9505 Installation & Operation ® ® an tr va no s USA IN T E HE MAD PROFESSIONAL POWER AMPLIFIER AMPL NOTICE - IMPORTANT SAFETY INFORMATION CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ! The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure, that may be of sufficient magnitude to constitute a risk of electric shock to persons. 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 appliance. the same three wire grounded connection. It is important that the blades of the equipment's plug be able to fully insert into the mating receptacle. Never remove the round grounding pin on the plug in an attempt to mate to a two wire ungrounded receptacle: use a grounding adaptor with the grounding tab or wire suitably connected to earth ground. 11. NON-USE PERIODS During periods of extended non-use, the power cord should be unplugged from the power source. 12. CLEANING The equipment should be cleaned only as detailed in the operating instructions. 13. OBJECT AND LIQUID ENTRY Care should be taken so that objects and/or liquids, such as cleaning fluids or beverages, are not spilled into the enclosure of the equipment. 14. DAMAGE REQUIRING SERVICE Hafler equipment should be serviced by qualified service personnel when: A. The power supply cord or plug has been damaged, or B. Objects have fallen onto, or liquid has been spilled into the equipment, or C. The equipment has been exposed to rain, or D. The equipment does not appear to operate normally or exhibits a marked change in performance, or E. The equipment has been dropped, or the enclosure has been damaged. 15. SERVICING The user should not attempt to service the equipment beyond that which is described in the operating instructions. All other service should be referred to qualified service personnel. 16. CARTS AND STANDS The equipment should be used with carts or stands only of sufficient strength and stability for the use intended. An equipment and cart combination should be moved with care. Quick stops and starts, excessive force, and uneven surfaces may cause the equipment and cart combination to topple. WARNING: TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. 1. READ INSTRUCTIONS All the safety and operating instructions of your Hafler equipment should be read before power is applied to the equipment. RETAIN OWNER'S MANUAL These safety and operating instructions should be retained for future reference. HEED WARNINGS All warnings on the equipment and in the operating instructions are important and should be followed. FOLLOW INSTRUCTIONS All operating and use instructions are important and should be followed. HEAT The equipment should be kept away from areas of high temperature, i.e., heater vents, radiators, stoves/ovens, fireplaces, etc. VENTILATION The equipment should be used in an area suitable for proper ventilation. Care should be taken not to impede airflow in and around the cabinet. WATER AND MOISTURE The equipment should not be used in or around water, such as a bathtub, sink, or swimming area. Also, the equipment should not be used in areas prone to flooding, such as a basement. POWER SOURCES The equipment should be connected only to a power source of the same voltage and frequency as that listed on the rear panel above the power cord entry point. POWER CORD PROTECTION Power cords should be arranged so they do not interfere with the movement of objects in the room: people, fan blades, utility carts, etc. Also, care should be taken that the cord is not pinched or cut, and placed so it is not in danger of being pinched or cut, as in under a rug, around a tight corner, etc. 2. 3. 4. 5. 6. 7. 8. 9. 10. POWER CORD GROUNDING The power supply cord is of a three wire grounded type, designed to reduce the risk of electric shock sustained from a live cabinet. It is assumed to be of suitable length for most uses of the equipment. The use of extension cords and power strips is discouraged unless they are of suitable rating to deliver the required total current for safe operation of all connected equipment. Furthermore, extension cords or power strips must provide ­i­ PERFORMANCE SPECIFICATIONS 9505 Power Rating: FTC (20Hz-20kHz, <0.2% THD) 250 wpc into 8 375 wpc into 4 750 w into 8 (bridged mono) Distortion: Signal-to-Noise Ratio: Frequency Response: Bandwidth: Slew Rate: CMRR: Input Impedance: <0.1% THD, typically 0.005% THD 1kHz at rated power into 8 100dB below rated output from 20Hz-20kHz "A" Weighted 20Hz-20kHz, ±0.1dB 0.15Hz-300kHz, +0/­3dB 150 V/µs >75dB at 1kHz 47,000 per phase balanced Input Sensitivity Range: 800mV (@ 8) per phase balanced 690mV (@ 4) per phase balanced In/Out Gain: Damping Factor: Power Consumption: (Both Channels Driven) +29dB maximum 1000 (to 1kHz); 100 (to 10kHz); 20 (to 100kHz) 160W / 2A @ 120VAC (Idle Power) 370W / 4.2A @ 120 VAC (1/8 Power ­ 8) 840W / 8.8A @ 120 VAC (Max. Power ­ 8) Controls & Switches: Indicators: Connectors: Front Panel Power Switch Line Power LED XLR & 1/4" combo input Gold-plated RCA input 5-way Binding Post output IEC Standard Line input Dimensions: 19"W x 12-1/2"D* x 5-1/4"H (3-rack spaces) (48.26cm x 31.75cm x 13.34cm) *plus 1" (2.54cm) for handles Net Weight: 50 lbs. (22.68kg) 12.05 16.94 1.19 19.00 ® True-balanced JFET input Series 9505 Power amplifier 5.20 ­ ii ­ TABLE OF CONTENTS SAFETY PRECAUTIONS ........................................................................................................................................... i PERFORMANCE SPECIFICATIONS ......................................................................................................................... ii INTRODUCTION ................................................................................................................................................... 