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IMPORTANT SAFETY INSTRUCTIONS 

The amplifier has been designed to operate at the highest level of efficiency and 
performance in any normal operating situation; however, there are a few important use 
and care principles that must be kept in mind when operating the amplifier:

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Read these instructions.

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Keep these instructions.

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Follow all instructions.

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Do not expose the amplifier to rain, moisture, or excessively damp conditions.

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Do not block any ventilation openings.

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Due to auto-ranging circuitry and dual-stage voltage regulation, the audio 
performance will not be affected by any voltage fluctuations within the operating 
voltage range. The 

MODEL 735 MONOBLOCK AMPLIFIER

 can be operated at any 

mains voltage over the range of 85 to 265 VAC without any adjustments 
necessary. 

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The 

MODEL 735 MONOBLOCK AMPLIFIER

 must not be modified in any way, other 

than according to official service bulletins from JRDG (Jeff Rowland Design 
Group). Otherwise, the factory warranty will be immediately voided.

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When operating the 

MODEL 735  MONOBLOCK AMPLIFIER

, 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 ungrounded AC outlet.

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The 

MODEL 735 MONOBLOCK AMPLIFIER

 is designed to perform optimally with no 

adjustments or maintenance for the lifetime of the product. Do not attempt to 
open the bottom or top cover of the amplifier and refer all service issues to 
qualified personnel. The voltages inside the 

MODEL 735 MONOBLOCK AMPLIFIER

 

can be hazardous.

PROTECTIVE SYSTEMS

The 

MODEL 735 MONOBLOCK AMPLIFIER

 is equipped with internal fuses for protection 

against excessive AC current draw; however, since no protection circuitry or 
system can completely protect a product from every electrical hazard, certain 
precautions should be observed. In the event of severe voltage hazards such as 
lightning or when the amplifier will not be used for extended periods of time, the 
amplifier should 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.

The crossed-out wheeled bin is the European Union symbol for 
indicating separate collection for electrical and electronic equipment. 
This product contains electrical and electronic equipment which 

 

PAGE   1

Summary of Contents for 735

Page 1: ...Model 735 MONOBLOCK AMPLIFIER Operational Manual Jeff Rowland Design Group 2020 All Rights Reserved...

Page 2: ...d 3 wire grounded AC cable ground terminal is defeated or lifted or the unit is connected to a 2 wire ungrounded AC outlet The MODEL 735 MONOBLOCK AMPLIFIER is designed to perform optimally with no ad...

Page 3: ...with Jeff Rowland Design Group Inc Said determination shall be made as soon as possible following receipt of the product Jeff Rowland Design Group Inc may at its option require from the purchaser val...

Page 4: ...ty exclusions may apply Contact your dealer or Jeff Rowland Design Group Inc for information regarding our commercial warranty policies GUIDE USE This guide is designed to make installing and using th...

Page 5: ...gain the maximum performance and ease of use for which this amplifier was designed Please note that your MODEL 735 MONOBLOCK AMPLIFIER serial number begins with the letters SD Please include this num...

Page 6: ...TABLE OF CONTENTS Special Design Features 6 Maintenance and Care 8 Unpacking and Placement 9 Initial Inspection 9 Unpacking 9 Front Panel 10 Rear Panel 11 Speci cations 12 PAGE 5...

Page 7: ...dynamic signal conditions HIGH CURRENT COPPER BUS BARS High current dual polarity ultra low impedance copper bus bars distribute both power supply input current and signal output current virtually eli...

Page 8: ...AC power inlet accepts a wide variety of after market high performance power cables FRONT PANEL STANDBY BUTTON Illuminated front panel push button switches the amplifier into standby mode 0 3 watt con...

Page 9: ...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 WARNING THE FRONT PANEL OF THE UNIT...

Page 10: ...aler immediately We strongly suggest that you save all of the packing materials If the amplifier is returned to your dealer or Jeff Rowland Design Group the original packing materials must be used for...

Page 11: ...ANEL POWER BUTTON Press this button to operate the ampli er Press again to place the ampli er in Standby mode 2 POWER INDICATOR LAMP This light will illuminate when the ampli er is operational Figure...

Page 12: ...Install the positive usually red loudspeaker cable spade terminal to the positive binding post and the negative usually black spade terminal to the negative binding post Secure the loudspeaker connec...

Page 13: ...t transformer Damping Factor 500 20 Hz 20 kHz Overall Gain Bal or Unbal 26 dB Common Mode Rejection Ratio 90 dB 20 Hz 20 kHz Absolute Phase Non inverting Pin 2 Positive Inputs Balanced XLR Outputs 2 p...

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