Knoll installation instructions GRS44 is controlled by RS232 commands

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Introduction: Thank you for your purchase of a Knoll GRS44 8 channel controller amplifier and congratulations on your choice. The GRS44 features four deluxe digital volume controlled stereo amplifiers with individual four source selection. This is Knoll's fourth generation of multi-channel, high- quality power amplifiers. The GRS44 is designed to meet the amplifier needs of custom installed multi-zone systems where high quality sound is a specific requirement.

Each of the four zones or rooms can select any of the four inputs, with individual volume control, bass and treble. Only the power button is located on the front panel.

The GRS44 is controlled by RS232 commands.

Four input source selection. Each of the four stereo amplifiers is provided with four input source selection. Selection, volume level, bass and treble is made using RS232 commands. Rooms can have different source selections, volumes, etc.

Four internal 80 position stereo volume controls.

GRS44 consists of a total of 8 power

amplifiers in one 3-1/2" high enclosure (two rack spaces). Each power amplifier channel can deliver 30 watts RMS with peaks of 60 watts. Because of its unique design the GRS44 delivers exceptional value.

GRS44 amplifier channel is

individually and fully protected against low impedance, overheating, overloading, over voltage and under voltage. The protection circuitry automatically restores the amplifier channel as soon as its parameter returns to the safe operating area.

and treble adjustment. Each channel features adjustments so installers can preset the room for speaker differences and listener preferences.

1 has line level outputs so more powerful power amplifiers can be connected to this output. The line level output is controlled as to volume, bass, treble and source selection.