Old Blood Noise Endeavors Float

The Old Blood Noise Endeavors Float is a dual analog filter pedal with two independent, fully controllable filters in one enclosure¹. Each filter can be a low-pass, band-pass or high-pass type, and its cutoff frequency can be set to move with one of six LFO shapes, with the dynamic envelope of your playing, or with an external expression pedal²³. Old Blood Noise Endeavors describes the range of sounds as reaching from "quacky auto-wahs, shooting sonic laser beams or organically rising and falling filter landscapes" to modulation that can act as a phaser, a harmonic tremolo, a choppy or bubbly step-filter, or an automated synth-like sweeper³.

The Float was announced in July 2022 as OBNE's first digitally controlled analog pedal, the result of two years of development, and was available from launch at $299³⁴. Guitar World's Dan Pechacek noted that while "it's a filter pedal, technically," with two filters working on your signal, "it kind of feels like something else entirely"⁵.

Two independent filters in one pedal

The core of the Float is a pair of independent filters, each with its own controls, its own footswitch for selecting low, band or high-pass operation, and its own bypass footswitch²⁵. Because the two sides do not have to match, one filter can sweep slowly while the other reacts to your picking dynamics, or both can be synced to move together.

Each filter carries the controls you would expect from a standalone filter: volume, filter type, cutoff frequency, resonance, LFO rate, envelope sensitivity and LFO shape⁷. Cutoff frequency is tweaked via a slider rather than a knob, which keeps the two filter sections readable at a glance on a pedalboard-friendly enclosure⁵.

Gearnews compared this dual-effect layout to Old Blood Noise Endeavors' recently revamped Alpha Haunt, another pedal that puts two independently routable effects in one box⁷.

The controls: sliders, six LFO shapes and sync

The Cutoff Frequency control is the heart of the pedal. It can be set to move via six different LFO shapes or through dynamic envelope triggering, so the same filter section works as a timed modulation source or as an auto-wah that follows your attack³.

The Sync switch ties the two filters' movement together or leaves them independent, and the Min/Max switch narrows or widens the sweep range, which is what turns a full filter sweep into a subtle harmonic shimmer⁷. An expression pedal can be plugged in to externally control Cutoff or Rate for each of the filters³.

Stereo, parallel and series routing

The Float's dual inputs and outputs open up three routing options: true stereo, parallel mono, or series mono, all via top-mounted jacks²³. In stereo, each filter feeds its own output. In parallel mono, the two filters process the same input side by side and blend back together. In series, one filter feeds into the next, so a signal can be swept twice on its way through².

Guitar.com's reviewer, Jason Mays, summed up the flexibility: each filter can respond to a fixed LFO, to the dynamic envelope of your playing or to an expression pedal, and the two can be run in parallel, in series or in stereo².

What reviewers said

Guitar.com reviewed the Float in August 2022 and rated it 8 overall, concluding²:

Mays described the pedal's envelope-following harmonic movement as feeling "like tremolo cosplaying as auto-wah," evoking the Grateful Dead's Estimated Prophet and U2's Mysterious Ways in its mono envelope mode². MusicRadar's Rob Laing wrote that synth players and guitarists alike can have a lot of fun with it³. In a 2026 review of another pedal, Guitar.com's Cillian Breathnach cited the Float as a controllable and weird set of filters worth knowing about⁸.

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