Behringer XENYX X1204USB Premium 12-Input 2/2-Bus Mixer User Manual

1. Introduction

This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your Behringer XENYX X1204USB Premium 12-Input 2/2-Bus Mixer. The XENYX X1204USB is a professional-grade audio mixer designed for versatile sound production, featuring XENYX mic preamps, "British" style EQ, one-knob compressors, and an integrated USB audio interface for seamless computer connectivity. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.

Behringer XENYX X1204USB Mixer with included bag and XLR cable

Figure 1.1: The Behringer XENYX X1204USB mixer, shown with its included carrying bag and XLR cable. This bundle provides essential components for immediate use.

2. Key Features

The Behringer XENYX X1204USB mixer is equipped with a range of features designed for high-quality audio mixing and recording:

Superior Sound Quality: Features XENYX mic preamps for pristine audio, offering a dynamic range and low noise suitable for professional recordings and live performances.
Versatile Input Channels: Includes 4 XLR mic inputs and 6 line inputs, accommodating a wide array of audio sources such as microphones, instruments, and other audio devices.
Precise EQ Control: Each channel is equipped with a 3-band EQ, allowing for detailed adjustments and tonal shaping to achieve a balanced and clear mix.
Integrated USB Interface: Provides seamless audio recording and playback capabilities via a built-in USB interface, compatible with Mac, Windows, and Linux operating systems. Ideal for home studios and digital audio workstations.
One-Knob Compressors: Four innovative, easy-to-use one-knob compressors offer ultimate control over the dynamics of your sound, ensuring a clear and balanced output.
Aux Sends and Returns: Each mono channel features two aux sends for individual channel routing to stage monitors or external effects, complemented by two stereo aux returns for expanded connectivity.
Included Accessories: Comes bundled with a rack mount kit, EnergyXT2.5 software, a mixer bag, and a 25' XLR cable, providing everything needed for immediate setup and use.

Top-down view of the Behringer XENYX X1204USB mixer's control surface

Figure 2.1: A detailed view of the Behringer XENYX X1204USB mixer's control surface, highlighting the various knobs, faders, and input/output sections.

3. Setup Guide

Follow these steps to set up your Behringer XENYX X1204USB mixer:

Unpacking: Carefully remove all components from the packaging. Verify that all items listed in the "Included" section are present.
Placement: Place the mixer on a stable, flat surface. Ensure adequate ventilation around the unit. If using the rack mount kit, follow the instructions provided with the kit for secure installation.
Power Connection: Connect the supplied power adapter to the mixer's power input and then to a suitable AC power outlet. Ensure the mixer's power switch is in the OFF position before connecting.
Input Connections:
- For microphones, use XLR cables to connect to the MIC IN jacks (Channels 1-4).
- For line-level instruments or devices, use 1/4" TRS or TS cables to connect to the LINE IN jacks (Channels 1-12).
- For stereo sources, use the dedicated stereo line inputs (Channels 5/6, 7/8, 9/10, 11/12).
Output Connections:
- Connect your main speakers or amplifier to the MAIN OUT (XLR or 1/4" TRS) jacks.
- For monitoring, connect headphones to the PHONES jack.
- Utilize AUX SEND and FX SEND for external effects processors or stage monitors.
USB Connection: Connect the mixer to your computer using a USB cable. The mixer will function as an audio interface, allowing for recording and playback. Install any necessary drivers or software (e.g., EnergyXT2.5) as prompted by your operating system or Behringer's website.
Initial Power On: Once all connections are secure, switch the mixer's power to the ON position.

Angled view of the Behringer XENYX X1204USB mixer, showing input and output ports

Figure 3.1: An angled view of the mixer, illustrating the various input and output ports on the top and rear panels, crucial for proper setup.

4. Operating Instructions

This section outlines the basic operation of your XENYX X1204USB mixer.

4.1. Channel Control

Gain Control: Adjust the GAIN knob at the top of each channel strip to set the input level. Aim for the signal to peak around 0 dB on the level meters without clipping.
Compressor: For channels 1-4, use the COMP knob to apply compression. Turn clockwise to increase the compression effect, which helps to smooth out dynamic range.
Equalizer (EQ): Use the HIGH, MID, and LOW knobs to shape the tone of each channel.
Aux Sends: The AUX 1 and AUX 2/FX knobs control the amount of signal sent to the auxiliary outputs, useful for monitor mixes or external effects.
Pan/Balance: The PAN (mono channels) or BAL (stereo channels) knob positions the channel's signal within the stereo field.
Mute/Alt 3-4: The MUTE button silences the channel. When engaged, the signal can be routed to the ALT 3-4 bus instead of the main mix.
Solo/PFL: The SOLO button allows you to monitor the channel's signal independently through headphones or the control room output without affecting the main mix.
Channel Fader: Adjust the vertical fader to control the overall volume of the channel in the main mix.

