ART MX622 Six Channel Stereo Mixer
Six Channel Stereo Mixer with EQ and Effects Loop
USER'S MANUAL
Brand: Applied Research and Technology (ART)
IMPORTANT SAFETY INSTRUCTIONS - READ FIRST
[Warning Symbol] 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.
[Information Symbol] 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. Follow the operating instructions printed in this user guide.
Do not open
There are no user serviceable parts inside. Refer any service work to qualified technical personnel only.
Power sources
Only connect the unit to mains power of the type described in this user guide or marked on the rear panel. The power source must provide a good ground connection.
Power cord
Use the power cord with sealed mains plug appropriate for your local main supply as provided with the equipment. If the provided plug does not fit into your outlet, consult your service agent. Route the power cord so that it is not likely to be walked on, stretched, or pinched by items placed upon or against it.
Grounding
Do not defeat the grounding and polarization means of the power cord plug. Do not remove or tamper with the ground connection on the power cord.
Moisture
To reduce the risk of fire or electrical shock, do not expose the unit to rain, moisture, or use in damp or wet conditions. Do not place containers of liquid on it, which may spill into any openings.
Heat
Do not locate the unit in a place close to excessive heat or direct sunlight, as this could be a fire hazard. Locate the unit away from any equipment that produces heat, such as power supplies, power amplifiers, and heaters.
Environment
Protect from excessive dirt, dust, heat, and vibration when operating and storing. Avoid tobacco ash, drink spillage, and smoke, especially that associated with smoke machines.
Handling
Protect the controls from damage during transit. Use adequate padding if you need to ship the unit. To avoid injury to yourself or damage to the equipment, take care when lifting, moving, or carrying the unit.
Servicing
Switch off the equipment and unplug the power cord immediately if it is exposed to moisture, spilled liquid, or the power cord or plug becomes damaged during a lightning storm, or if smoke odor or noise is noted. Refer servicing to qualified technical personnel only.
Installation
Install the unit in accordance with the instructions printed in the user guide.
INTRODUCTION
The ART MX622 Six Channel Stereo Mixer with EQ and Effects Loop is a versatile mixer combining three balanced microphone or line level inputs with three stereo line inputs into a single stereo line level mix. Each mono balanced XLR input includes fully variable Input gain, Mic/Line switch, Clip indicator, and selectable 15 Volt Phantom power. An external effects loop section provides a mono Send from the three Mic/Line channels to external equipment and stereo Returns with Effects Level and In/Out switch. Three stereo line level inputs are also provided via RCA type jacks with separate Level controls for each stereo pair. Stereo Record output RCA jacks provide full-level signal of the entire mix at all times. Main outputs are stereo balanced 1/4-inch TRS with Master Level and full range Bass/Treble equalization. The built-in power supply and single high 19" rack mount format allows for easy installation and reliable operation.
Features:
- Three balanced XLR inputs with separate Mic/Line switch, Level control, and Clip Indicator.
- Three pairs of RCA stereo inputs with separate Level controls.
- Selectable 15 Volt Phantom power for each Mic channel.
- Balanced 1/4-inch TRS Main outputs with Master Level control.
- Versatile Bass and Treble equalization on Main outputs.
- Stereo Record Out RCA jacks.
- Effects Loop with Effects Level control and In/Out switch.
- 1/4-inch Effects Send with stereo Returns.
OPERATION
Rear Panel Description: The rear panel features various input and output connections:
- AC INPUT: IEC style power connector.
- EFX LOOP SEND: Mono send for external effects units.
- EFX LOOP LEFT RETURN / RIGHT RETURN: Stereo returns for effects.
- INPUT 3 / INPUT 2 / INPUT 1: Balanced XLR inputs with Mic/Line, Level, and Phantom Power switches.
- RECORD OUT: RCA jacks for stereo recording output.
- MAIN OUTPUT (BALANCED): 1/4-inch TRS jacks for main stereo outputs.
- CE Mark, Fuse Holder.
Operating Instructions:
- Verify proper voltage selection on the IEC style power connector for your location. Connect the AC cord to a grounded AC outlet.
- Connect Mics or balanced Line inputs to the XLR sockets. For Mic channels requiring phantom power (for condenser mics), move the DIP switch to the down position to activate phantom power for each XLR input. Set each Mic/Line switch as required for the type of input signal level.
- Connect stereo signal sources (CD, tape/MP3 player, etc.) to input channels 1, 2, and 3 using RCA type unbalanced cables.
