User manual THETA DIGITAL ENTERPRISE

[. . . ] THETA DIGITAL C O R P O R A T I O N Enterprise Owner's Manual Vers 1. 01 PREFACE CONGRATULATIONS You have just acquired one of the most advanced and versatile components for the amplification of audio ever to have been developed. IMPORTANT Save all packaging in a dry place away from fire hazards. Your Enterprise is a precision electronic instrument and should be properly packaged any time shipment is made. In the unlikely event that you have to return your Enterprise to the factory or dealer for service or updating, the original packaging will best protect the unit from shipping damage. In order to achieve the fullest flexibility and enjoyment from your Enterprise, we at Theta recommend that you read this manual in full before connecting the unit to your audio system. [. . . ] Illuminates when the amplifier rises above the maximum operating temperature. The Enterprise should be powered off and cooled if this LED is lit. Used for connecting an external controller to the Enterprise to control and monitor its functions. See RJ45 RS232 connector. Figure 4 ­ Rear Panel Layout showing most options installed 12. When the rear panel STANDBY TRIGGER jack receives a 5-12 VDC pulse the Enterprise will change its mode from either standby to operate, or operate to standby, depending on its current state. It is recommended that this be left ON at all times during regular use with the exception of whenever cables are connected/disconnected or when the unit is not going to be used for an extended period of time. If necessary, replace with same type and rating only. Amplifier AC POWER INPUT. 6 OPERATION Before turning on the Enterprise, ensure that all precautions and warnings have been carefully reviewed and adhered to. Damage to the Enterprise caused by improper operation, wiring and/or ventilation will not be covered under warranty and Theta will not be liable for any consequential damage or loss. Connecting the Enterprise With the Enterprises' rear panel main power switch turned off, connect the signal outputs of the preamp/processor to either the single-ended or balanced input of the Enterprise. Connect the output to the input of the speaker that is intended to be driven. If the Enterprise has a second binding post output connector, this is to be connected to the second speaker input terminal. Please Note: The Enterprise is a balanced bridge amplifier, thus the negative speaker terminal is NOT a ground, and cannot be connected to a ground or a loudspeaker system with a common ground. Consult your speaker manufacturer to ensure that any speaker in your system that will be connected to the Enterprise does NOT have internal circuitry with a common ground. Connect a 12V pulse trigger source to the STANDBY trigger input of the Enterprise, if it is desired to be taken in and out of standby via another device. If the Enterprise's functionality is to be controlled from a remote controller via RS232, connect the RS232 cable between the Enterprise and the controller, using either the DB9 or RJ45 RS232 connector on the Enterprise. Setup and Operation Turn the output volume of the preamp/processor, or other source device, down all of the way. Turn on the MAIN POWER switch, located on the rear panel. When first turning on the rear panel power switch, the red STANDBY LED on the front panel will illuminate, indicating that the Enterprise is in standby mode. When in standby, the signal is muted and the output bias of the Enterprise is reduced to approximately 10 percent. Press the round standby button on the front panel to take the Enterprise out of standby. The STANDBY LED will turn from red to green. Slowly bring the output volume of the preamp/processor up to an audible level. Remote Triggers When the rear panel STANDBY trigger jack receives a 5-12 VDC pulse, the Enterprise will change its state from either standby to operate, or operate to standby, depending on what the current state is. RS232 RS232 is another option in the Enterprise. It can be installed at any time either at the factory or by an authorized Theta dealer. [. . . ] If the purchaser registers the unit with Theta by mailing in the warranty card, together with a copy of the bill of sale, within 14 days of the date of purchase, said purchaser will be registered for an extended service contract. The extended service contract extends the 90 days to a period of 5 years from the date of purchase by the original purchaser or no later than 7 years from the date of shipment to the authorized Theta dealer, whichever comes first. CONDITIONS This warranty is subject to the following conditions and limitations. The warranty is void and inapplicable if the product has been used or handled other than in accordance with the instructions in the owner's manual, abused or misused, damaged by accident or neglect or in being transported, or if the defect is due to the product being repaired or tampered with or modified by anyone other than Theta or an authorized Theta repair center. [. . . ]