Source Audio Announces the Spectrum Intelligent Filter
September 5, 2019 · 6 sources

Source Audio announced the Spectrum Intelligent Filter, an envelope filter pedal the company calls an "all-in-one filter extravaganza," built to work with both guitars and basses123. The pedal had first been unveiled at Winter NAMM 2019, and at the time of the announcement MusicRadar reported it would be ready to ship in Spring45.
Source Audio describes the pedal in its own words1:
"the Spectrum Intelligent Filter marries the legendary tones of vintage envelope filter pedals with modern ingenuity"1
The onboard presets range from vintage sounds inspired by the Mu-Tron and the discontinued Lovetone Meatball to contemporary envelopes that incorporate phaser-filtering, distortion and OC-2 style octave effects26. The Neuro editing tools add 29 different filter options2.
Key facts as announced:
- Type: envelope filter pedal1
- Maker: Source Audio1
- List price: $219.00 sale price1
- Voicings: Tron, Dumpling and Crier, selected by a mini toggle switch3
- Controls: four knobs covering eight parameters, including Input Level, Envelope Sensitivity, Filter Depth, Wet/Dry Mix, Frequency, Speed and Mix36
- Presets: 6 accessible via the pedal's toggle switch, 128 via MIDI1
- Power: 9V DC, negative tip, power supply included, 165mA current draw6
- I/O: twin inputs and outputs, stereo51
The pedal's designer was Bob Chidlaw. Source Audio's Jesse Remington said of the brief: "I told Bob Chidlaw I wanted the undisputed greatest stereo filter pedal of all time. He not only did that with Spectrum"6.
Gearnews reported that the Spectrum would be the first in a new line of C4 Synth pedals, a line that later produced the C4 Synth5. The pedal's other features included Universal Bypass, selectable between true bypass relays and analog buffers, a brushed anodized aluminum enclosure measuring 4.6" x 2.75" x 2.2", and a 2 year warranty1.
Sources (6)
- Spectrum Intelligent Filter, Source Audio (sourceaudio.net)
- Source Audio's Spectrum Intelligent Filter offers a world of tone-sculpting options, Guitar World, 2019-09-05
- NAMM 2019: Source Audio's Spectrum Intelligent Filter is an all-in-one synth, filter, octave and harmonizer pedal, MusicRadar, 2019-01-26
- Watch Source Audio’s demo of the Spectrum Intelligent Filter, Guitar.com, 2019-09-10
- NAMM 2019: Source Audio Spectrum Intelligent Filter, gearnews.com, 2019-01-26
- Source Audio Unveils the Spectrum Intelligent Filter Pedal, No Treble, 2019-09-13