A faithful software recreation of the classic analog delay pedal, offering rich BBD-style echoes, extensive modulation, and deep CV integration for modern music production.
Preserving Analog Character
The MF-104S Analog Delay is a virtual instrument that revives the warmth and organic texture of the original Moog MF-104 hardware pedal, first released in the early 2000s. It faithfully models the Bucket Brigade Device (BBD) delay line, delivering lush, analog-style echoes that range from tight, subtle repeats to spacious, evolving soundscapes.
Designed by Bob Moog’s team as an extension of modular synthesizer concepts, the plug-in captures the soul of the hardware while adding modern conveniences. The tone of the delayed signal can be shaped with dedicated settings that emulate the legacy analog circuit, introduce a more aggressive filter, or provide a clearer, modern sound. This allows for precise control over the color and grit of each repeat.
Core Delay and Modulation
At its heart, the MF-104S provides a flexible delay engine with adjustable time, feedback, and mix. Users can set delay times across a wide range, from short, percussive slaps to longer, musical echoes. The feedback control determines how many repeats are heard, enabling everything from a single discreet echo to cascading, self-oscillating textures when pushed to the extreme.
A multi-waveform low-frequency oscillator (LFO) adds motion to the delay time, creating classic pitch-shifting choruses, vibrato, and swirling, modulated delay effects. The LFO rate and amount are fully adjustable, allowing for subtle wobbles or dramatic sweeps. The timing can be kept tight and digital for precise rhythmic applications, or deliberately loosened to introduce subtle instabilities that mimic vintage gear.
Stereo and Feedback Routing
The MF-104S extends the original hardware’s functionality with true stereo output. The delay can operate in a standard stereo echo mode, where both channels receive the same delay pattern, or in a ping-pong mode, where the delayed signal bounces alternately between the left and right speakers, creating a wide, immersive stereo image.
A unique feedback routing option allows the user to choose whether the feedback signal passes through the entire effect chain or is routed only through the delay line itself. This preserves the exact tonal character of the input sound, preventing the feedback from adding excessive coloration. This feature offers creative control, enabling the user to retain clarity while still generating rich, repeating echoes.
CV Integration and Presets
The MF-104S embraces modular-style control by offering CV (control voltage) inputs for delay time, feedback, LFO rate, LFO amount, and mix. These inputs can be assigned to various internal or external modulation sources, allowing for complex, evolving parameter changes. An attenuation control on each CV input lets the amount of modulation be smoothed and scaled to taste.
Multiple instances of the plug-in can be run in a project, and a preset system stores and recalls user-defined settings. This facilitates a seamless workflow, enabling quick access to favorite sounds. The software brings the classic moogerfooger sound into the DAW environment, making it ideal for adding analog-inspired depth to any mix.
Key features
- Faithful emulation of the Moog MF-104 analog BBD delay
- Stereo operation with echo and ping-pong modes
- Adjustable tone with legacy, analog, and modern settings
- Timing control for tight digital or loose analog feel
- Selectable feedback routing for input-preserving repeats
- CV inputs for delay time, feedback, LFO rate, amount, and mix
- Preset management and multiple instance support
Best for
The MF-104S is best for producers and musicians seeking a warm, analog-style delay with creative modulation options. It excels on synths, guitars, vocals, and percussion, offering both classic dub-style echoes and modern stereo effects. Its CV integration and preset system make it particularly suited for experimental sound design and modular-influenced workflows.