Behringer TD-3-MO Modded Out Analog Bass Line Synthesizer

1. Introduction

The Behringer TD-3-MO is an ultra-affordable and faithful homage to the iconic analog bass line synthesizer, designed to deliver the unique sounds associated with classic 'modded-out' versions of the original. It features a pure analog signal path, a 16-step sequencer, and authentic VCO, VCF, and VCA filters, making it capable of producing powerful basslines and rhythmic patterns. This manual provides essential information for setting up, operating, and maintaining your TD-3-MO.

2. Key Features

• Unmatched Sound: Experience the raw power of a genuine analog synthesizer with its classic VCO, VCF, and VCA design, delivering rich, authentic tones reminiscent of legendary bass synths.
• Limitless Creativity: Explore a vast sonic landscape with extensive modulation options, including filter FM, CV, gate, and sync inputs, allowing for intricate sound design and experimentation.
• Seamless Connectivity: Integrate effortlessly with your studio setup via MIDI In/Thru, USB 2.0, and multiple 1/4" and 3.5mm inputs/outputs, ensuring compatibility with various devices and workflows.
• Intuitive Control: Shape your sound with precision using the hands-on interface, featuring dedicated knobs and switches for real-time manipulation of oscillators, filters, and envelopes.
• Robust and Reliable: Built to withstand the rigors of studio and stage, the TD-3-MO boasts a rugged construction and premium components, ensuring years of dependable performance and enjoyment.

3. Setup Guide

Before powering on your TD-3-MO, ensure all connections are made correctly. The unit is designed for immediate use with its default signal routing, requiring no initial patching for basic operation.

3.1 Power Connection

Connect the included power adapter to the 'POWER DC INPUT' on the rear panel of the TD-3-MO and then to a suitable power outlet. Ensure the power switch is in the 'OFF' position before connecting.

3.2 Audio Output

Connect the 'OUTPUT' 1/4" jack on the rear panel to your mixer, audio interface, or amplifier using a standard instrument cable.

3.3 MIDI and USB Connectivity

For MIDI control or integration with a computer, use the 'MIDI IN' and 'MIDI THRU' ports with standard 5-pin MIDI cables, or connect the 'USB' port to your computer using a USB-B cable. The USB connection allows for MIDI over USB and firmware updates.

3.4 Control Voltage (CV) and Gate Connections

The TD-3-MO features various 3.5mm jack inputs for advanced modulation and synchronization:

• FILTER IN: External audio input for processing through the TD-3-MO's filter.
• FILTER CV IN: Control Voltage input for modulating the filter cutoff.
• ACCENT IN: Gate input for triggering accent.
• SLIDE IN: Gate input for triggering slide.
• GATE IN: External gate input for the VCA.
• CV IN: Control Voltage input for the VCO pitch.
• SYNC IN/OUT: Synchronization input/output for external sequencers or drum machines.
• ACCENT OUT: Gate output for accent.
• GATE OUT: Gate output for the VCA.
• CV OUT: Control Voltage output for the VCO pitch.
• FILTER OUT: Output of the filter section.
• PHONES: 3.5mm stereo output for headphones.

Figure 3.4.1: Rear panel connections of the TD-3-MO, including power, audio, MIDI, USB, and CV/Gate ports.

4. Operating Instructions

The TD-3-MO features a highly intuitive layout with dedicated controls for real-time sound manipulation and sequencing. Familiarize yourself with the main sections of the synthesizer as shown in the diagram below.

Figure 4.1: Overview of the TD-3-MO's control panel.

4.1 Oscillator Section (VCO)

• TUNE: Adjusts the overall pitch of the oscillator.
• LEVEL (HIGH/LOW): Controls the output level of the oscillator.
• SUB OSC: Engages or disengages the sub-oscillator for added low-end.
• TEMPO: Sets the tempo for the internal sequencer.
• WAVE: Selects between Sawtooth and Square waveforms.

4.2 Filter Section (VCF)

• CUTOFF: Controls the filter cutoff frequency.
• RESONANCE: Adjusts the filter's resonance or Q.
• ENVELOPE: Controls the amount of envelope modulation applied to the filter cutoff.
• DECAY: Sets the decay time of the filter envelope.
• ACCENT: Controls the accent level applied to the filter.
• FILTER FM: Modulates the filter cutoff frequency.
• FILTER TRACKING: Adjusts how the filter cutoff tracks the keyboard pitch.

4.3 Amplifier Section (VCA)

• VOLUME: Controls the overall output volume.
• MUFFLER: A unique control for shaping the VCA's response.
• ACCENT: Controls the accent level applied to the VCA.

4.4 Sequencer and Pattern Controls

The TD-3-MO features a powerful 16-step sequencer for creating basslines and patterns.

• TRACK / PATTERN GROUP: Selects between track and pattern modes and groups.
• MODE (WRITE/PLAY): Switches between pattern writing and playback modes.
• START/STOP: Initiates or halts sequence playback.
• BAR: Selects the current bar in a pattern.
• PATTERN SELECTOR (1-8): Selects one of the 8 available patterns.
• STEP (0-9): Individual step buttons for programming notes and rests.
• WRITE / NEXT: Used for saving patterns and advancing in programming.

4.5 Modded Out Features

The TD-3-MO includes several modifications that expand its sonic capabilities beyond the original design:

• SOFT ATTACK: Modifies the attack characteristic of the sound.
• NORMAL - DECAY - ACCENT: Controls related to the envelope decay and accent behavior.
• GATE: Additional gate control.
• SLIDE TIME: Adjusts the duration of the slide effect.
• SWEEP ACCENT SPEED: Controls the speed of the accent sweep.
• HI RES: High-resolution mode for certain parameters.

4.6 Pitch Mode and Time Mode

These sections provide advanced control over pitch, timing, and pattern manipulation.

• PITCH MODE (INT/MIDI/USB/TRIG/IPPS/2PPQ/24PPQ/48PPQ): Selects the pitch input source and synchronization options.
• TIME MODE (TRANSPOSE DOWN/UP, ACCENT, SLIDE): Controls for transposing patterns and applying accent/slide effects.
• SYNC (D.S.): Synchronization control.

5. Maintenance

To ensure the longevity and optimal performance of your Behringer TD-3-MO, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Avoid abrasive cleaners, solvents, or waxes.
• Storage: Store the synthesizer in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
• Handling: Always handle the unit with care. Avoid dropping it or subjecting it to strong impacts.
• Ventilation: Ensure proper ventilation around the unit to prevent overheating. Do not block any ventilation openings.

6. Troubleshooting

If you encounter issues with your TD-3-MO, refer to the following common troubleshooting steps:

• No Power: Ensure the power adapter is securely connected to both the unit and a working power outlet. Check the power switch position.
• No Sound: Verify that the audio output cable is correctly connected to your mixer/amplifier and that the volume knob on the TD-3-MO is turned up. Check the volume levels on your receiving equipment.
• MIDI/USB Issues: Confirm that MIDI cables are connected correctly (IN to OUT, OUT to IN). For USB, ensure the correct drivers (if required) are installed on your computer and that the TD-3-MO is recognized.
• Unexpected Behavior: If the unit behaves unexpectedly, try powering it off and on again. Consult the Behringer website for potential firmware updates that may resolve issues.

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. Keep your proof of purchase for any warranty claims.

Behringer Official Website: www.behringer.com