer Service Department phone number 919 355 0010 from 1 5 PM US East Coast Time Zone DO NOT return the A 306 to the factory without a return authorization number RA from the Customer Service Department Cary Audio Design Inc will assume no responsibility 1f the shipping company refuses to pay a 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 the A 306 in the event that you move or after service 1s needed WARNINGS MAKE NO ATTEMPT TO PUT THE A 306 INTO SERVICE WITH THE COVER REMOVED CONTACT WITH THE POWE
16. re 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 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 MOI STURE 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 manufa
17. 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 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
18. 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 I NSTALLATI ON 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 Front Panel
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