4.2. Main Mix Control

Main Mix Faders: The MAIN MIX faders control the overall output volume of the stereo main mix.
Level Meters: Monitor the output level using the LED meters. Adjust main mix faders to keep levels in the optimal range, avoiding clipping (red LEDs).
Phones/Control Room: Use the PHONES/CTRL RM knob to adjust the volume for headphones and control room monitors.
USB Routing: The USB interface allows for sending the main mix to your computer for recording, and playing back audio from your computer through the mixer. Refer to your computer's audio settings and the mixer's specific USB routing options.

Close-up view of the Behringer XENYX X1204USB mixer's faders and main control section

Figure 4.1: A close-up of the mixer's fader section and main output controls, illustrating the tactile interface for adjusting channel and master volumes.

5. Maintenance

Proper maintenance ensures the longevity and optimal performance of your Behringer XENYX X1204USB mixer.

Cleaning:
- Always disconnect the power before cleaning.
- Use a soft, dry, lint-free cloth to wipe down the exterior surfaces.
- For stubborn dirt, a slightly damp cloth with mild soap can be used, followed by a dry cloth. Avoid abrasive cleaners, solvents, or waxes.
- Use a soft brush or compressed air to clean dust from faders, knobs, and ventilation grilles.
Storage:
- When not in use, store the mixer in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
- Protect the mixer from dust and spills, ideally by using the included mixer bag or a dust cover.
Cable Management: Ensure all cables are neatly organized and not under strain. Avoid sharp bends or kinks in cables, especially the power cord.
Ventilation: Do not block the ventilation openings. Ensure proper airflow to prevent overheating.

Black carrying bag for the Behringer XENYX X1204USB mixer

Figure 5.1: The included mixer bag, designed to protect the Behringer XENYX X1204USB from dust and physical damage during storage and transport.

6. Troubleshooting

This section provides solutions to common issues you might encounter with your Behringer XENYX X1204USB mixer.

Problem	Possible Cause	Solution
No sound output from main mix.	Main mix faders are down. Speakers/amplifier not connected or powered on. Input channels muted or faders down. Incorrect input/output routing.	Raise MAIN MIX faders. Check speaker/amplifier connections and power. Ensure channel MUTE buttons are disengaged and channel faders are up. Verify correct cable connections and routing.
No signal from a specific input channel.	Input source not active or connected. Channel GAIN too low. Channel MUTE engaged. Faulty cable.	Check input source (microphone, instrument) and its connection. Increase channel GAIN. Disengage channel MUTE. Test with a different cable.
Hum or noise in the audio.	Ground loop. Unbalanced cables over long distances. Interference from other electronic devices. High GAIN settings.	Use balanced cables (XLR, TRS) where possible. Try connecting all audio equipment to the same power outlet. Move mixer away from power supplies, monitors, or other noisy electronics. Reduce GAIN and increase fader levels if possible.
USB audio not recognized by computer.	Incorrect USB cable or port. Missing or outdated drivers. Incorrect audio settings on computer.	Try a different USB cable or port. Visit Behringer's website for the latest drivers and install them. Check your computer's sound settings to ensure the mixer is selected as the input/output device.

Coiled 25-foot XLR cable, included with the mixer bundle

Figure 6.1: The 25-foot XLR cable, a common component in audio setups, which should be checked for integrity during troubleshooting.

7. Technical Specifications

Below are the key technical specifications for the Behringer XENYX X1204USB mixer:

Feature	Detail
Brand	Behringer
Model	XENYX X1204USB
Number of Channels	12
Item Weight	14.47 pounds (6.56 kg)
Product Dimensions (L x W x H)	15.5 x 14 x 5.9 inches (39.37 x 35.56 x 14.99 cm)
Power Source	Corded Electric
Connectivity Technology	Auxiliary, USB
Mic Preamps	XENYX Mic Preamps
Compressors	4 One-Knob Compressors
EQ	"British" style 3-band EQ on each channel
USB Interface	Bi-directional audio transfer, Mac/Windows/Linux compatible

8. Warranty and Support

Behringer products are manufactured to high quality standards. For detailed information regarding the warranty period and terms for your XENYX X1204USB mixer, please refer to the warranty card included with your product or visit the official Behringer website.

For technical support, service, or to download the latest drivers and software, please visit the Behringer support page: www.behringer.com/support.

When contacting support, please have your product model (X1204USB) and serial number ready.

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Behringer X1204USB