Related Manuals for JEFF ROWLAND 3
Summary of Contents for JEFF ROWLAND 3
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Page 1: Table Of Contents
MODEL 3 MONO AMPLIFIER OWNER’S MANUAL TABLE OF CONTENTS Introduction Features Unpacking Instructions Installation Space requirements A.C. connections Input Impedance Selection Adjustable Gain Signal Connections Single-ended input configuration Differential mode input configuration Basic Troubleshooting Technical Specifications... -
Page 2: Introduction
Please take a few moments to read this owners manual. Contrary to popular belief, there is actually quite a bit of useful information in an owners manual. The Model 3 offers tremendous interconnection flexibility regardless of the preamp used. A thorough understanding of your amplifier now can save you a lot of anxiety later. -
Page 3: Unpacking Instructions
Locate the amplifier as close as possible to its final installation point. Allow access to the back panel for making connections. All Jeff Rowland Design Group products are convection cooled, eliminating the need for a fan. When operating, the amp should have at least 2 inches of space on all sides. It is acceptable to stack the amplifiers only if fresh air is allowed to circulate around them. -
Page 4: Input Impedance Selection
"medium" (20 k ohms) adjustment. Adjustable Gain The overall gain structure of your Model 3 amplifier can be adjusted to one of four different values, 20, 26, 29.5 or 32 dB. (Your amp comes set from the factory at the 26 dB adjustment.) The Model 3 can thus be used with dissimilar-gain preamplifiers, as well... -
Page 5: Signal Connections
Signal Connections The amplifiers from JEFF ROWLAND DESIGN GROUP offer unprecedented compatibility with associated equipment. In all cases turn the front panel power off before connecting or disconnecting signal wires. "Hot patching" is not recommended. A series of descriptions follows to explain the hookup schemes most commonly utilized in home stereo applications. -
Page 6: Technical Specifications
1. Check the rail fuses; on the Model 3, these are located on the inside of the amp adjacent to the encapsulated transformer. A fuse can often look good even if it is actually bad. If possible, check the fuses with a meter.