Behringer EURORACK PRO RX1202FX Premium 12-Input Mic/Line Rack Mixer User Manual

1. Introduction

The Behringer EURORACK PRO RX1202FX is a premium 12-input mic/line rack mixer designed for professional audio applications. It features ultra-low noise ULN design, high headroom, and an ultra-transparent audio path. This mixer includes premium mic preamplifiers and a 24-bit multi-FX processor, making it suitable for various live sound, studio, and installation environments. This manual provides essential information for the safe and efficient operation of your RX1202FX mixer.

2. Important Safety Instructions

• Read these instructions thoroughly before operating the unit.
• Keep these instructions for future reference.
• Heed all warnings on the appliance and in the operating 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.
• 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. Product Overview

The EURORACK PRO RX1202FX is a versatile rack-mountable mixer. Familiarize yourself with its controls and connections.

3.1 Front Panel Controls

The front panel provides access to all input channel controls, the main mix section, and the integrated effects processor.

Figure 1: Front view of the Behringer EURORACK PRO RX1202FX mixer, showing all 12 input channels, main mix section, and effects processor. Each channel features gain, high and low EQ, pan, monitor send, and FX send controls, along with a level fader and clip LED.

• GAIN Control: Adjusts the input sensitivity for each channel.
• CLIP LED: Illuminates when the input signal is too high, indicating potential clipping.
• HIGH EQ: Adjusts the treble frequencies for each channel.
• LOW EQ: Adjusts the bass frequencies for each channel.
• MON Control: Sends the channel signal to the monitor output.
• FX Control: Sends the channel signal to the internal effects processor.
• PAN Control: Positions the channel signal within the stereo field (left to right).
• Channel Faders: Adjust the individual volume level of each input channel.
• FX Section: Includes a program selector, level control, and FX to Main send.
• MAIN MIX Faders: Control the overall output level of the main stereo mix.
• PHONES/CONTROL ROOM: Output for headphones and control room monitors with dedicated level control.
• CD/TAPE TO MIX/TO CTRL: Buttons to route the CD/Tape input to the main mix or control room/phones output.

3.2 Rear Panel Connections

The rear panel houses all audio input and output connectors, as well as the power input.

Figure 2: Angled view of the Behringer EURORACK PRO RX1202FX rack mixer, highlighting its compact design and control layout. This perspective also shows the rack-mount ears and the side profile of the unit.

• MIC/LINE Inputs (Channels 1-8): XLR connectors for microphones and 1/4" TRS/TS jacks for line-level signals.
• LINE Inputs (Channels 9/10, 11/12): 1/4" TRS/TS jacks for stereo line-level signals.
• MAIN OUT (L/R): Gold-plated XLR connectors for balanced main stereo output.
• MON SEND: 1/4" TS jack for sending the monitor mix to external monitor speakers or amplifiers.
• FX SEND: 1/4" TS jack for sending the effects signal to external effects processors.
• FX RETURN (L/R): 1/4" TS jacks for returning processed audio from external effects processors.
• CD/TAPE IN (L/R): RCA connectors for connecting external playback devices (e.g., CD player, tape deck).
• CD/TAPE OUT (L/R): RCA connectors for connecting to recording devices.
• POWER INPUT: Connector for the AC power cable.

4. Setup

4.1 Unpacking and Placement

Carefully unpack the mixer and inspect it for any signs of damage. The RX1202FX is designed for standard 19-inch rack mounting. Ensure adequate ventilation around the unit to prevent overheating.

4.2 Power Connection

Connect the supplied AC power cable to the POWER INPUT on the rear panel and then to a suitable power outlet. Ensure the mixer's power switch is in the OFF position before connecting or disconnecting power.

4.3 Initial Audio Connections

1. Microphones: Connect microphones to the XLR inputs of channels 1-8.
2. Line Sources: Connect line-level instruments or playback devices to the 1/4" jacks of channels 1-12. For stereo sources, use paired channels (e.g., 9/10, 11/12).
3. Main Outputs: Connect the MAIN OUT (L/R) XLR connectors to your power amplifier or active speakers.
4. Monitor Outputs: Connect the MON SEND to your monitor amplifier or active monitor speakers.
5. Headphones: Plug your headphones into the PHONES jack on the front panel.

5. Operating Instructions

5.1 Powering On

After all connections are made, ensure all channel faders and the main mix faders are at their lowest setting. Power on any connected audio sources, then the RX1202FX, and finally your power amplifiers or active speakers.

5.2 Adjusting Input Channels

1. Gain Staging: Slowly increase the GAIN control for an active input channel while speaking into the microphone or playing the instrument. Observe the CLIP LED; it should only flash occasionally on the loudest peaks. If it stays lit, reduce the GAIN.
2. Equalization (EQ): Use the HIGH and LOW EQ controls to shape the tone of each channel. Turn clockwise to boost frequencies, counter-clockwise to cut.
3. Pan: Adjust the PAN control to position the sound source in the stereo image.
4. Monitor Send: Use the MON control to send a portion of the channel signal to the monitor mix.
5. FX Send: Use the FX control to send a portion of the channel signal to the internal effects processor.
6. Channel Level: Raise the channel fader to bring the signal into the main mix.

5.3 Using the Effects Processor

The RX1202FX features a 24-bit multi-FX processor. Use the PROGRAM knob to select from 100 presets (e.g., Hall, Room, Plate, Delay, Chorus, Flanger). Adjust the FX TO MAIN control to blend the effects signal into the main mix.

5.4 Main Mix and Monitoring

Adjust the MAIN MIX faders to control the overall output volume. Use the PHONES/CONTROL ROOM level control to set the volume for your headphones or control room monitors.

5.5 CD/Tape Input/Output

Connect external playback devices to the CD/TAPE IN RCA jacks. Use the CD/TAPE TO MIX button to route this signal to the main mix, or CD/TAPE TO CTRL to route it to the control room/phones output. The CD/TAPE OUT RCA jacks can be used to send the main mix to a recording device.

6. Maintenance

• Cleaning: Disconnect the power before cleaning. Use a soft, dry cloth to wipe the exterior. Avoid abrasive cleaners or solvents.
• Storage: When not in use for extended periods, store the mixer in a cool, dry place, protected from dust and extreme temperatures.
• Ventilation: Ensure ventilation openings are clear of dust and debris to maintain proper airflow.

7. Troubleshooting

8. Specifications

9. Warranty and Support

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

Online Support: www.behringer.com/support.html