- To patch-in effects, use three shielded TS (unbalanced) cables. Connect the Efx Loop Send jack to the input of the effects unit and the unit's stereo outputs to the Left and Right Efx Loop Return jacks. Once the MX622 is connected to the main mixer, tape deck, computer interface, or power amplifier, apply a test signal. Set the Efx Loop In/Out switch on the front panel to the IN position and adjust the Efx Level control for the desired effects intensity.
- The Left and Right Efx Loop Return jacks may alternately be used as a stereo line input with its own level control and In/Out switch.
- Connect either the 1/4-inch balanced Left and Right Main Output jacks or the RCA Record Out jacks to the input of the mixer, tape deck, computer, or power amplifier using appropriate balanced or unbalanced, shielded cables.
- Switch on the power and set the Master Level to the 1/2 way setting. Adjust the input channel Level controls as required for the best mix and level, while checking the Mic/Line channel CLIP LEDs for activity. Turn down any channel with CLIP activity until the LED is on during extreme peaks only.
- Adjust BASS and TREBLE controls for the desired balance. The mid position provides a flat frequency response.
- Re-adjust the Master Level as required for the best signal level.
WARRANTY INFORMATION
Limited Warranty (USA only)
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. Applied Research and Technology will, without charge, repair or replace, at its option, defective product or component parts upon prepaid delivery to the factory service department or authorized service center, accompanied by proof of purchase date in the form of a valid sales receipt.
Online Registration
We recommend that you register your product online to ensure prompt warranty repair servicing on any repair issues. Please go to www.artproaudio.com. Select “Support”, then "Product Registration". Then input your information here.
Exclusions
This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs. This warranty is void if the serial number is altered, defaced, or removed.
ART reserves the right to make changes in design or make additions to or improvements upon this product without any obligation to install the same on products previously manufactured.
ART shall not be liable for any consequential damages, including without limitation damages resulting from loss of use. Some states do not allow limitations of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific rights and you may have other rights, which vary from state to state.
For units purchased outside the United States, an authorized distributor of Applied Research and Technology will provide service.
SERVICE
The following information is provided in the unlikely event that your unit requires service:
- Be sure that the unit is the cause of the problem. Check to make sure the unit has power, all cables are connected correctly, and the cables themselves are in working condition. You may want to consult with your dealer for assistance in troubleshooting or testing your particular configuration.
- If you believe that the ART unit is at fault, go to www.artproaudio.com.
- Select "Support", then "Return Authorization Request" to request a return authorization number.
- If you are returning the unit for service, pack the unit in its original carton or a reasonable substitute. The original packaging may not be suitable as a shipping carton, so consider putting the packaged unit in another box for shipping. Print the RA number clearly on the outside of the shipping box. Print your return shipping address on the outside of the box.
- Include, with your unit, a note with the RA number and your contact information, including a return shipping address (we cannot ship to a P.O. box) and a daytime phone number, and a description of the problem, preferably attached to the top of the unit. Also include a copy of your purchase receipt.
For your reference:
Date of purchase: __________________________________
Purchased from: __________________________________
Serial Number: __________________________________
SPECIFICATIONS
| Parameter | Specification |
|---|---|
| Input Connections | XLR-F balanced (3), 1/4-inch unbalanced (2), RCA (6) |
| Output Connections | 1/4-inch TRS balanced (2), 1/4-inch unbalanced (1), RCA (2) |
| Input Impedance | 600/22K Ohms Mic/Line XLR inputs, 10K Ohms RCA inputs, 22K Ohms 1/4-inch Efx Returns |
| Output Impedance | 50 Ohms 1/4-inch Main outputs, 1K Ohms RCA Record outputs, 100 Ohms Efx output |
| Maximum Input Level | -10dBu/+20dBu Mic/Line XLR inputs, +20dBu RCA line inputs, +20dBu Efx inputs |
| Maximum Output Level | +24dBu balanced Main outputs, +20dBu RCA Record outputs, +20dBu Efx output |
| Phantom Power | +15 Volts DC, regulated low noise |
| Maximum Gain | 56dB/26dB Mic/Line, 26dB RCA inputs |
| Signal to Noise Ratio | >90dB typical |
| THD | <1% typical |
| Equalizer Range | +/-12dB @ 100Hz & 10KHz |
| Power Requirements | USA: 105 to 125 VAC / 50-60Hz, 15 Watts typical |
| Dimensions (HWD) | 1.75-inch x 19.0-inch x 6.0-inch (44.5mm x 483mm x 152mm) |
| Weight | 6.2 lbs. (2.8kg) |
Note: 0 dBu = 0.775Vrms
ART maintains a policy of constant product improvement. ART reserves the right to make changes in design, or make additions to, or improvements upon, this product without any obligation to install the same on products previously manufactured. Therefore, specifications are subject to change without notice.
