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OW N E R ’ S M A N UA L   

M O D E L 5 0 1 M O N O A M P L I F I E R

Summary of Contents for 201

Page 1: ...OWNER S MANUAL MODEL 501 MONO AMPLIFIER ...

Page 2: ...OWNER S MANUAL MODEL 50 1 M O N O A M P L I F I E R Introduction 2 Product Features 3 Package Contents 4 Initial Inspection 5 Maintenance Cleaning 6 7 Protection Systems 7 Installation Use Care 8 9 Signal Power Connections 10 12 Specifications 13 Dimensions 14 Optional Adjustments 15 ...

Page 3: ...ondence regarding your Model 501 Mono Amplifier It has been my joy to create an audio component of enduring value that reflects the highest ideals of musical and artistic expression It is my hope that these qualities will enrich your experience and pride of ownership Welcome to the Jeff Rowland Design Group family and congratulations on your purchase of what is unquestionably one of the world s fi...

Page 4: ...ise pollution throughout amplifier signal circuitry CE approved speaker output terminals require no tools for secure low resis tance connections Fully balanced topology implemented in both input and output circuitry Proprietary switch mode power supply technology ensures consistent performance under all operating and AC line conditions Low power consumption permits constant power up operation to e...

Page 5: ...ll of the auxiliary components listed below are enclosed within the shipping carton and accessory box Refer to the illustrations and verify that the proper components are included PA C K A G E C O N T E N T S OWNER S MANUAL MODEL 501 MONO AMPLIFIER OWNER S MANUAL MODEL 501 MONO AMPLIFIER AC POWER CABLE WARRANTY REGISTRATION WARRANTY CARD ...

Page 6: ...nspections and a minimum 72 hour burn in period prior to shipment and should therefore be in perfect operating condition upon delivery If the amplifier does not operate correctly please notify your dealer immediately We strongly suggest that you save all of the packing materials If the amplifier is returned to your dealer or JRDG the original packing materials must be used for shipment to avoid po...

Page 7: ...ical fashion of most audio and video equipment there are a few rules that must be kept in mind when cleaning the equipment Please allow the front panel which is coated with an automotive grade polyure thane finish to cure for 6 months before attempting to clean it This will prevent small scratches from marring the surface before the surface coating has had a chance to harden completely The front p...

Page 8: ...ould be unplugged from the AC mains to avoid potential damage to the internal circuitry All other audio video system components should also be disconnected from AC mains power as hazardous voltages can easily travel throughout an interconnected system If you have any questions about the care or cleaning of your Model 501 Mono Amplifier please contact your dealer or the JRDG factory before attempti...

Page 9: ...design of the Model 501 allows it to be installed in any number of music film and surround sound systems For connection instructions for use in a typical two channel stereo system please see page 11 of this manual The main chassis of the Model 501 is precision machined out of a solid block of aluminum to create as rigid an enclosure as possible impervious to lateral and torsional forces The amplif...

Page 10: ...y voided Be sure the amplifier power switch is turned off or AC power cable is removed before connecting or disconnecting any loudspeaker or interconnect cables When operating the Model 501 a properly grounded AC receptacle should be used A potential shock hazard may result if the supplied 3 wire grounded AC cable ground terminal is defeated or lifted or the unit is connected to a 2 wire ungrounde...

Page 11: ... the Master AC Power Switch is OFF the indicator will be off 2 BALANCED SIGNAL INPUT If you are using balanced XLR inter connects from your source components they should be connected to the balanced input connector The connector unlocking tab must be pressed to disconnect the XLR inter connect cable from the amp lifier NOTE Pin 2 of the XLR connector is signal positive with respect to speaker outp...

Page 12: ...THE AMPLIFIER TO AC POWER and contact your dealer immediately Install the AC Power Cable between the AC input connector and your AC mains outlet 5 MASTER AC POWER SWITCH This switch controls the operating status of the amplifier Pressing the I symbol on the switch will turn the amplifier ON Pressing the O symbol on the switch will turn the amplifier OFF S i g n a l p o w e r c o n n e c t i o n s ...

Page 13: ...ge to internal circuitry can occur if improperly wired or unapproved AC power cords are used Your dealer can be a helpful resource for selecting the proper accessories for your needs Also if the unit is plugged into a voltage different from the range listed on the back panel it will result in serious damage and will void the warranty 6 12V REMOTE TRIGGER A 1 8 3 5 mm mini plug connector is provide...

Page 14: ...rtion 19 20 kHz 002 Damping Factor 1 kHz 1000 Overall Gain Balanced or Unbalanced Selectable Internal Jumper 26 or 32 dB Common Mode Rejection Ratio 90 dB 20 Hz 20 kHz Absolute Phase Non inverting Pin 2 Positive Inputs 1 Balanced XLR Unbalanced operation requires an optional XLR to RCA adapter Outputs 1 CE Approved Speaker Wire Clamp Power Consumption Idle 15 watts Maximum 1300 watts Amplifier Wei...

Page 15: ...GS COLOR ADO 80933 USA E mail jrdg jeffrowland com WWW JEFFROWL AND COM TELEPHONE 7 19 473 1181 14 14 6 in 372 mm 3 3 in 85 mm 8 4 in 213 mm 2 8 in 72 mm D I M E N S I O N S OWNER S MANUAL MODEL 501 MONO AMPLIFIER 13 0 in 292 mm ...

Page 16: ...ry you may sustain should you undertake any of these adjustments yourself adjusting amplifier OVERALL GAIN Step 1 Unplug the Model 501 Mono Amplifier power cable from the wall AC outlet Step 2 Place the unit upside down on a soft clean surface Using a 2 Phillips screwdriver remove the ten screws that secure the bottom cover of the unit Step 3 Locate jumper J103 on the rear panel board of the unit ...

Page 17: ...PO BOX 7231 COLOR ADO SPRINGS COLOR ADO 80933 USA E mail jrdg jeffrowland com WWW JEFFROWL AND COM TELEPHONE 7 19 473 1181 ...

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