WT-QUAD LFO

The WT-QUAD LFO is a versatile, 4-channel Low Frequency Oscillator (LFO) designed around a wavetable architecture. Equipped with an OLED RGB display (160x128 px), it provides a user-friendly interface and extensive configurability. Firmware updates are easily installed via USB for future enhancements.

Key Features

Each of the four LFO channels includes:

• Clock Input: For syncing LFO timing
• Sync Input: Allows internal or external sync
• CV Input: Control the modulation from external sources
• LFO Output: Delivers smooth LFO signals
• Trigger Output: Generates trigger pulses for synchronization

Wavetables

• Default Wavetables: SAW, SQUARE, SINE, TRIANGLE, and RAMP
• User Wavetables: Load up to 12 custom wavetables via USB for personalized modulation

Configurable Parameters

In the LFO channel menu, each channel can be individually tailored with:

• Frequency: Ranging from 0.0032 Hz to 2 kHz
• Offset & Attenuation: Fine-tune the waveform positioning and amplitude
• Sync Options: Select between external or internal sync modes
• Cross-Modulation & Morphing: Cross-modulate between channels and morph up to 2 wavetables for dynamic LFO shapes

Audio File Support

The WT-QUAD LFO supports custom wavetables in:

• Format: WAV (mono)
• Resolution: 16-bit, 44.1 kHz sample rate
• Max Length: 4096 samples (longer files are truncated)

Loading WAV Files

• Access the LFO Channel Menu
• Press the Wave encoder (2nd encoder)
• Insert USB stick and load your wavetable

Main Menu Configuration

The main menu provides options to:

• CV Input Assignment: Adjust frequency (linear or exponential), attenuation, offset, and wavetable morphing
• Clock Inputs: Set clock steps from 1 to 128 (default is 1)
• Sync Inputs: Adjust polarity (rising, falling, or both)
• Wavetable Management: View, delete, or update wavetables

Preset Storage

Easily save your current configuration as a preset and reload it later for instant recall.

Firmware Update

Updating firmware is simple: format your USB stick as FAT32 or ExFAT, then load the update file (*.bin).

LFO Designer

Create custom LFO waveforms with our intuitive visual interface.

Design complex modulation shapes for your WT-QUAD-LFO using this web-based app. Mix sine, square, triangle, and ramp waveforms with adjustable amplitudes, then export directly to WAV format.

Note: During extended operation, the module's back side can reach temperatures of up to 60°C. While this does not affect the Quad LFO's performance or neighboring modules, it is recommended to avoid placing analog VCOs or temperature-sensitive modules immediately to its right, as the warmth could potentially influence their tuning stability or other heat-sensitive parameters.