Jeff Rowland Design Group Model 2 manual

Installation

Rear Panel Power Connections

Locate the Amplifier as close as possible to its final installation point. Allow access to the rear panel for making connections.

The Model 2 Amplifier is convection cooled, eliminating the need for fan or forced air cooling. When operating, the chassis should have at least two (2) inches of air space around the heatsink areas. Multiple chassis can be stacked vertically thus facilitating an upward flow of warm air currents throughout the vertical heatsink fin areas. This upward flow must not be impeded or recirculated around the chassis if proper cooling is to be maintained.

Supplied with your Model 2 Amplifier are two different support systems. An assessment of the supporting structure should be made to determine the proper system for the Amplifier. Both spiked and compliant interface supports can be easily installed within the indentations on each of the four chassis pods located underneath the corners of the chassis. These system options permit the coupling or decoupling of the Amplifier chassis to the supporting structure.

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).

Important: Please strictly follow the steps in order as outlined below before operating your Model 2 Amplifier.

1Verify 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.

2Verify that the VOLTS 50/60 Hz INPUT identified on the rear panel corresponds to the AC mains voltage of your service area.

3Install the AC power cable between the Amplifier and an active AC mains outlet.

Installation / Rear Panel Power Connections

Model 2 specifications

The Jeff Rowland Design Group Model 2 is a remarkable preamplifier that stands out in the realm of high-end audio equipment. Known for its exquisite craftsmanship and advanced technologies, the Model 2 has garnered a loyal following among audiophiles and music lovers who appreciate both aesthetics and sound quality.

One of the standout features of the Model 2 is its distinctive design. The chassis is constructed from high-grade aluminum, which not only adds to the aesthetic appeal but also provides a robust structure that minimizes resonance and vibration. This meticulous attention to detail extends to the user interface, where every knob and switch is thoughtfully designed for durability and ease of use. The overall finish is elegant, making the Model 2 a stunning centerpiece in any audio system.

Technologically, the Model 2 employs a fully balanced signal path, which is critical for reducing noise and distortion. This design choice ensures that the audio signal remains pure and maintains its integrity throughout the amplification process. The preamplifier is equipped with high-performance capacitors and class-A circuitry that contribute to its ability to deliver a wide dynamic range and exceptional detail, allowing listeners to experience music as it was intended by the artists.

Another significant characteristic of the Model 2 is its versatility. It includes multiple input options, accommodating a wide range of audio sources, from vinyl turntables to digital streaming devices. The preamplifier also features a high-quality headphone output, allowing users to enjoy their favorite music through headphones without compromising sound quality.

Additionally, the Model 2 incorporates advanced technology for remote control functionality, providing convenience without sacrificing performance. The remote allows users to adjust volume levels and switch between sources effortlessly, enhancing the listening experience.

In summary, the Jeff Rowland Design Group Model 2 is a high-end preamplifier that boasts exceptional build quality, a fully balanced signal path, and versatile connectivity options. Its attention to detail and advanced technologies make it a desirable choice for those who demand superior audio performance. Whether used in a dedicated listening room or as part of a larger audio system, the Model 2 elevates the experience of music to a new level of excellence.