32-2056 4-Channel Stereo Microphone Mixer Your RadioShack 4-Channel Stereo Microphone Mixer is a sophisticated control center. It enables you to mix and add sound from up to four microphones or two audio input sources, such as a CD player, tuner, or cassette player. It is ruggedly constructed for home or professional use. Thank you for purchasing your 4-Channel Stereo Microphone Mixer from RadioShack.
The Basics contents Important Safety Instructions .................... 3 setting up your mixer ................................. 6 installing batteries ...............................................................6 using AC power ..................................................................6 presetting the mixer ...........................................................7 connections ............................................... 8 two stereo inputs ................................................
The Basics Important Safety Instructions Read Instructions — All safety and operating instructions should be read before the appliance is operated. Retain Instructions — The safety and operating instructions should be retained for future reference. Heed Warnings — Follow all warnings on the appliance and in the operating instructions. Cleaning — Unplug this appliance from the wall outlet before cleaning. Use only a damp cloth for cleaning. Do not use liquid or aerosol cleaners.
The Basics electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarized plug. Power-Cord Protection — Route power-supply cords so they are not likely to be walked on or pinched by items placed on or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.
The Basics * When the power-supply cord or plug is damaged. * If liquid has been spilled or objects have fallen into the appliance. * If the appliance has been exposed to rain or water. * If the appliance does not operate normally by following the operating instructions.
The Basics setting up your mixer installing batteries Your can power the mixer with a 9-volt battery (not supplied). 1. Remove the battery compartment cover. 2. Insert the battery. 3. Replace the cover. Replace the battery when BATTERY LOW lights. using AC power Your can power your mixer with a 9V AC adapter (not supplied). The recommended AC adapter supplies nine volts of power and delivers 300 milliamps. Its plug properly fits the mixer’s DC 9V jack and its center tip is set to negative (–).
The Basics presetting the mixer To prevent accidental audio mixing or channel overdrive, adjust the mixer’s controls as shown before you turn on power. Set MONO/STEREO to MONO. Turn POWER to OFF. Slide CHANNEL 1-4 to 0 (minimum). A sudden high output from the mixer could damage audio devices connected to the mixer, and could damage your hearing, especially if you use headphones.
The Basics connections Use shielded audio cables (available at RadioShack) for all input connections. The connected input source’s signals are routed to the corresponding channel on the mixer. For example, if you connect a CD player to AUX 1 L and AUX1 R, you will adjust CHANNEL 1 and CHANNEL 2 to mix and play audio. See “Operation” on Page 10. AUX 2 L and R AUX 1 L and R OUTPUT L and R two stereo inputs Connect the line level outputs from one device to the mixer’s AUX 1 INPUT R and L jacks.
The Basics four microphones MIC jacks Connect up to four microphones to the mixer’s MIC jacks (1-4). Each microphone signal is routed to the mixer’s corresponding channel. If you connect an audio device and a microphone so they are output to the same channel, the signals from both devices are mixed and controlled by the mixer’s corresponding channel control. For example, if you connect a microphone to MIC 1 and a CD player to AUX 1 L and R, signals from the microphone and CD player are routed to CHANNEL 1.
The Basics operation 1. Set POWER to ON to turn on the mixer. To avoid popping sounds, always turn on the mixer before you turn on the amplifier. 2. Turn on the output amplifier and leave its volume set to minimum. 3. Set the audio input source’s volume to minimum. Turn on the source, and set it to play (or continuously talk into the microphone). 4. Adjust the mixer’s corresponding CHANNEL 1, CHANNEL 2, CHANNEL 3, or CHANNEL 4 to 6-10.
The Basics voice-overs Talk into a microphone to mix pre-recorded music or sound from an audio input source with your voice. 1. Before talking, adjust CHANNEL (corresponding to the connected audio source) to the desired volume level. 2. As the music plays, talk into the microphone. Adjust the microphone and audio levels so you can hear yourself over the music. 3. If you pause and stop talking or singing, adjust CHANNEL to its original position (step 1). 4.
specifications Input Sensitivity: Mic ...................................................................................... 1.5 mV/600 ohm Line ...................................................................................... 150 mV/ 27k ohm Output Level at 10k Ohm Load .............................................................. 1.2V Input Overload: Mic ..................................................................................... more than 250 mV Line ........................................
