Related Manuals for JEFF ROWLAND 625
Summary of Contents for JEFF ROWLAND 625
- Page 1 MODEL 625 STEREO AMPLIFIER Operational Manual REVB1 © Jeff Rowland Design Group 2011 ! All Rights Reserved...
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Page 2: Important Safety Instructions
The can be operated at any mains voltage MODEL 625 STEREO AMPLIFIER over the range of 85 to 265 VAC without any adjustments necessary. must not be modi ed in any way, other than according MODEL 625 STEREO AMPLIFIER to o cial service bulletins from JRDG (Je Rowland Design Group). -
Page 3: Limited Warranty
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 should be reused, recycled or recovered and should not be disposed of with unsorted regular waste. Please return the unit or contact the authorized dealer from whom you purchased this product for more information. - Page 4 THE ABOVE WARRANTY IS THE SOLE WARRANTY GIVEN BY JEFF ROWLAND DESIGN GROUP, INC. AND IS IN LIEU OF ALL OTHER WARRANTIES; ALL IMPLIED WARRANTIES OF...
- Page 5 NOTE FROM JEFF ROWLAND DESIGN GROUP elcome to the Je Rowland Design Group “family” and congratulations on your purchase of what is unquestionably one of the world’s nest ampli ers. With its combination of features such as precision electronic circuitry, exceptional e ciency, and...
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Page 6: Table Of Contents
TABLE OF CONTENTS Special Design Features ........................Maintenance and Care ........................Unpacking and Placement ........................ Initial Inspection ................................. Unpacking ................................... Front Panel ............................Rear Panel ............................Speci cations ........................... PAGE 5... -
Page 7: Special Design Features
SPECIAL DESIGN FEATURES Precision-machined chassis with integrated heat-sinks, MACHINED ALUMINUM CHASSIS: milled from a solid block of aircraft grade aluminum, provides exceptional thermal heat transfer/dissipation, RFI/EMI shielding, and resonance control.. Unique composite circuit architecture incorporating COMPOSITE CIRCUIT ARCHITECTURE: separate Class AB voltage and current gain blocks with no overall negative feedback, delivers a sensuous grain-free musicality of unparalleled transparency and low level resolution. - Page 8 20 amp AC power inlet accepts a wide variety of after- FLEXIBLE 20 AMP AC POWER: market high-performance power cables. Illuminated front panel push-button switches the FRONT PANEL STANDBY BUTTON: ampli er into standby mode (<1 watt consumption). A 1/8” (3.5mm) mini plug connector on rear panel permits ampli er REMOTE ON/OFF: power on/standby switching in remote and home theater applications.
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Page 9: Maintenance And Care
If you have any questions about the care or cleaning of your MODEL 625 STEREO AMPLIFIER please contact your dealer before attempting to clean the chassis. The use of a cleanser or abrasive to clean the chassis that has not been approved by the factory will almost certainly damage the nish and will not be covered under warranty. -
Page 10: Unpacking And Placement
Accessories include: 1 Detachable IEC AC Power Cord Operational Manual Warranty Card IMPORTANT: RETAIN ALL PACKING MATERIALS FOR FUTURE TRANSPORT. SHIPPING PRODUCT IN INADEQUATE PACKING MATERIALS MAY VIOLATE THE JEFF ROWLAND DESIGN GROUP MANUFACTURER’S WARRANTY. PAGE 9... -
Page 11: Front Panel
FRONT PANEL Figure 1: Front Panel FRONT PANEL POWER BUTTON. Press this button to operate the ampli er. Press again to place the ampli er in Standby mode. POWER INDICATOR RING. This white ring will illuminate when the ampli er is operational. PAGE 10... -
Page 12: Rear Panel
REMOTE ON/OFF. A 1/8” (3.5 mm) mini-plug connector is provided on the rear panel of the MODEL for remotely switching the ampli er between Operational and Standby 625 STEREO AMPLIFIER modes. When connected to another component with the proper circuitry, the ampli er standby function can be turned remotely. -
Page 13: Specifications
SPECIFICATIONS Output Power 300 watts @ 8 ohms / 550 watts @ 4 ohms Frequency Response 5 Hz – 350 kHz S/N Ratio 95 dB, ref. 1.0 watt @ 8 ohm load Frequency Response 10 Hz – 300 kHz, -3 dB @ 8 ohms Output Noise <55 !v, 20 Hz –...
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