Behringer Sonic Ultramizer SU9920 Ultimate Stereo Sound Enhancement Processor User Manual

1. Introduction

The Behringer Sonic Ultramizer SU9920 is a stereo sound enhancement processor designed to improve the clarity, presence, and depth of audio signals. It achieves this by dynamically processing the low and high frequencies, making sound systems more impactful without requiring additional speakers or amplifiers. This manual provides detailed instructions for the proper installation, operation, and maintenance of your SU9920.

Image 1: Angled view of the Behringer Sonic Ultramizer SU9920, showcasing its rack-mountable design and front panel controls.

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.
• 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 Sonic Ultramizer SU9920 offers the following key features:

• Stereo Sound Enhancement Process with Dedicated Low Contour Process Controls.
• TRS and XLR Input/Output (I/O) connectors for versatile connectivity.
• Enhances voice intelligibility and music presence in various audio applications.
• Improves the performance of sound systems by adding sparkling high-end and tight bass without requiring additional speakers or amplifiers.

4. Controls and Connectors

4.1 Front Panel

The front panel of the SU9920 provides all the necessary controls for sound enhancement and monitoring.

Image 2: Front panel of the Behringer Sonic Ultramizer SU9920. This view shows the controls for Channel 1 and Channel 2, including Process and Low Contour knobs, Clip indicators, and the In/Out bypass button.

1. CHANNEL 1 / CHANNEL 2: These sections contain the controls for each stereo channel.
2. PROCESS Knob: Adjusts the amount of high-frequency enhancement for the respective channel. Turning clockwise increases the effect.
3. LOW CONTOUR Knob: Controls the amount of low-frequency enhancement and definition for the respective channel. Turning clockwise increases the effect.
4. CLIP LEDs: Indicate when the input or output signal is clipping, suggesting the signal level is too high and may cause distortion. Adjust input levels to prevent clipping.
5. IN/OUT Button: Activates or bypasses the sound enhancement processing. When illuminated, the processing is active.
6. POWER Switch: Turns the unit on or off.

4.2 Rear Panel

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

Image 3: Rear panel of the Behringer Sonic Ultramizer SU9920. This view displays the AC power inlet, and the balanced XLR and 1/4" TRS input and output connectors for both channels.

1. AC IN: Standard IEC power connector for connecting the included power cable.
2. INPUTS 1 & 2 (XLR & TRS): Balanced XLR and 1/4" TRS input connectors for connecting audio sources. Use either XLR or TRS for each channel, not both simultaneously.
3. OUTPUTS 1 & 2 (XLR & TRS): Balanced XLR and 1/4" TRS output connectors for sending the processed audio signal to other equipment, such as an amplifier or mixer. Use either XLR or TRS for each channel, not both simultaneously.

5. Setup

Proper setup ensures optimal performance and prevents damage to your equipment.

1. Unpacking: Carefully unpack the SU9920 and inspect it for any signs of damage during transit. Retain the original packaging for future shipping or storage.
2. Placement: Install the unit in a standard 19-inch rack if desired, ensuring adequate ventilation around the chassis. Avoid placing it near heat sources or in direct sunlight.
3. Power Connection: Connect the supplied AC power cable to the AC IN socket on the rear panel and then to a suitable power outlet. Ensure the POWER switch on the front panel is in the OFF position before connecting.
4. Audio Connections:
   • Connect your audio source (e.g., mixer output) to the INPUTS 1 and 2 on the rear panel using balanced XLR or 1/4" TRS cables.
   • Connect the OUTPUTS 1 and 2 to the inputs of your next audio device (e.g., amplifier, recording interface) using balanced XLR or 1/4" TRS cables.
   • Ensure all connections are secure and correctly phased.
5. Initial Settings: Before powering on, set both PROCESS and LOW CONTOUR knobs to their minimum (fully counter-clockwise) positions. Ensure the IN/OUT button is disengaged (processing bypassed).

6. Operation

Follow these steps to operate your Sonic Ultramizer SU9920:

1. Power On: After all connections are made and initial settings are configured, press the POWER switch on the front panel to turn on the unit.
2. Signal Check: Play an audio signal through your system. Ensure that audio is passing through the SU9920 even with the processing bypassed.
3. Engage Processing: Press the IN/OUT button to engage the sound enhancement processing. The button will illuminate.
4. Adjust PROCESS: Slowly turn the PROCESS knob clockwise for Channel 1 and/or Channel 2. Listen for increased clarity and presence in the high frequencies. Adjust to taste, avoiding excessive brightness or harshness.
5. Adjust LOW CONTOUR: Slowly turn the LOW CONTOUR knob clockwise for Channel 1 and/or Channel 2. Listen for enhanced bass definition and impact. Adjust to taste, avoiding muddiness or overwhelming bass.
6. Monitor CLIP LEDs: Continuously monitor the CLIP LEDs. If they illuminate frequently or stay lit, reduce the input level to the SU9920 or the PROCESS/LOW CONTOUR settings to prevent distortion.
7. A/B Comparison: Use the IN/OUT button to quickly bypass and re-engage the processing to compare the enhanced sound with the original signal. This helps in fine-tuning the settings.
8. Power Off: When finished, press the POWER switch to turn off the unit.

7. Maintenance

The Behringer Sonic Ultramizer SU9920 requires minimal maintenance to ensure long-term reliability.

• Cleaning: Clean the unit regularly with a soft, dry cloth. Do not use liquid cleaners or solvents, as they may damage the finish or internal components.
• Ventilation: Ensure that the ventilation openings are not obstructed. Dust accumulation can lead to overheating.
• Storage: If storing the unit for an extended period, disconnect it from power and store it in a dry, dust-free environment, preferably in its original packaging.
• Servicing: All servicing should be performed by qualified service personnel. Do not attempt to open the unit or perform repairs yourself.

8. Troubleshooting

This section addresses common issues you might encounter with your SU9920.

9. Specifications

Technical specifications for the Behringer Sonic Ultramizer SU9920:

• Model: SU9920
• Item Weight: 4.85 pounds (2.2 kg)
• Product Dimensions: 19.02 x 1.75 x 8.54 inches (483 x 44.5 x 217 mm)
• Color: Black
• Inputs: Balanced XLR and 1/4" TRS
• Outputs: Balanced XLR and 1/4" TRS
• Power: Standard AC input
• Enhancement Type: Stereo Sound Enhancement Processor with Low Contour Control

10. Warranty and Support

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

Behringer Official Website: www.behringer.com