1 INSTALLATION Front/Rear Panel View ...................................................................................................................................... Location ........................................................................................................................................................... AC Line ............................................................................................................................................................ Input ................................................................................................................................................................. Balanced Input: 1/4" Tip Ring Sleeve .......................................................................................................... Balanced Input: XLR ................................................................................................................................... Unbalanced Input ...................................................................................................................................... Unbalanced Source with Balanced Input ................................................................................................... Output Connections ......................................................................................................................................... Monophonic Use .............................................................................................................................................. 2 3 3 4 4 4 4 4 4 4 OPERATION Power Switch ................................................................................................................................................... 5 Input Switch ..................................................................................................................................................... 6 Ground Switch ................................................................................................................................................. 6 Mono Switch .................................................................................................................................................... 6 Load Fault Protection ........................................................................................................................................ 6 Warm Up ......................................................................................................................................................... 6 Cleaning and Maintenance ............................................................................................................................... 6 PC Board Layout ............................................................................................................................................... 7 Schematic Diagram .......................................................................................................................................... 8 Parts List ......................................................................................................................................................... 10 9505 Functional Block Diagram ..................................................................................................................... 12 TECHNICAL INFORMATION Theory and Operation of trans·nova .............................................................................................................. Circuit Implementation ................................................................................................................................... Calibration ..................................................................................................................................................... Common Mode Rejection ........................................................................................................................ Bias .......................................................................................................................................................... 13 13 14 14 14 WARRANTY ......................................................................................................................................................... 15 INTRODUCTION The Hafler 9505 is a two channel professional power amplifier using passive cooling with a large heatsink for lowmechanicalnoise.Ourpatentedtrans·novacircuittopologyandMOSFEToutputstageensurestrouble-free,longtermoperation andisbackedbyoursevenyearwarranty. Thismanualcontainsinformationonusingthe9505amplifierandisorganizedintothreemainsections."Installation"coversthe locationandconnectionoftheamplifierinthesystem.Likemanyprecisioncomponents,carefulattentiontotheinitialsetupcan yielddividendsinhigherperformanceandtrouble-freeuse."Operation"coversthecontrolsandfeaturesoftheamplifierandhow tousethemtogetthebesteffect.The"TechnicalReference"sectioncontainsinformationonthecircuitimplementationandthe schematicdiagramandpartslist.WestronglyurgereadingovertheInstallationandOperationportionsofthismanualbeforeputting theamplifierintoservice. The circuitry used in the 9505 is the latest refinement of our trans·nova (TRANSconductance NOdal Voltage Amplifier,USPatent4,467,288)circuit.The9505utilizesourproprietaryDIAMOND(patentpending)transconductancedriver stagewhichcombinesthelinearityofClassAoperationwiththecurrentheadroomofaClassBsystem.Whenusedincombination withtherobustoutputstagefeaturedinthismodel,DIAMONDyieldslowerhighfrequencydistortionwithoutthesonicpenalties associatedwithincreasingthenegativefeedback. The 9505 has fully differential inputs for use in balanced line systems. The balanced input terminals work with either 1/4" TRS phone or XLR plugs. Gold-plated RCA phono jacks are available for use with unbalanced source components. The output terminals are gold-plated binding posts, spaced on 3/4" centers for use with dual banana plugs. For high power applications, the amplifier can run in bridged mono for double the output voltage. ­1­ ® True-balanced JFET input Series 9505 Power amplifier Front Panel View ­2­ ® A Division of Rockford Corp. Tempe, AZ 85281 U.S.A. Made in the U.S.A. CHANNEL 2 4-8 CHANNEL 1 4-8 ­ Phone Connections + Mono ­ + ­ 3 2 1 XLR Connections + CH 2 PUSH CHANNEL 1 (Mono) CH 1 PUSH Audio GND Chass. Float 120 VAC 60Hz 1800W MAX Mono 2 Ch Bal. CHANNEL 2 Unbal. CHANNEL 1 MONO OUTPUT: Use CH 1 Input Only. MODEL 9505CE T8A 250V 230 V~ 50/60Hz 662W Rear Panel View INSTALLATION LOCATION The 9505 power transformer can generate a substantial magnetic field, so caution should be exercised in the placement of low level components such as a tape deck, mixer or mic preamp to avoid inducing noise in the low level circuitry. The amplifiers ca ...