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MODEL 525 STEREO AMPLIFIER

Operational Manual

© Jeff Rowland Design Group 2013

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All Rights Reserved

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Summary of Contents for 525

Page 1: ...MODEL 525 STEREO AMPLIFIER Operational Manual Jeff Rowland Design Group 2013 All Rights Reserved...

Page 2: ...ult 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 PROTECTIVE SYSTEMS The MODEL 525 is equipped with internal...

Page 3: ...the right to inspect any product which is subject to any warranty claim prior to repairing or replacing it Final determination of warranty coverage lies solely with Je Rowland Design Group Inc Said de...

Page 4: ...ding our commercial warranty policies GUIDE USE This guide is designed to make installing and using this product as easy as possible Information in this document has been carefully checked for accurac...

Page 5: ...you to gain the maximum performance and ease of use for which this amplifier was designed Please note that your MODEL 525 serial number begins with the letters BA Please include this number with any...

Page 6: ...Placement 9 Front Panel Operations 10 Rear Panel Connections 11 Connecting to Loudspeakers Stereo Mode 12 Connecting to Loudspeakers Bridge Mode 13 Connecting to Loudspeakers Bi Amp Mode 14 Switching...

Page 7: ...and inductance and introduces less noise than conventional leaded components THIN FILM RESISTORS All resistors are low noise 0 1 thin film type for extremely low thermal noise which complement the lo...

Page 8: ...es the amplifier into standby mode 1 watt consumption An internal switch allows the user to dim the front panel indicator light ring or shut o the light altogether when the amplifier is powered on REM...

Page 9: ...ONTHS 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 SHOU...

Page 10: ...rongly suggest that you save all of the packing materials If the amplifier is returned to your dealer or Je Rowland Design Group the original packing materials must be used for shipment to avoid possi...

Page 11: ...1 FRONT PANEL POWER BUTTON Press this button to operate the amplifier Press again to place the amplifier in Standby mode 2 POWER INDICATOR RING This white ring will illuminate when the amplifier is op...

Page 12: ...s 5 LOUDSPEAKER OUTPUT B Positive terminal Use with LOUDSPEAKER OUTPUT A Positive terminal for Bridge Tied Load BTL See CONNECTING TO LOUDSPEAKERS BRIDGE MODE for detailed instructions 6 LOUDSPEAKER O...

Page 13: ...CONNECTING TO LOUDSPEAKERS STEREO MODE Figure 3 Stereo Mode loudspeaker connections MODEL 525 STEREO AMPLIFIER PAGE 12...

Page 14: ...CONNECTING TO LOUDSPEAKERS BRIDGE MODE Figure 4 Bridge Mode loudspeaker connections MODEL 525 STEREO AMPLIFIER PAGE 13...

Page 15: ...CONNECTING TO LOUDSPEAKERS BI AMP MODE Figure 5 Bi Amp Mode loudspeaker connections MODEL 525 STEREO AMPLIFIER PAGE 14...

Page 16: ...2 Remove all 12 screws attaching the bottom cover to chassis Set bottom cover and screws aside 3 Release blue ribbon cable from green circuit board with thumbs Figure 6 4 Bend blue ribbon cable backwa...

Page 17: ...Figure 7 Blue Ribbon Cable in Open Position Figure 8 SW1 Dip Switch in Stereo Position Figure 9 SW1 Dip Switch in Bridge Position MODEL 525 STEREO AMPLIFIER PAGE 16...

Page 18: ...0 kHz 3 dB Input Impedance 40k ohms THD Noise 0 05 20 Hz 20 kHz Damping Factor 1000 1 kHz Overall Gain Bal or Unbal 26 32 dB BTL Inputs 1 pair Balanced XLR Outputs 1 pair parallel binding posts Amplif...

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