The Mile End Effects Sofort, Si Fort is a two-in-one fuzz pedal that combines Sovtek Big Muff and Ampeg Scrambler elements in a single enclosure1. Each fuzz circuit has its own footswitch and controls, so the two can be used separately or stacked1.
The controls
Section A is the green Russian Big Muff-style fuzz, with knobs for sustain (gain), level (volume), and filter (tone)1. The Scrambler-style section adds an octave knob and a blend knob1.
| Control | Section | What it does |
|---|---|---|
| Sustain | A | Gain for the Big Muff-style fuzz1 |
| Level | A | Volume for the Big Muff-style fuzz1 |
| Filter | A | Tone for the Big Muff-style fuzz1 |
| Octave | Scrambler section | From a hint of crispy harmonic content fully counterclockwise to extreme settings at maximum1 |
| Blend | Scrambler section | Adjusts how much of the Scrambler section is blended with the Muff circuit1 |
| Three-way switch | Below the filter control | Activates a mid-frequency bump1 |
On the octave control, Premier Guitar's reviewer wrote: "Turned fully counterclockwise, octave allows just a hint of crispy harmonic content. At maximum, it shrieks and careens"1. Of the blend knob, the reviewer said it "lets you adjust exactly how much of that madness you want prickling the Muff circuit's smooth-edged thundering"1.
One layout note from the review: the chicken-head knobs for tone and level in the A section touch at certain settings1.
Sovtek Big Muff and Ampeg Scrambler elements
The pedal's two sections draw on two familiar fuzz designs. Section A is modeled on the green Russian Sovtek Big Muff, a variant celebrated for its bass presence, and the reviewer noted that designer Justin Cober made sure that quality is preserved in the Muff-style circuit's low end1. The second section takes its character from the Ampeg Scrambler, an octave fuzz1.
The name combines German and French words meaning "immediately" and "so loud", which the reviewer tied to the pedal's output1. Visually, the pedal is a giant, army-green slab with crisp screenprint art and chunky Pultec EQP-1-style knobs, continuing the sharp orange and olive green color contrast introduced the year before on Mile End's Pique1.
On the sound, the reviewer reported: "Within seconds of plugging in and tweaking, I was conjuring Sunn O)))-worthy waves of low-mid bliss, and lively, whirling overtone chaos"1. At $213, the reviewer felt the pedal "feels like a steal"1.
Videos
Mile End Effects
Questions
Who designed the Mile End Effects Sofort, Si Fort?
The pedal comes from Mile End Effects, the Montreal pedal builder run by Justin Cober. Premier Guitar's review notes that Cober's pedals make big, bold statements, and credits him with preserving the bass presence of the Green Sovtek Big Muff variant in the pedal's Muff-style circuit.
What does Sofort, Si Fort mean?
According to Premier Guitar, the name combines German and French words meaning "immediately" and "so loud", a nod to the pedal's output. The pedal itself is a two-in-one fuzz combining Sovtek Big Muff and Ampeg Scrambler elements.
Can you use each fuzz circuit separately on the Sofort, Si Fort?
Yes. Each fuzz circuit has its own footswitch and controls, so the Big Muff-style section and the Scrambler-style section can be engaged independently or together.
What does the octave knob do on the Sofort, Si Fort?
The octave knob controls the Scrambler-style section. Turned fully counterclockwise it allows just a hint of crispy harmonic content, and at maximum the reviewer described it as shrieking and careening. A separate blend knob sets how much of that section is mixed with the Muff circuit.
How much does the Mile End Effects Sofort, Si Fort cost?
Premier Guitar's review, published 21 September 2026, lists the pedal at $213, which the reviewer called a steal.
Sources (1)
- Mile End Effects Sofort, Si Fort Review, Premier Guitar, 2026-09-20
