Hafler 9303 Installation And Operation Manual Download Page 10 | Manualshive

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Summary of Contents for 9303

Page 1: ... MADE USA IN THE PROFESSIONAL POWER AMPLIFIER 9303 9505 Installation Operation PROFESSIONAL POWER AMPL nova trans ...

Page 2: ...the required total current for safe operation of all connected equip ment Furthermore extensioncordsorpowerstripsmustprovide the same three wire grounded connection It is important that the blades of the equipment s plug be able to fully insert into the matingreceptacle Neverremovetheroundgroundingpinonthe plug in an attempt to mate to a two wire ungrounded receptacle use a grounding adaptor with ...

Page 3: ... 06Vrms for 225W into 4Ω Dimensions 19 W x 12 1 2 D x 3 1 2 H excluding feet Weight 36 lbs 16 4kg Power Consumption Quiescent 84 VA at rated power 612 VA 150W into 8Ω both channels driven 9505 Power Rating 250 wpc 8 Ω 375 wpc 4Ω 750 Watts mono 8Ω Distortion 0 1 THD 20 20Hz Typically 0 005 THD 1kHz at rated power into 8Ω Damping Factor 1000 to 1kHz 100 to 20kHz 20 to 100kHz into 8Ω Input Sensitivit...

Page 4: ... Balanced Input 2 Output Connections 2 Monophonic Use 2 OPERATION Power Switch 3 Balanced Unbalanced Input Switch 3 Ground Switch 3 Mono Switch 3 Load Fault Protection 3 Warm Up 3 Cleaning and Maintenance 3 Schematic Diagram 4 PC Board Layout 6 Parts List 7 9303 9505 Functional Block Diagram 8 TECHNICAL INFORMATION Theory and Operation of trans nova 9 Circuit Implementation 9 Calibration 10 Common...

Page 5: ...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 Using state of the art surface mount assembly equipment in our manufacturing facility ensures consistency and reliability LOCATION The 9303 and 9505 can produce considerable heat in normal operation so the primary consideration when determining a loca...

Page 6: ...ble length it will drive Make sure the BALANCED UNBALANCED switch is set for UNBALANCED operation Unbalanced Source with Balanced Input Better noise rejection for long cable runs can be achieved by using a twisted pair balanced cable from the unbalanced source At the source end of the cable connect an RCA plug with the return wire and shield connected to the ground shell of the plug Wire the plug ...

Page 7: ...witch is determined by the overall noise in the system choose the position which gives the lowest hum MONO SWITCH Conventional two channel stereo operation is obtained with the STEREO MONO switch in the STEREO position For high powered single channel use set the switch to MONO and use the left channel input and the RED binding posts only for the output For thermal considerations we do not recommen...

Page 8: ...ors in microfarads 3 Component Designators 1 99 Left Channel 101 199 Right Channel 201 299 Common Parts 301 399 Chassis Power Supply 4 Left Channel Only Shown 5 Stereo Mono Switch Shown in Stereo 6 Balanced Unbalanced Switch Shown in Balanced Position 7 Chassis Float Ground Switch Shown in Float Position ...

Page 9: ... 5 ...

Page 10: ... 6 PC BO A R D LA Y O U T ...

Page 11: ...IN OHMS R1 R101 47 5k 1 4W 1 RM 4 4752C R2 R102 47 5k 1 4W 1 RM 4 4752C R3 R103 1k 1 4W 5 RM 4 102C R4 R104 1k 1 4W 5 RM 4 102C R5 R105 2 2M 1 4W 5 RM 4 225C R6 R106 100 1 4W 5 RM 4 101C R7 R107 22k 1 4W 5 RM 4 223C R8 R108 100 1 4W 5 RM 4 101C R9 R109 100 1 4W 5 RM 4 101C R10 R110 332 1 4W 1 RM 4 3320C R11 R111 100 1 4W 5 RM 4 101C R12 R112 332 1 4W 1 RM 4 3320C R13 R113 22 1 1 4W 1 RM 4 0221C R1...

Page 12: ...0 F201 15A Slo Blo FS 015SB F203 F204 2 5A Fast Mini FS 0390 9303 Differences IEC Line Cord FAH 146 C19 C119 15000µf 75V CER 159ES C20 C120 15000µf 75V CER 159ES F201 10A Slo Blo FS 010SM Not Used Q47 Q147 2SK 1058 Q50 Q150 2SJ 162 DESIGNATOR VALUE PART BR201 Bridge Rectifier SS 222 BR301 Bridge Rectifier SSH 609 BR 302 Bridge Rectifier SSH 609 IEC Connector CC 0918 IEC Line Cord FA 0209 Dual Bind...

Page 13: ... measured specifications are very good the numbers do not describe the realistic sound of the amplifiers CIRCUIT IMPLEMENTATION 9 Earlier models of amplifiers we have offered using the trans nova topology have earned the reputation for clean natural sounding reproduction A conservative purist design approach was used to avoid compromising the desirable characteristics of the trans nova circuits Ci...

Page 14: ...amplifier design The power supply utilizes a UI style transformer with a separate primary for each channel The transformer has a separate secondary for each channel high voltage power supply each feeding a conventional split full wave bridge rectifier High voltage power supply capacitance is 20 000µF per rail for each channel for the 9505 and 5 000 for the 9303 The third transformer secondary feed...

Page 15: ...n years from the date of purchase including parts labor and return shipping costs within the Continental United States Alaska and Hawaii This warranty applies only to products sold in the United States Of America For warranties outside the U S A please contact your local agent It is the owner s responsibility to pay shipping preferably United Parcel Service UPS to the factory collect shipments wil...

Page 16: ...MAN 0587 D 4 95 HAFLER PROFESSIONAL A DIVISION OF ROCKFORD CORPROATION 546 SOUTH ROCKFORD DRIVE TEMPE ARIZONA 85281 U S A IN U S A 602 967 3565 IN EUROPE FAX 49 4207 801250 IN JAPAN FAX 81 559 79 01265 ...

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