User manual DOD FX68

[. . . ] Do not attempt to service the unit yourself. Refer all servicing to qualified personnel. Opening the chassis for any reason will void the manufacturer's warranty. If liquid is spilled on the unit, shut it off immediately and take it to a dealer for service. [. . . ] Gain - This is the input level for Channel 1 in Stereo mode, and is the master input level in Mono mode. Low Level - This knob controls the volume for the low frequency output in both Stereo and Mono modes. High Level - This knob controls the volume for the Channel 1 high frequency output in Stereo mode, and has no function in Mono mode. Frequency - This knob sets the crossover frequency separating the lows from the mids in Mono mode, and the lows from the highs for Channel 1 in Stereo mode. Range Switch - When depressed, this switch will multiply the selected crossover frequency by 10. The LED will light indicating that the markings on the Frequency knob (6) should be multiplied by 10. Channel 2 Gain - This is the input level for Channel 2 in Stereo mode. Low/Mid Level - This knob controls the volume for the Channel 2 low frequency output in Stereo mode, and the mid-range frequency output volume in Mono mode. High Level - This knob controls the volume for the Channel 2 high frequency output in Stereo mode, and the high frequency output in Mono mode. Frequency - This knob sets the crossover frequency separating the mids from the highs in Mono mode, and the lows from the highs for Channel 2 in Stereo mode. Range Switch - When depressed, this switch will multiply the selected crossover frequency by 10. The LED will light indicating that the markings on the Frequency knob (11) should be multiplied by 10. FX68 Crossover REAR PANEL WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE BACK. FOR BALANCED 1/4 " TRS PHONE PLUG CONNECTION - Wire the connectors as follows: Phone Plug tip ring sleeve Phone Plug tip sleeve Connection : high : low : ground Connection : high : ground FOR 1/4" MONO PHONE PLUG CONNECTION: Once the crossover has been installed and adjusted for the required cross frequencies, and levels, an optional security panel can be installed to keep unauthorized persons from changing settings. FX68 Crossover BI-AMP APPLICATIONS For bi amp applications, the FX68 must be set to the Stereo mode regardless of whether you are running in stereo or mono. The Stereo mode configures the FX68 as two individual channels, each providing a two way split. If you are running your sound system in stereo, both channels would be used: one for the left, and one for the right. If you are running in mono, only one of these channels would be used but the FX68 would still be set to Stereo mode in order to achieve a two way split. The following procedure outlines the steps for running a bi-amped system in mono. Begin these steps with the power to the FX68 turned off. Make sure the Mono Mode switch on the front panel of the FX68 is in the "out" position. The LED next to this switch should be off. Turn the Channel 1 Gain knob to 0 (fully counterclockwise). Set the Channel 1 Low and High Level knobs to - infinity (fully counterclockwise clockwise). Connect from the output of the mixer or source signal to the Channel 1 input of the FX68. [. . . ] The LED next to this switch should be on. Turn the Channel 1 Gain knob to 0 (fully counterclockwise). Set both Channel 1 and Channel 2 Low Level controls to the same level to ensure that both controls contribute the same amount of signal to the Low Frequency Sum output. MAINTENANCE AND SERVICING There are NO user serviceable parts inside the units. Opening the chassis will void the warranty. [. . . ]