MC2 Audio Preamp/Headphone Amplifier Information.

Mid Continent Controls offers an audio preamp/headphone amplifier that is designed for the less complicated entertainment system. Our amp accepts two stereo inputs and has two stereo outputs. The two outputs are selectable to either input independent of the other output. This allows the designer to utilize our component as a source selector and preamp for driving a cabin speaker amplifier. The outputs are designed to drive up to eight 32-ohm headphones per output.

A mono PA audio input is provided to allow passenger briefings over the headphone system. A chime mute input provides a 3 second interrupt of all output channels. Trim/gain potentiometers are provided which allow level adjustments of the PA and input sources. This provides source matching to prevent one source being louder than the next during switching operations.

The drawing to the right is in a "Scalable Vector Graphic" (SVG) Format:
Panning: Hold the alt key and click-and-drag with the mouse to pan an SVG image. When the scroll lock is enabled and Adobe SVG Viewer has the focus, the arrow keys may be used to pan the image.

Zooming: Hold the control key and click to zoom in at the mouse pointer location.
Hold the control key and click-and-drag to select a region to zoom into. Hold the control and shift keys and click to zoom out. You may also right click on the image for zoom commands in the menu. For more help, please click here.

User-Interactive Window

VOLTAGE SECTION:
Nominal Voltage ................................................................................... +28VDC
Operating Voltage ................................................................... +22 to +32.2VDC
Operating Current (nominal) ....................................................................... 200mA
Operating Current (maximum) ..................................................................... 500mA

AUDIO SECTION:
PA Audio Input ........................................... One @ 600ohm Impedance (Isolated)
Audio Inputs ......... Two Stereo @ 500mV - 2V p-p @ 10kohm Impedance (Isolated)
Audio Outputs ........................................................... Two Stereo @ 0 - 8.5V p-p

GENERAL:
Operating Temperature .................................... -40ºF. to +158ºF. / -40ºC to +70ºC
Operating Altitude ............................................................... 51,000ft. /15,544.8m Weight ....................................................................................... 8.0oz. / 226.8g
Dimensions (U.S. Standard) ................................ 3.93in.(W) x 5.00in.(L) x 1.17in.(H)
Dimensions (Metric) .............................. 99.82mm(W) x 127.0mm(L) x 29.71mm(H)

ORDER NUMBER ............................................................................... 102004-1