Behringer Model 15 Semi-modular Analog Synthesizer User Manual

1. Introduction

The Behringer Model 15 is a semi-modular analog synthesizer designed to provide a wide range of sound creation possibilities. This instrument features two Voltage Controlled Oscillators (VCOs) and a comprehensive patch bay, allowing for extensive sound design and experimentation. This manual provides essential information for setting up, operating, and maintaining your Model 15 synthesizer.

2. Key Features

• Semi-modular Analog Synthesizer with 2 VCOs
• 48 Patch Points for flexible signal routing
• Integrated Step-sequencer for melodic and rhythmic patterns
• Dedicated Headphone Out for monitoring
• Arpeggiator function for dynamic musical phrases

3. Setup

Before operating your Behringer Model 15, ensure proper setup to prevent damage and ensure optimal performance.

1. Unpacking: Carefully remove the synthesizer from its packaging. Retain all packaging materials for future transport or storage.
2. Power Connection: Connect the provided power adapter to the DC input on the rear panel of the Model 15. Plug the adapter into a suitable power outlet.
3. Audio Output: Connect the main audio output (typically a 1/4-inch jack) to your mixer, audio interface, or amplifier using a standard audio cable.
4. MIDI Connection (Optional): If using MIDI control, connect a MIDI cable from your MIDI controller or computer interface to the MIDI IN port on the Model 15.
5. Initial Power On: Ensure all connections are secure, then power on the unit.

4. Operating the Model 15

The Behringer Model 15 offers a rich array of controls and patch points for sound sculpting. Familiarize yourself with the front panel layout.

Figure 4.1: Front panel overview of the Behringer Model 15, displaying the arrangement of modules including ARP/SEQ, Oscillators, Mixer, Filter, Envelope, and I/O.

Figure 4.2: Angled view of the Behringer Model 15, providing a perspective of the unit's physical dimensions and the tactile nature of its controls.

4.1. Module Overview

• ARP/SEQ: Controls for the arpeggiator and step sequencer, including Rate, Mode, Direction, and Octave/Sequence length. Features Play, Hold, and Tap buttons.
• LOW FREQUENCY OSC (LFO): Dedicated LFO with Rate, Pitch Mod, Filter Mod, and Waveform controls for modulation.
• OSC 2 + SUB: Features Octave, Frequency, Sync, Waveform, and Sub-Oscillator controls for the second oscillator.
• MIXER: Blends the signals from the oscillators and noise generator. Includes individual level controls.
• UTILITIES: Contains an Attenuator, 3/W Noise generator, and Modulation controls for signal processing.
• FILTER: A 24dB/octave low-pass filter with Cutoff, Key Tracking, Resonance, and ENV AMT controls.
• ENVELOPE: ADSR (Attack, Decay, Sustain, Release) envelope generator for shaping the sound's amplitude or filter.
• CONTROL: Master Volume, ENV Release On/Off switch, VCA Mode, and Reverb Mix controls. Includes a MIDI IN port.
• INPUTS/OUTPUTS: A comprehensive patch bay with 48 patch points for routing control voltages (CV) and audio signals between modules, allowing for semi-modular operation.

4.2. Basic Sound Creation

1. Power On: Turn on the Model 15 and your audio monitoring system.
2. Oscillator Settings: Adjust the Octave and Waveform controls for OSC 1 and OSC 2.
3. Mixer: Use the Mixer section to balance the levels of the oscillators.
4. Filter: Experiment with the Filter Cutoff and Resonance to shape the timbre.
5. Envelope: Adjust the ADSR parameters to control how the sound evolves over time.
6. Patching: For advanced sound design, use patch cables to connect different modules via the Inputs and Outputs section. For example, connect an LFO output to a filter cutoff input for modulated filter sweeps.

No official product videos were provided for embedding in this manual. For visual demonstrations, please refer to the manufacturer's official website or authorized retailers.

5. Maintenance

To ensure the longevity and optimal performance of your Behringer Model 15, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Avoid abrasive cleaners, solvents, or waxes.
• Environment: Operate and store the synthesizer in a clean, dry environment away from direct sunlight, extreme temperatures, and excessive humidity.
• Ventilation: Ensure proper ventilation around the unit to prevent overheating.
• Power: Always disconnect the power adapter when the unit is not in use for extended periods or during cleaning.

6. Troubleshooting

If you encounter issues with your Model 15, consult the following common troubleshooting steps:

• No Sound:
  • Check all audio cable connections.
  • Ensure the master volume is turned up.
  • Verify that oscillator levels are up in the mixer section.
  • Check envelope settings; a very short sustain or release can make sounds inaudible.
• Distorted Sound:
  • Reduce output volume or input gain on your mixer/interface.
  • Check for excessive resonance on the filter.
• MIDI Not Responding:
  • Ensure MIDI cables are correctly connected (MIDI OUT of controller to MIDI IN of Model 15).
  • Verify MIDI channel settings on both the controller and the Model 15 (if configurable).
• Sample and Hold Issues: Early production units (first 1900) of the Model 15 were reported to have Sample and Hold issues. Behringer released a fix that may require soldering. If you suspect this issue, contact Behringer support for guidance.

7. Specifications

8. Warranty and Support

Warranty information for the Behringer Model 15 is typically provided with the product at the time of purchase. Please refer to the documentation included in your product packaging for specific warranty terms and conditions.

For technical support, service, or further inquiries, please visit the official Behringer website or contact their customer support directly. Keep your proof of purchase handy when contacting support.