User manual JEFF ROWLAND MODEL 2

[. . . ] Note: Many shippers require notification and an inspection within twenty-four (24) hours of delivery to ascertain the nature of damages incurred. Your Model 2 Amplifier has undergone extensive performance evaluations, listening tests, quality control inspections and a minimum seventy-two (72) hour burn-in period prior to shipment and should be in a perfect operational condition upon receipt. If the Amplifier does not operate correctly, please notify your dealer immediately. If the Amplifier is returned to your dealer or Jeff Rowland Design Group, the original packing materials must be used for shipment. Neither Jeff Rowland Design Group nor the shipper can be held responsible for damages incurred during transit if the original factory packing is not used. [. . . ] As a general rule, most installations allow the Amplifier chassis to be rigidly coupled to the supporting structure via the spiked coupling interface supports. In carpeted installations, these supports provide excellent coupling from the Amplifier chassis to the rigid supporting structure below. In installations where the integrity of the supporting structure is poor, the Amplifier chassis can be loosely coupled to the supporting structure via the compliant isolation interface supports. This will help attenuate the transfer of spurious energy from the supporting structure into the Amplifier chassis. Note: Another installation option, when incorporating the optional Battery Power Source, utilizes its chassis as a stable, high mass structural support for the Amplifier chassis. In this configuration, the Battery Power Source chassis is rigidly coupled to the supporting structure via the spiked coupling interface supports and the Amplifier is placed directly above the Battery Power Source and isolated via the compliant isolation interface supports. If desired, a coin may be placed directly under the point of the spiked coupling support to prevent damage to various surfaces (i. e. hardwood floors). Rear Panel Power Connections Important: Please strictly follow the steps in order as outlined below before operating your Model 2 Amplifier. 1 Verify that the supplied connector jumper and cover are installed correctly to the JUMPER/BPS-2 CONNECTOR. This connector jumper can serve as an interlock to prevent unauthorized operation of the amplifier when not in place. When using the companion BPS-2 (Battery Power Source), this connector jumper must be removed and the BPS-2 DC power cable must be installed in its place. Verify that the VOLTS 50/60 Hz INPUT identified on the rear panel corresponds to the AC mains voltage of your service area. Install the AC power cable between the Amplifier and an active AC mains outlet. 2 3 Installation / Rear Panel Power Connections Signal Connections 1 4 3 2 3 Signal Connections The Model 2 amplifier offers unprecedented compatibility with associated audio components. When connecting or disconnecting speaker or interconnect cables, it is only necessary that the FRONT PANEL STANDBY/ POWER button be pressed to switch the amplifier to standby mode. The button will not be illuminated in this mode. 1 Remote 4 When installing the interconnect cables, a slight click may be heard when the XLR interconnect plugs are installed correctly and latched. The latch (located on the input connector and labeled PUSH) must be pressed to remove the XLR interconnect cable. When using RCA unbalanced interconnects from your preamplifier or other source component, install the supplied XLR/RCA adapters into both XLR input connectors. The Amplifier will still operate in the fully balanced (Differential ModeTM) configuration. Unscrew RIGHT CHANNEL OUTPUT and LEFT CHANNEL OUTPUT connectors and install the positive and negative loudspeaker cable spade terminals to the respective Amplifier OUTPUT. ALWAYS USE THE SUPPLIED SPEAKER TERMINAL HAND WRENCH WHEN CONNECTING OR DISCONNECTING LOUDSPEAKER CABLES. DO NOT OVERTIGHTEN THESE TERMINALS. A REMOTE connector (DIN 5-pin) is provided on the rear panel for remotely switching the Amplifier between operational and standby modes. The pin connections on this connector parallel the electrical contacts of the FRONT PANEL STANDBY/POWER button and lamp. An optional wired remote switch or infrared wireless remote sensor can be plugged into the REMOTE connector to facilitate this function. [. . . ] This condition requires that the driving source component (preamplifier) is equipped with balanced outputs and sufficient output current to properly drive the input of the Model 2 when the LOW INPUT IMPEDANCE option is selected. Therefore, most fault conditions which may occur during use will be indicated by the Model 2 reverting to a standby condition. JRDG = Jeff Rowland Design Group, Inc. Condition Cause Remedy FRONT PANEL STANDBY/POWER button lamp does not illuminate after pressing, although the Amplifier operates normally. Light bulb defective. Remove STANDBY/POWER button from front panel and replace bulb located under button. Use replacement bulb kit and instructions supplied by JRDG. FRONT PANEL STANDBY/POWER button lamp does not illuminate after pressing, and Amplifier does not operate normally. Incorrect power connections or AC MAINS CIRCUIT BREAKER on Amplifier rear panel is tripped. [. . . ]