MX822 Eight Channel Stereo Mixer with Effects Loop USER'S GUIDE
IMPORTANT SAFETY INSTRUCTIONS - READ FIRST This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltages inside the enclosure that may be sufficient to constitute a risk of shock. This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Please read the manual. Read instructions Retain these safety and operating instructions for future reference. Heed all warnings printed here and on the equipment.
OVERVIEW The ART MX822 Eight Channel Stereo Mixer with Effects Loop is a versatile eight input rack mount mixer for studio, live sound or install use. Each input channel accepts a mono or stereo signal and provides independent level, pan and effects send controls. Convenient signal level monitoring is provided with signal and clip lights for each channel and five level metering with separate clip indicators for the main output channels.
CONNECTIONS Rear Panel Connections MIC INPUT Channel 1 may be used with either an unbalanced line level signal or a lower level balanced microphone signal, controlled by the CH 1 SOURCE SELECT switch on the front panel. A female XLR connector is provided If you choose to use a microphone in Channel 1. An additional 40 dB of gain is provided for use with low output level mics.
EFX BUS IN This connection provides a means of sharing an external effects processor between two MX822s. In essence, it allows the first mixer to connect directly to the AUX or effects buss of the second mixer. Using a dual 1/4" TS to single 1/4" TRS cable, connect the separate TS plug ends into the EFFECTS SEND outputs of the first mixer and connect the TRS plug end into the EFX BUS IN of the second mixer (tip is left and ring is right).
OPERATION Front Panel Controls Channel Controls (1-8) CH 1 SOURCE SELECT This pushbutton switch selects whether the Channel 1 signal comes from the 1/4" line jacks or the XLR microphone jack. In the LINE (out) position, the line signal is selected. Pushing the button in (MIC position) lights the switch green and selects the microphone signal. LEVEL Each of these controls adjusts the level of the associated input channel and determines its contribution to the overall mix.
Headphone LEVEL This control adjusts the signal level sent to the headphone jack. Note that the headphone output level is not affected by the setting of the Master LEVEL control. EFX RETURN This control adjusts the level of the signal sent back from an external effects processor, if connected, and determines its contribution to the overall mix. POWER Switch Controls the application of AC power to the MX822. When the switch is pushed in at the top (ON position), an indicator lights, showing power is applied.
BLOCK DIAGRAM 8
WARRANTY INFORMATION Limited Warranty Applied Research and Technology will provide warranty and service for this unit in accordance with the following warrants: Applied Research and Technology, (ART) warrants to the original purchaser that this product and the components thereof will be free from defects in workmanship and materials for a period of three years from the date of purchase.
SERVICE The following information is provided in the unlikely event that your unit requires service. 1. Be sure that the unit is the cause of the problem. Check to make sure that the unit has power supplied, that all cables are connected correctly, and that the cables themselves are in working condition. You may want to consult with your dealer for assistance in troubleshooting or testing your particular configuration. 2. If you believe that the ART unit is at fault, go to www.artproaudio.com.
SPECIFICATIONS Input Connections XLR female balanced (MIC) 1/4" TS unbalanced (CH 1-8, Effects Return) 1/4" TRS stereo unbalanced (EFX BUS IN, Main Expand) Output Connections XLR male balanced (Main) 1/4" TS unbalanced (Effects Send) 1/4" TRS stereo unbalanced (Monitor, Main Expand, Headphone) Input Impedance 1k Ohms (MIC), 5k Ohms (CH 1-8) Output Impedance <1k Ohms (Main, balanced), <25 Ohms (Headphone) Frequency Response 20 Hz – 20 kHz (+0, -1 dB) (CH 1-8 in, Main out) THD <0.
www.artproaudio.com E-mail: cserve@artproaudio.com © 2012 Applied Research & Technology MX822 822-5004-101 V1.
