1. Introduction
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your Behringer JT-4000 MICRO Portable 4-Voice Hybrid Synthesizer. Please read this manual thoroughly to ensure proper use and to maximize the potential of your instrument.
2. Safety Instructions
- Power Supply: Use only the specified USB Type-C power source. Ensure the voltage matches the device requirements.
- Water and Moisture: Do not expose the unit to rain, moisture, or any liquids. Avoid placing objects filled with liquids on the unit.
- Heat Sources: Keep the unit away from heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
- Ventilation: Do not block any ventilation openings. Ensure adequate airflow around the unit.
- Cleaning: Clean only with a dry cloth. Do not use liquid cleaners or aerosols.
- Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified service personnel.
3. Getting Started
3.1 Unpacking
Carefully remove the JT-4000 MICRO from its packaging. Inspect the unit for any signs of damage during transit. Retain the packaging for future transport or storage.
3.2 Power Connection
The JT-4000 MICRO is powered via a USB Type-C port. Connect a compatible USB Type-C cable to the unit's USB port and to a power source (e.g., a power bank, computer USB port, or a USB power adapter). The unit will power on automatically once connected.
3.3 Audio Output
Connect headphones to the PHONES output jack on the top panel for monitoring audio. Adjust the VOLUME knob to control the headphone output level.
3.4 MIDI Connectivity
The USB Type-C port also supports USB MIDI for connection to a computer or other MIDI devices. This allows the JT-4000 MICRO to send and receive MIDI data for integration with digital audio workstations (DAWs) or other MIDI-compatible hardware.
4. Controls and Interface
The Behringer JT-4000 MICRO features an intuitive layout designed for ease of use and quick sound manipulation.
Figure 4.1: Front view of the Behringer JT-4000 MICRO, showing the keyboard, knobs, buttons, and display.
4.1 Top Panel Overview
Figure 4.2: Top-down view highlighting the control layout of the JT-4000 MICRO.
- USB Type-C Port: For power supply and USB MIDI connectivity.
- Power Switch: Toggles the unit on/off.
- VOLUME Knob: Adjusts the overall output level of the headphones.
- PHONES Jack: 3.5mm stereo output for headphones.
- SEL Button: Selects parameters or navigates menus.
- ENTER Button: Confirms selections or enters sub-menus.
- OSC-X Button: Accesses Oscillator parameters.
- LFO-X Button: Accesses Low-Frequency Oscillator parameters.
- FILTER Button: Accesses Filter parameters.
- AMP Button: Accesses Amplifier envelope parameters.
- ARP Button: Activates and configures the Arpeggiator.
- SETTINGS Button: Accesses global settings and utility functions.
- CUTOFF Knob: Controls the filter cutoff frequency.
- RESO Knob: Controls the filter resonance.
- Display: Shows current patch number, parameter values, and menu options.
- 16 Touch-Sensitive Keyboard: For playing notes and inputting data.
5. Basic Operation
5.1 Power On/Off
To power on, connect the USB Type-C cable to a power source. The unit will automatically turn on. To power off, disconnect the USB Type-C cable.
5.2 Adjusting Volume
Rotate the VOLUME knob clockwise to increase the headphone output level and counter-clockwise to decrease it.
5.3 Selecting Presets
The JT-4000 MICRO comes with 32 editable and savable presets. To select a preset:
- Press the SEL button to enter preset selection mode.
- Use the keyboard keys to navigate through the presets. The display will show the current preset number.
- Press the ENTER button to load the selected preset.
5.4 Editing Parameters
The JT-4000 MICRO allows for extensive parameter editing. Each main function (OSC-X, LFO-X, FILTER, AMP, ARP, SETTINGS) has dedicated buttons to access its parameters.
- Press the desired function button (e.g., OSC-X). The button will illuminate.
- Use the SEL button to cycle through the parameters within that function.
- Use the CUTOFF and RESO knobs to adjust the value of the selected parameter. The display will show the parameter name and its current value.
- Press the function button again to exit parameter editing for that section.
5.5 Saving Presets
After editing a preset, you can save your changes to one of the 32 available slots.
- While in a preset editing mode, press and hold the ENTER button.
- The display will prompt you to select a save location. Use the keyboard keys to choose a slot.
- Press ENTER again to confirm saving.
6. Advanced Features
6.1 SuperSaw Waveform
The JT-4000 MICRO includes a modeling that reproduces the SuperSaw waveform, originally found in the JP-8000 synthesizer. This waveform provides a rich, detuned sound by layering multiple saw waves.
6.2 2-Operator FM Engine
The synthesizer features a 2-operator FM (Frequency Modulation) engine, which expands the range of available sounds beyond traditional subtractive synthesis. This allows for the creation of complex, metallic, or bell-like tones.
6.3 12-bit DAC
Equipped with a 12-bit Digital-to-Analog Converter (DAC), the JT-4000 MICRO can reproduce classic synthesizer sounds with a distinct character.
6.4 Arpeggiator
The built-in arpeggiator offers 3 patterns, allowing you to create rhythmic sequences from held chords. Press the ARP button to activate and configure the arpeggiator settings, such as tempo, pattern, and octave range.
7. Maintenance
7.1 Cleaning
To clean the unit, use a soft, dry cloth. Do not use abrasive cleaners, solvents, or waxes, as these can damage the finish and controls.
7.2 Storage
When not in use for extended periods, store the JT-4000 MICRO in a cool, dry place, away from direct sunlight and extreme temperatures. It is recommended to use the original packaging for protection.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output | Volume knob is too low; headphones not connected; faulty headphones. | Increase VOLUME knob; ensure headphones are fully plugged in; test with different headphones. |
| Unit not powering on | USB Type-C cable not connected or faulty; power source issue. | Ensure USB Type-C cable is securely connected; try a different cable or power source. |
| MIDI communication issues | Incorrect MIDI settings in DAW; faulty USB cable; driver issues. | Check MIDI settings in your DAW; try a different USB cable; ensure necessary drivers are installed (if applicable). |
| Unexpected behavior | Temporary software glitch. | Disconnect and reconnect power to restart the unit. |
9. Specifications
- Model Name: JT-4000 MICRO
- Type: Portable 4-Voice Hybrid Synthesizer
- Oscillators: Two analog modeling oscillators per voice
- Filter: Analog filter
- FM Engine: 2-operator
- DAC: 12-bit
- Keyboard: 16 touch-sensitive keys
- Arpeggiator: 3 patterns
- Connectivity: USB Type-C (power and MIDI), 3.5mm PHONES output
- Power: USB Type-C
- Dimensions (L x W x H): 4.92 x 2.24 x 6.22 inches (12.5 x 5.7 x 15.8 cm)
- Weight: 5.3 ounces (150 grams)
- Body Material: Plastic
- Finish Type: Dark Grey Panel
- Included Components: Synthesizer
10. Warranty and Support
For warranty information and technical support, please refer to the official Behringer website or contact your local distributor. Keep your proof of purchase for any warranty claims.
