BLEASS Phaser

Name: BLEASS Phaser
Price: 19.9 USD
Author: BLEASS

by BLEASS · Modulation · Phaser

Not rated yet

BLEASS Phaser is a phasing effect for resonant swirls and atmospheric stereo sounds.

It runs as VST3, AU and AAX on Windows and macOS, for €19.99 (about $22.7).

Best for: Guitars, Keys & Synths, Sound Design. Genres: Electronic & EDM, Rock & Indie, Ambient & Cinematic.

Keywords: phaser, swirling, wide, classic, surgical, electric guitar, keys, simple, sound design, synths, AAX, AUv3/iOS, beginner-friendly, dark, mixing, tempo-synced, vocals.

What it does

BLEASS Phaser is described as "an all-encompassing phasing effect." Two LFOs drive it, one moving the notch frequencies and one moving their spread, so it covers classic sweeps as well as shifting, irregular notch patterns.

Phaser section: Notches sets how many notch filters run (1 to 24 all-pass stages, per the developer's walkthrough), with Frequency for the centre, Spread for how widely they are spaced, and Feedback for resonance.
Color: rolls off high frequencies for a softer, darker phase.
Frequency LFO: rate in Beat (host-synced) or Free mode, sine or triangle shape, an Amount control and a stereo phase offset from 0 to 180 degrees.
Spread LFO: the same set of controls, applied to the spacing of the notches for less predictable movement.
Display: vertical bars show each notch and where it sits in the spectrum in real time.
Uses: classic phasing on guitars, keys and synths, resonant vocal-like swirls, and wide stereo atmospheres.

KVR lists version 1.3.0. A demo is available.

Source: BLEASS product page

When to use it

BLEASS Phaser is a simpler, low-cost alternative to PhaseMistress, the rated phaser with many vintage styles, but its second LFO on the notch spread and its adjustable notch count let it go past a plain sweep into odd, evolving textures. It covers less ground than ShaperBox 3 and Portal, which handle much broader movement effects. It does not model specific vintage pedals, so it suits sound design more than recreating a classic unit.

Best for: classic phaser sweeps, resonant swirls and wide stereo movement at a low price.
Genres: electronic, rock and ambient music.
Look elsewhere if: you want many vintage phaser styles (PhaseMistress) or more LFO shapes such as sample and hold.

What producers say

Users mostly praise the interface and presets; the main request is more modulation options.

Loopy Pro forum thread (on the iOS release) users called BLEASS UIs "very easy to use, pleasing to the eyes" and praised the presets.
Criticisms: users asked for more LFO types and envelope options, and one pointed to FAC Phazer's sample-and-hold LFO as something BLEASS Phaser lacks.

Loopy Pro forum thread

Where to buy

Best Service: $19.90
Plugin Boutique: $19.99
AudioDeluxe: $19.99
BLEASS: $22.70 (€19.99 converted to USD (ECB rate, 29 Sep 2026))

Tutorials and reviews

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