The Dr. No Siamese Twin SkullFuzz is a handmade fuzz pedal that packs three effects into one sculpted housing: a fuzz in the SkullFuzz lineage, a 4-gain-stage distortion, and a hybrid Chorus/Phaser. Dr. No describes the result as an "intense, deep sound that still cuts through," aimed at the two effects that dominate The Smashing Pumpkins' 1993 album Siamese Dream1. It is an analog circuit1, and it is a limited series of five, built to order1.
What it is and where it came from
The starting point, according to Dr. No, was Siamese Dream by The Smashing Pumpkins from 1993. The maker describes the pedal as a portrait of that record, built around its two dominant sounds: "The analog circuit consists of two parts that are dominant on the record: a Distortion and a Chorus/Phaser"1. Dr. No treats the guitar effect as a canvas, tagging the pedal an "Arteffect," and the housing reflects the theme: two cast skulls fused together "to stay true to the Siamese Twin feel," housed like a curiosity cabinet1.
The base design is the maker's own SkullFuzz, which Dr. No chose, in his words, "because its form and concept could hold all of that weight"2. The SkullFuzz line has run for years in many forms, including the Dr.No SkullFuzz, the Art SkullFuzz, and one-off builds like the Flying SkullFuzz; the SkullFuzz itself has carried a heavy fuzz effect since at least 20163.
The circuit: distortion and Chorus/Phaser
The distortion section is a rebuild of Dr. No's Kafuzz. On the product page the maker says he "had to heavily modify my Kafuzz to get closer to that intense, deep sound that still cuts through"1, and in the July 2026 announcement he put it more strongly:
"Dr. No totally rebuilt His Kafuzz from the ground up to reach that sound: deep, saturated, but still sharp enough to slice"
The distortion is described as a 4-gain-stage overdrive design1.
The modulation side is a hybrid Chorus/Phaser, a single circuit that covers both effects. Dr. No describes it as one that "drifts, at times, into UniVibe territory," which he calls "the exact kind of movement you hear all over" the record that inspired the pedal2. Players looking at that side of the design separately can compare it with dedicated chorus and phaser pedals, though here the two are fused into one section alongside the fuzz and distortion.
The two sections at a glance:
| Section | What it is | What Dr. No says about it |
|---|---|---|
| Distortion | 4-gain-stage overdrive design, rebuilt from the Kafuzz | "deep, saturated, but still sharp enough to slice"12 |
| Chorus/Phaser | Hybrid modulation circuit covering both effects | "drifts, at times, into UniVibe territory"2 |
| Housing | Two cast skulls fused together | "to stay true to the Siamese Twin feel"1 |
Limited series and build
This is not a production pedal. The series is capped at five units, each built to order and customizable in color, because, as Dr. No puts it, "an artifact like this should feel personal and exclusive"1. The detail work is the reason for the wait: "Because of the level of detail, each build takes 8 weeks"1. The design itself took time as well; the maker describes "the 3-month puzzle and search to bring the idea to life" before the series was announced on 21 July 202612.
How the series works:
- Limited to 5 units in total1
- Each pedal built to order1
- Color customizable per buyer1
- Each build takes 8 weeks because of the level of detail1
- Listed at €1,993.00 EUR as of 25 October 20261
The Siamese Twin SkullFuzz is a limited series of five, made exclusively to order, with each unit customizable in color1. The list price is given in euros, €1,993.001.
Questions
How much is the Dr. No Siamese Twin SkullFuzz?
Dr. No lists the Siamese Twin SkullFuzz at €1,993.00 EUR on the maker's webshop as of 25 October 2026. The price is given in euros, and each pedal is built to order, with buyers able to customize the color of their unit.
How many Siamese Twin SkullFuzz pedals are being made?
The series is limited to five pedals. Each one is built to order and can be customized in color. As of 25 October 2026, Dr.
How long does a Siamese Twin SkullFuzz take to build?
Each build takes 8 weeks, which Dr. No attributes to the level of detail in the pedal. The design process itself was also lengthy: the maker describes a 3-month puzzle and search to bring the idea to life before the series was announced in July 2026.
Is the Siamese Twin SkullFuzz analog?
Yes. Dr. No describes the circuit as analog, consisting of two parts dominant on the record that inspired it: a Distortion and a Chorus/Phaser. The distortion is a 4-gain-stage overdrive design.
What is the Siamese Twin SkullFuzz inspired by?
The starting point was Siamese Dream by The Smashing Pumpkins from 1993. Dr. No built the pedal around the two effects dominant on that record, a distortion and a chorus/phaser, and fused two cast skulls into the housing to stay true to the Siamese Twin feel.
Is the SkullFuzz based on the Kafuzz?
The distortion section is. Dr. No says he heavily modified his Kafuzz circuit to reach the intense, deep sound that still cuts through, and in a July 2026 announcement described totally rebuilding the Kafuzz from the ground up for this design.
Sources (3)
- SIAMESE SKULLFUZZ, A PORTRAIT OF SIAMESE DREAM, Dr. No effects webshop
- SIAMESE SKULLFUZZ A PORTRAIT OF SIAMESE DREAM, Dr. No Effects, 2026-07-21
- Dr.No's Fuzzadelic SkullShow at RoadBurn 2016, Dr. No effects, 2016-04-15
