The Flamma FV04 is a vocal harmony pedal with reverb built by Flamma Innovation, pitched at singers who perform with a guitar. Flamma lists it as the "FLAMMA FV04 Harmony Vocal Pedal with Reverb Effects for Professional Singer," and its headline feature is harmony generation: 12 pitches with 11 different harmony modes, so the pedal can sing along with the vocalist at intervals the player selects1.
What it does
The FV04 takes a microphone signal and produces harmony parts from it, with the guitar input used to inform the harmonies. Flamma gives it 12 pitches spread across 11 different harmony modes1. Reverb is built in alongside the harmony engine, covering the two effects a working singer most often needs on a gig1.
For output, the pedal offers two different output modes: a mixed signal, or individual signals from the guitar and microphone. That means a player can send one blended feed to the front of house, or keep the vocal and guitar paths separate for the mixing desk to handle1.
Price and availability
Flamma Innovation's product page listed the FV04 as sold out as of 26 October 20261. Within the same line, the Flamma FV02 Doubling Vocal Effects Pedal, Flamma FV01 and Flamma FV03 cover related vocal effects.
Where it sits
The FV04 belongs to the vocal effects family covered on the site's Vocal Pedals page. Harmony is its core function, which puts it alongside pedals such as the TC Helicon VoiceTone H1 and the Boss VE-2 Vocal Harmonist, while its combination of harmony plus reverb in one box resembles the approach of the TC Helicon Harmony Singer 2.
Videos
Medins Make Music
The Loop Academy - JohnPaul Music UK
Guitar Learner
Questions
How many harmony voices does the Flamma FV04 produce?
Flamma Innovation lists the FV04 as offering 12 pitches with 11 different harmony modes, so a singer can generate harmony parts above or below the lead vocal across a wide range of intervals. It also includes reverb, and it provides two output modes, letting the user send a mixed signal or individual signals from the guitar and microphone.
Is the Flamma FV04 still available?
As of 26 October 2026, the FV04 was listed as sold out on Flamma Innovation's own product page, with a regular price of $138.00 USD. Players looking for a current alternative in the same family can look at the Flamma FV02 doubling pedal or the FV03.
Sources (1)
- FLAMMA FV04 Harmony Vocal Pedal with Reverb Effects for Professional S, Flamma Innovation (www.flamma.shop)
