Jeff Rowland Design Group 1 owner manual Installation, Input Impedance Selection

days of purchase. Not only will your amplifier be registered, but you will, in the future, be informed of new products and services.

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The amp can be lifted out of its crate while still wrapped in the plastic bag and surrounded by the protective foam.

Installation

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.

When the amp is in position, the power cord should be inserted first at the inlet on the amplifier back panel, then connected to an appropriate power source. The amplifier is equipped with a "stand-by" power switch, located and identified on the rear panel, as well as an illuminated power push button switch on the front panel. The stand-by power switch should be turned on initially after plugging in the AC power cord. The amplifier will now be in stand-by mode, indicated by a dimly lit front panel button. The rear panel switch should be left on at all times, maintaining stable operating parameters and thereby improving performance, reliability and longevity. Power consumption in stand-by mode is less than 25 watts, providing low-cost operation.

Pressing the dimly lit push button will switch the amplifier on for normal operation. Note that the lamp intensity will increase and a faint "click" will be heard. All subsequent on- off cycles should be initiated by the front panel switch.

If the front panel switch does not light, the amplifier does not power up or a fuse blows, disconnect AC power, refer to the troubleshooting section of this manual or contact your dealer.

Input Impedance Selection

Your amplifier is provided with user-adjustable input impedance. A four (4) position D.I.P. switch for each channel is located and clearly marked on the back panel. Jeff Rowland Design Group has chosen 3 values of input impedance to cover the majority of applications. If you want to change your input impedance, please turn off the front panel power before doing so. Selecting from the switch codes shown below will provide the specific input impedance desired by the user.