4-Channel Stereo Microphone Mixer (320-1106) Preparation Faxback Doc. # 18283 PRESETTING THE CONTROLS Presetting the Mixer WARNING: A sudden high output from the mixer could damage the audio devices connected to the mixer's output and your hearing, especially if you use headphones. To avoid accidentally overdriving a channel or prematurely mixing in an audio input, adjust the mixer's control to these settings before you turn on power. Control Setting POWER OFF CHANNEL 1, 2, 3, 4 0 (Minimum) MODE STEREO/MONO MONO Presetting the Audio Devices To avoid sudden and unusable outputs from the audio devices connected to the mixer's output, adjust the audio device's volume controls to minimum and set their power controls to off before you connect the mixer's output jacks to the audio devices' input jacks. MAKING THE CONNECTIONS You can connect the line level outputs of several input sources (such as a CD player, a cassette player, the audio output of a VCR, a tuner, or other input source) to the mixer. The LINE input jacks let you connect up to two stereo sources. The MIC input jacks let you connect up to four microphones. NOTE: Use shielded audio cables for all connections. Connecting Two Stereo Inputs To connect two stereo sources, use the two pairs of LEFT and RIGHT phono input jacks (for example, use jacks 1 (left) and 2 (right) for a CD player, and jacks 3 (left) and 4 (right) for a cassette player). The signals for each of these sources are routed to the corresponding output channel. Connecting up to Four Stereo Sources as Monaural Inputs To connect up to four stereo sources as monaural inputs, using shielded Y-adapters at the sources' left and right outputs, connect a separate stereo source to each channel (jacks 1 through 4). The signals for each of these sources are routed to the corresponding output channel. Connecting up to Four Monaural Inputs To connect up to four monaural sources, use jacks 1 through 4 to connect a separate monaural source to each channel. The signals of each of these sources are routed to the corresponding output channel. Connecting Two Monaural Sources as Stereo Inputs To connect two monaural sources as two stereo inputs, using shielded Y-adapters at the sources' monaural outputs, connect the other ends to the mixer's LEFT and RIGHT channels (for example, connect one monaural source to jacks 1 and 2, and a second monaural source to jacks 3 and 4). The signals for each of these sources are routed to the corresponding output channel. Connecting up to Four Microphones To connect up to four microphones, use jacks 1 through 4. The signals for each of these sources are routed to the corresponding output channel. NOTES: If you connect both LINE and MIC signal sources to the same channel, both signals are mixed and their levels are controlled by the corresponding channel's fader control. Connecting the Outputs To play the mixer's output signal through your speaker system (for events such as parties, dances, conferences, etc.), connect one end of an audio patch cord (not supplied) to the mixer's OUTPUT LEFT and RIGHT jacks and the other end of the audio patch cord to your receiver/amplifier's microphone input jacks. To record the mixer's output signal, connect one end of an audio patch cord (not supplied) to the mixer's OUTPUT LEFT and RIGHT jacks and the other end of the audio patch cord to your tape deck's microphone input jacks. NOTES: If you connect a PA system, attach a ground wire between its ground terminal (if it has one) and the mixer's GND terminal. If you have a monaural PA system or tape deck, use only one OUTPUT jack on the mixer and set the mixer's MODE STEREO/MONO switch to MONO. (CS 11/9/95)