The company's approach is visible across its catalog: take a vintage circuit, keep its character, and fix the practical problems that come with 1960s and 1970s hardware. Its Harmonic Percolator Interfax Spec, for example, puts the 1970s Interfax circuit "in a modern pedal-board friendly package, with DC power, LED indicator and normal rotary pots instead of sliders"2.
"We enjoy working directly with bands, labels and shops to create custom batches of effects pedals. These have been sold"
The story: a North London fuzz builder
Fredric Effects is a North London effects builder. The company describes its pedals as handmade boutique pedals, all made in North London, and positions them as an affordable alternative to higher-priced boutique fuzzes3. Its product announcements have come directly from the builder, issued from North London, UK4.
The company's announcements include its own versions of classic circuits. In September 2014, Fredric Effects announced the Utility Perkolator, describing it as its latest version of the fabled Interfax Harmonic Percolator5. Further announcements have followed from its North London base, including one in March 20195.
Key dates from the maker's announcements in the press:
| Date | Announcement |
|---|---|
| September 2014 | Utility Perkolator, the builder's latest version of the fabled Interfax Harmonic Percolator5 |
| March 2019 | A new pedal announcement issued from North London, UK6 |
Known for the Demon Fuzz and Unpleasant Companions
The Demon Fuzz is a fuzz pedal built on the basic IC Muff Fuzz circuit, which Fredric Effects describes as "a new take on a classic circuit"7. The Unpleasant Companion family is larger and longer-running, all of it rooted in the Shin-Ei FY-2 Companion Fuzz:
- Unpleasant Companion MKII: what the maker calls "a harsh transistor fuzz unlike any other!"8
- Deeply Unpleasant Companion: the MkI added a clean blend for bass guitar, plus a volume boost circuit to counter the volume drop of vintage FY-2 pedals9. The MkII is an evolution of that variant, keeping the boost circuit10
- Super Unpleasant Companion: announced in 201211; RockBoard's PedalPedia lists related Fredric Effects pedals including the Demon Fuzz V1, West Germany Vintage Tremolo, Deeply Unpleasant Companion Mk1 and Bugcrusher12
- Nouveau Super Unpleasant Companion: discontinued13
- Petite Super Unpleasant Companion: the current version, combining the Shin-Ei FY-2 Companion Fuzz and FY-6 Superfuzz in one pedal, superseding the Nouveau, which the builder made for almost a decade14
- Unpleasant Companion Mufftone Special: a "waspy velcro-ripping fuzz with lots of control", made in multiple small runs over the years with tweaks to each version15
The Nouveau Super Unpleasant Companion is discontinued. Fredric Effects' current version of the combined FY-2 and FY-6 design is the Petite Super Unpleasant Companion1314.
Beyond fuzz: the wider range
Fredric Effects also builds pedals outside fuzz. The Harmonic Percolator Interfax Spec is a part-for-part clone of the 1970s Interfax Harmonic Percolator, an oddball overdrive/distortion pedal, modernised for pedalboards2, and a Silicon Harmonic Percolator variant also exists16. The Dresden Synth Fuzz is described by the maker as "a quite unique pedal"17. The West Germany Vintage Tremolo reworks the classic West German pedal18, and the KC Buffer carries the buffer stage from a famous boutique overdrive pedal19. The King of Klone is hand-wired, with twin PCBs of the builder's own design20.
Custom batches for bands, labels and shops
Custom work is a stated part of what Fredric Effects does. The builder says it enjoys working directly with bands, labels and shops to create custom batches of effects pedals, which have been sold as band merchandise and via crowdfunding campaigns1. This is a different kind of custom work from the fully bespoke Custom Shops run by some larger makers: Fredric's model is built around small production runs for a specific customer rather than one-off designs.
Where the pedals are sold
Fredric Effects pedals are available direct from the builder and from selected shops and online retailers21. Pricing the builder has given includes the Verzerrer at £1406, and an octave/ring mod pedal listed at $130 USD22.
The range (33)
News
Questions
Where is Fredric Effects based?
Fredric Effects is a UK builder based in London. Press announcements have described the company as London-based and UK-based, and its own site is fredric.co.uk. It is a small operation that builds pedals in-house and takes on custom batch work alongside its regular range.
What is the Fredric Effects Deeply Unpleasant Companion?
The Deeply Unpleasant Companion is Fredric Effects' take on the Shin-Ei FY-2 Companion Fuzz. The MkI version added a clean blend so bass players could keep their low end, and both MkI and MkII include a volume boost circuit to avoid the volume drop that vintage Shin-Ei FY-2 pedals are known for. The MkII is described by the maker as an evolution of that popular variant.
Is the Standard Fuzz Machine good value?
The Standard Fuzz Machine is Fredric Effects' version of the classic Ibanez Standard Fuzz, announced in April 2017. At launch it was listed at £100. Whether it is good value depends on what a player wants from a vintage-style fuzz, and the maker's own pages are the main published description of the pedal.
Can bands order custom Fredric Effects pedals?
Yes. Fredric Effects says it enjoys working directly with bands, labels and shops to create custom batches of effects pedals, which have been sold as band merchandise and through crowdfunding campaigns. Players interested in a custom batch can contact the builder through the fredric.co.uk site.
What is the difference between the Super Unpleasant Companion and the Petite version?
The Petite Super Unpleasant Companion combines a Shin-Ei FY-2 Companion Fuzz and an FY-6 Superfuzz in one pedal, and it supersedes the Nouveau Super Unpleasant Companion, which Fredric Effects built for almost a decade and which is now discontinued. The Petite is the current version of the design.
Sources (22)
- Fredric Effects, Fredric Effects
- Interfax Spec Harmonic Percolator, Fredric Effects
- Fredric Effects Standard Fuzz Machine: Recreating vintage Ibanez fuzz magic, gearnews.com, 2017-04-25
- Fredric Effects releases Accomplished Badger boost effects pedal, musicradar.com, 2016-09-15
- Industry Insider: Fredric Effects reinterprets European and Soviet-era preamps into beloved pedals, guitar.com
- Fredric Effects’ new Regent 150 brings vintage Soviet sounds to modern ’boards, guitar.com
- Demon Fuzz, fredric.co.uk
- Unpleasant Companion, Fredric Effects
- Shin-Ei FY-2 Companion Fuzz clone FY2 with clean blend for bass guitar, Fredric Effects
- Shin-Ei FY-2 Companion Fuzz clone FY2 with clean blend for bass guitar, Fredric Effects
- Fredric Effects Launches New Fuzz Pedals Series, Premier Guitar, 2012-12-04
- Super Unpleasant Companion by Fredric Effects, RockBoard (www.rockboard.de), 2026
- Nouveau Super Unpleasant Companion, Fredric Effects
- Petite Super Unpleasant Companion, Fredric Effects
- Unpleasant Companion, Fredric Effects
- Silicon Harmonic Percolator, fredric.co.uk
- Dresden Synth Fuzz, fredric.co.uk
- West Germany Vintage Tremolo, fredric.co.uk
- Kl*n Buffer, Fredric Effects
- King of Klone, fredric.co.uk
- Fredric Effects Launches New Fuzz & Tremolo Pedals, Premier Guitar, 2013-09-20
- Tools for the Task: Ring Modulators, Premier Guitar, 2018-02-02

















