Behringer XENYX QX1222USB Mixer User Manual

1. Introduction

This manual provides essential information for the proper setup, operation, and maintenance of your Behringer XENYX QX1222USB mixer. Please read this manual thoroughly before using the device to ensure optimal performance and safety.

Figure 1.1: Top view of the Behringer XENYX QX1222USB mixer, showing all controls and inputs.

2. Important Safety Instructions

Always follow these basic safety precautions when operating electronic equipment:

• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with a dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
• Only use attachments/accessories specified by the manufacturer.
• Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

3. Key Features

The Behringer XENYX QX1222USB mixer offers a comprehensive set of features designed for professional audio mixing and recording:

• Premium ultra-low noise, high headroom mixer design.
• 4 state-of-the-art, phantom-powered XENYX Mic Preamps, comparable to stand-alone boutique preamps.
• 4 studio-grade compressors with super-easy "one-knob" functionality and control LED for professional vocal and instrumental sound.
• Ultra-high quality KLARK TEKNIK FX processor with LCD display, dual-parameters, Tap function, and storable user parameter settings.
• "Wireless-ready" for high-quality BEHRINGER digital wireless system (system not included).

Figure 3.1: Illustrates microphone input, highlighting the quality of XENYX Mic Preamps.

Figure 3.2: Visual representation of audio compression, demonstrating the effect of the built-in compressors.

Figure 3.3: Example of a Klark Teknik effects processor, representing the integrated multi-FX unit.

4. Setup Guide

4.1 Unpacking and Placement

Carefully unpack your mixer and inspect it for any signs of damage. Place the mixer on a stable, flat surface, ensuring adequate ventilation around the unit. Avoid placing it near heat sources or in direct sunlight.

4.2 Power Connection

Connect the supplied power cable to the mixer's power inlet and then to a suitable AC power outlet. Ensure the power switch is in the OFF position before connecting. The mixer also features a separate phantom power switch for condenser microphones.

Figure 4.1: Rear panel connections, including power input and USB interface.

4.3 Audio Connections

Connect your microphones, instruments, and other audio sources to the appropriate input channels. Use XLR cables for microphones and 1/4-inch TRS/TS cables for line-level instruments. Connect your main output to your amplifier or powered speakers using XLR or 1/4-inch cables.

4.4 USB Audio Interface Connection

To use the built-in USB audio interface, connect a USB cable from the mixer's USB port to your computer. Install any necessary drivers or software as prompted by your operating system or as specified by Behringer's support website.

Figure 4.2: USB interface logo, indicating connectivity for recording and playback.

5. Operating Instructions

5.1 Basic Signal Flow

Audio signals enter through the input channels, pass through the preamp, EQ, and compressor sections, then are routed to the main mix, auxiliary sends, or USB interface. The main mix is controlled by the MAIN MIX faders.

5.2 Channel Controls

• GAIN: Adjusts the input sensitivity for each channel.
• COMP: Controls the amount of compression applied to the channel.
• EQ: High, Mid, and Low controls to shape the tone of each channel.
• AUX/FX: Sends signal to external effects or monitor mixes.
• PAN/BAL: Positions the signal in the stereo field.
• MUTE: Silences the channel.
• LEVEL FADER: Adjusts the output level of the channel to the main mix.

5.3 Klark Teknik FX Processor

The integrated Klark Teknik FX processor offers a variety of effects. Use the PROGRAM knob to select an effect and the PARAMETER knob to adjust its settings. The TAP button can be used for tempo-based effects.

5.4 USB Audio Interface

The USB interface allows for stereo recording of the main mix to your computer and stereo playback from your computer through the mixer. Ensure your computer's audio settings are configured to use the XENYX QX1222USB as the input/output device.

Figure 5.1: Example of a Digital Audio Workstation (DAW) for recording and playback via USB.

6. Maintenance

6.1 Cleaning

Regularly clean the mixer's exterior with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or waxes, as these can damage the finish and controls. Do not allow liquids to enter the mixer.

6.2 Storage

When not in use for extended periods, store the mixer in a cool, dry place, away from direct sunlight and extreme temperatures. Consider covering the unit to protect it from dust.

7. Troubleshooting

If you encounter issues with your XENYX QX1222USB mixer, refer to the following common problems and solutions:

• No Power: Ensure the power cable is securely connected and the power switch is ON. Check the power outlet.
• No Sound Output: Verify all faders (channel, main mix) are up. Check input gain settings. Ensure speakers/amplifier are connected and powered on. Check monitor and FX send levels if applicable.
• Distorted Sound: Reduce input gain (GAIN knob) to prevent clipping. Check for proper impedance matching of connected devices.
• USB Audio Not Working: Confirm USB cable connection. Check computer's audio input/output settings. Ensure necessary drivers are installed.
• Effects Not Heard: Ensure FX send levels on channels are up, and the FX return level is up. Check the selected effect program.

For more complex issues, consult the Behringer support website or contact customer service.

8. Technical Specifications

9. Warranty and Support

For detailed warranty information and technical support, please visit the official Behringer website or contact your local Behringer distributor. Keep your purchase receipt as proof of purchase for any warranty claims.