Behringer UB-Xa User Manual

1. Introduction

Welcome to the instruction manual for your Behringer UB-Xa 16-voice Bi-timbral Polyphonic Analog Synthesizer. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your new instrument. Please read it thoroughly to ensure optimal performance and longevity of your synthesizer.

2. Features

The Behringer UB-Xa is packed with powerful features designed for versatile sound creation:

• 16-voice Bi-timbral Polyphonic Analog Synthesizer with 32 Oscillators
• 16-channel 5-pin DIN MIDI In/Out/Thru
• 3 x 1/4" TRS Foot Switch Jack
• 2 x 1/4" TRS Foot Pedal Jack
• 512 User Preset Slots

3. Setup

3.1 Unpacking

Carefully remove the UB-Xa from its packaging. Retain all packaging materials for future transport or storage.

3.2 Power Connection

Connect the included power adapter to the 'POWER' input on the rear panel of the UB-Xa and then to a suitable power outlet.

3.3 Audio Connections

Connect the audio outputs of the UB-Xa to your mixer, audio interface, or amplifier using appropriate cables (not included).

3.4 MIDI Connections

For MIDI control, connect your MIDI controller or computer's MIDI interface to the 'MIDI IN' port. Use 'MIDI OUT' or 'MIDI THRU' to connect to other MIDI devices.

3.5 Pedal/Switch Connections

Connect foot switches to the 1/4" TRS Foot Switch Jacks and foot pedals to the 1/4" TRS Foot Pedal Jacks for extended control options.

4. Operating

4.1 Overview of Controls

The UB-Xa features a comprehensive control panel designed for intuitive sound design and performance:

• Manual Section: Adjust overall volume and balance.
• Control Section: Fine-tune parameters like portamento and master tune.
• Arpeggiator: Control arpeggio rate and settings.
• Modulation: Adjust LFO rate, depth, and waveform for various modulation effects.
• Oscillators 1-2: Control frequency, pulse width, and sync for both oscillators.
• Filter: Shape your sound with frequency, resonance, modulation, and noise controls.
• Envelopes: Adjust Attack, Decay, Sustain, and Release for both VCA and VCF envelopes.
• Programmer Section: Select and save presets. The display shows the current preset, e.g., 'A1 Brass Ensemb'.
• Keyboard: The 61 semi-weighted keys offer expressive playability, supporting velocity sensitivity and polyphonic aftertouch.
• Performance LFO: Dedicated LFO controls for real-time performance modulation.

4.2 Using Presets

The UB-Xa includes 512 user preset slots. Use the 'SELECT' knob and 'PRESET VALUE' buttons to navigate and recall your saved sounds.

4.3 Dual-Layer Mode

Engage dual-layer mode to combine two distinct patches across the 16 voices for rich, complex sounds.

5. Maintenance

5.1 Cleaning

Wipe the surface of the synthesizer with a soft, dry cloth. Avoid abrasive cleaners or solvents.

5.2 Storage

When not in use, store the UB-Xa in a dry, dust-free environment. If transporting, use appropriate protective casing.

6. Troubleshooting

6.1 No Sound

Check all audio cable connections. Ensure the volume is turned up on both the synthesizer and your audio system. Verify power connection.

6.2 MIDI Issues

Confirm MIDI cable connections. Check MIDI channel settings on both the UB-Xa and your external MIDI device.

6.3 Unexpected Behavior

Try performing a factory reset (refer to the full manual for specific instructions) or power cycling the unit.

7. Specifications

8. Warranty and Support

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