The Fredric Effects Unpleasant Companion MKII is a fuzz pedal built as an improved version of the classic Shin-Ei FY-2 Companion Fuzz, an early 1970s silicon transistor fuzz that was sold under various brand names1. Fredric Effects describes it as "a harsh transistor fuzz unlike any other!" and says it "accurately captures the sound of the original, but also adds a bit more".
The biggest additions over the vintage pedal are practical ones. Where the original FY-2 suffers from a volume drop, the MKII carries a volume boost circuit to avoid it, and a Scoop control lets you shape the midrange character that defines the Companion Fuzz sound2.
What it does to your sound
The Companion Fuzz circuit the MKII reproduces is known for a scooped midrange character, which Aion FX describes as the defining trait of the FY-23. Guitar Pedal X's reviewer, Stefan Karlsson, characterized the MKII as having "a gated, scratchy, starved and spiky silicon fuzz character"4.
Fredric Effects positions the MKII as an evolution of its earlier FY-2 variants rather than a straight clone. The company says the pedal "accurately captures the sound of the original, but also adds a bit more," with the volume boost circuit and the Scoop control doing the adding2.
Controls and switching
Guitar Pedal X lists the full control set from the maker's page4:
| Control | What it does |
|---|---|
| Gain | Sets the fuzz amount |
| Volume | Sets the output level |
| Blend | Mixes in clean signal |
| Tone | Shapes the fuzz tone |
| Scoop | Adjusts the mid-scoop, added "to add to the versatility of the effect" |
| Blend Bypass Switch | Removes the blend circuit entirely |
| Tone Bypass Switch | Removes the tone circuit entirely |
| EQ order switch | Runs Tone into Scoop, or Scoop into Tone |
The bypass switches matter for players chasing the vintage sound: the original FY-2 had none of this shaping, and bypassing the tone and blend circuits gets you closer to it, while the reorder switch changes whether the scoop acts on the raw fuzz or the tone-shaped signal5.
From the Shin-Ei FY-2 to the MKII
The Shin-Ei FY-2 Companion Fuzz was an early 1970s silicon transistor fuzz, available under various brand names, and DIY builders have reproduced its layout with transistors including 2N3904, 2SC828, 2N2222 and 2N5088316. Its weakness was level: Aion FX notes that "the original unit suffers from excessively low volume"3.
Fredric Effects has built a whole family of pedals around this circuit:
- The Unpleasant Companion, the standard FY-2 clone with the volume boost circuit
- The Deeply Unpleasant Companion, a bass-oriented version with a clean blend, announced in December 20157
- The Super Unpleasant Companion, which combines the FY-2 with the FY-6 Superfuzz in one enclosure89
- The Nouveau Super Unpleasant Companion, now discontinued and superseded by the Petite Super Unpleasant Companion
The MKII sits at the extended end of that family. Premier Guitar reviewed the earlier Deeply Unpleasant Companion with its "dials for volume level and fuzz tone," and the MKII builds outward from that base with the gain, blend, tone and scoop shaping104.
What reviewers said
Guitar Pedal X reviewed the MKII in March 2025 and was positive about the design4:
"Tim has done a great job of extending the Companion Fuzz format - with lots of neat additional features to help you get"4
Stefan Karlsson, Guitar Pedal X4
The same review credits designer Tim with designing the pedal "so smartly," pointing to the bypass and EQ-order switching as the features that make the extended format workable4.
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Questions
What pedal is the Unpleasant Companion MKII based on?
It is an improved version of the classic Shin-Ei FY-2 Companion Fuzz, an early 1970s silicon transistor fuzz sold under various brand names. Fredric Effects describes it as accurately capturing the sound of the original while adding a bit more, including a volume boost circuit.
What does the Scoop control do on the Unpleasant Companion MKII?
The Scoop control adjusts the mid-scoop that defines the Companion Fuzz sound. Fredric Effects added it to increase the versatility of the effect, and a push-button lets you reorder the tone and scoop circuits so you can run tone into scoop or scoop into tone.
Does the Unpleasant Companion MKII lose volume like vintage Companion fuzzes?
No. Vintage Shin-Ei FY-2 pedals are known for a volume drop, and the original unit suffers from excessively low volume. The MKII includes a volume boost circuit specifically to avoid that characteristic volume drop.
Is the Unpleasant Companion MKII a silicon fuzz?
Yes. The Shin-Ei FY-2 it is based on was a silicon transistor fuzz, and Guitar Pedal X's reviewer described the MKII as having a gated, scratchy, starved and spiky silicon fuzz character.
Sources (10)
- Earthquaker Devices Terminal Fuzz review, MusicRadar, 2014-11-14
- Unpleasant Companion, Fredric Effects
- Constellation Vintage Fuzz / Shin-ei Companion FY-2, Aion FX, 2019-11-25
- Guitar Pedal X, Guitar Pedal X, 2025-03-19
- Shin-Ei FY-2 Companion Fuzz clone FY2 with clean blend for bass guitar, Fredric Effects
- Guitar FX Layouts: Shin-Ei FY-2 Companion Fuzz with mods, Guitar FX Layouts (tagboardeffects.blogspot.com), 2014-03-25
- Fredric Effects Announce the new Deeply Unpleasant Companion Bass Fuzz Pedal, Guitar Interactive Magazine, 2015-12-04
- Super Unpleasant Companion, fredric.co.uk
- Super Unpleasant Companion by Fredric Effects, RockBoard (www.rockboard.de), 2026
- Fredric Effects Deeply Unpleasant Companion Review, Premier Guitar, 2016-07-08









