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T6400 2-Card Power Amplifier Mainframe

The Model T6400 2-Card Power Amplifier Mainframe is designed to house, supply power to and cool up to two Titan series power amplifier cards. The mainframe is designed to mount in a 19-inch equipment rack/cabinet, taking up only 2 rack units (RUs) of space or 3.5” of vertical space. All cooling is back to front, so no additional vertical space is required in the rack for cooling. The mainframe has removable rack mounting ears, which may alternately be placed near the bottom of the mainframe for ease in mounting this unit on a wall, such as in a telephone closet, or on the back for rear rail mounting reinforcement.

There are several models of Titan Series power amplifier card that may be put into the mainframe including single channel or dual channel configurations, and loudspeaker driving options of 4 Ohm, 8 Ohm, 70 Volt distributed and 100 Volt distributed. Each amplifier card is capable of supplying 400 Watts of continuous power to its designed load type, which means there will be either 200 or 400 Watts per channel depending on the amplifier card type. So, a full frame is capable of driving 4 channels of 200 Watts or 800 Watts total.

The mainframe has connections for audio inputs and loudspeakers, as well as status monitoring outputs such as fan speed, amplifier (heatsink) temperature and amplifier status signals. The fan speed and temperature outputs are voltages whose values are proportional to speed or temperature, respectively. The mainframe also has individual input level controls for each of the possible 4 channels. The audio inputs on the back are made via plug-in lugless compression-type screw terminals. Also, the loudspeaker connections are made via larger scale terminals of the same type. The power amp cards lide in from the front and have individual power switches on the front along with power and signal presence LEDs.

Model T6400L is the part number for 120VAC power source, and Model T6400H is the part number for 240VAC power source.

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