4ms Spectral Multiband Resonator (26HP)

Full Description

Versatile Resonance & Filtering

The 4ms Spectral Multiband Resonator is perfect for a range of applications, from basic filtering to providing marimba like tones by inputting clock or triggers. One of the most unique features of the 4ms SMR Module is that is treats frequencies like musical notes in a scale. On this principle, the six band in total, are grouped together to form a chord. It works by using the built-in control such as the Rotate knob, allowing the ‘Notes’ to circle around the scale. They will then rotate to the bottom of the ring once they hit the top. Another notable function is the Spread control that blends bands between each other for a smooth exchange and optimal performance value.

Multi-Coloured Frequency Ring

The most prominent feature of the module is the multi-coloured ring of light, which provides information on the frequency of each of the filters. It also displays the levels and scale selection of your frequency band, providing a handy visual tool for added convenience. Acting as a standard six-band graphic EQ, the Spectral Multiband Resonator gives you everything you need to work as a normal filter module. It includes six frequency band-pass filters, which can be blended and mixed together using the sliders. There is also a Resonance/Q variable control, allowing you to change the overall tonal characteristics of each band, from a minimal sound to a ringy, metallic-like tone.

In-Depth Control

A wide range of high-grade controls and parameters are included for getting the most out of each frequency band. Basing its design on the principle that each band is treated like a note in a scale, the module gives you the tools to adjust the spread and distance between the note changes. CV inputs are also included for sequencing applications, as well as providing versatile control for external modules. Another interesting and unique control is the Morph control, which allows you to automatically cross-fade between frequencies. The Morph control can also work together with the Slew control which can be used to allow rhythmic clock to drive the SMR, virtually acting as a speed evolving resonant filter.

Design & Connectivity

The robust yet ergonomic layout of the module, providing a quick and easy workflow that allows you to make changes on the fly with ease. The integrated sliders provide a quick and easy way to change your frequency bands levels, with optimal precision. You can change the way the module reacts with the Resonance control, ranging from metallic, percussive-like sounds to ethereal and ambient tones. It also provides a range of scale banks for different scale tunings. There are also user-programmable scales, with each bank possessing 11 scales of 20 frequencies/notes each. The Eurorack format module also include two 1V/octave frequency jacks for tracking even and odd bands, accompanied by six storage banks which you can recall on the fly.

Features

• Six filter channels, selected from twenty active filters displayed on the light ring
• Variable "Q" (Resonance) ranges from classic band-pass to ultra-resonant ringing
• Ring of 20 full-colour lights displays the filter frequencies
• Filter frequencies move about the scale using Rotation and Spread
• Rotation "spins" the frequencies around the scale
• Spread controls the gap between neighbouring bands
• Morph creates a variable speed cross-fade when the filter frequencies change
• Lock buttons prevent each channel from changing in frequency (resonance can also be locked)
• Freq Nudge knobs for creating de-tuning effects, or honing in on an exact frequency
• Frequency CV input (1V/octave) for even and odd bands (flip switch selects single or multiple channel control)
• Stereo ins and outs stagger the bands into evens/odds for an immersive stereo field
• Spectral content outputs for each channel (Env Out) allow for vocoding (spectral transfer)
• Fast or Slow tracking speeds for Envelope CV ouptuts, or selectable Trigger output mode is useful for extracting a beat from music
• Sliders and CV jacks control each filter's level
• Slew switch applies slew-limiting to the CV level jacks, which prevents clicking from clocks or triggers
• Each bank has 11 scales of 20 frequencies/notes each.
• User-programmable scales (select octave, chromatic note, and microtonal adjustments for each note in the scale)
• Scale banks for Western, Indian, Chromatic, Micro-tonal, Equal tempered, Just intonation tunings
• Rotation/Spread moves about an entire bank, or can be limited to a single scale
• White noise is normalized to the inputs, so the SMR can be used without an external signal

Specifications

• Size: 26HP
• Depth: 0.95" (24mm)
• Power Consumption:
  • +12V rail: 86mA maximum (110mA max when jumper set to +12V)
  • -12V rail: 28mA maximum
  • +5V rail: 25mA maximum (0mA [not used] when jumper set to +12V)