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GAINBASSTREBLEVOLUME

125B · 4 knobs

Aion FX

HypercubeFuzz / Distortion

Based on the BOSS FZ-2 Hyper Fuzz· 1 other board clones it

Category
Fuzz· Fuzz, Distortion
Controls
Gain · Bass · Treble · Volume
Difficulty
Advanced
Price
$16.00in stock

From the vendor

A vintage-flavored octave fuzz with some modern improvements, this pedal has enjoyed increased popularity in recent years due to the association with bands such as Electric Wizard and Deftones.

The Hypercube Fuzz/Distortion is an adaptation of the BOSS FZ-2 Hyper Fuzz from 1993. The FZ-2 was not particularly successful and was discontinued without much fanfare a few years later in 1997, but has lately risen in popularity as one of Boss’s rare cult classics, in the same category as the HM-2 Heavy Metal or DC-2 Dimension C. Today, they routinely sell for USD$250 or more.

A switch selects between Fuzz I (flat) and Fuzz II (scooped) tone modes, and a third mode called Gain Boost that disengages the middle fuzz stages and connects the boost directly to the active tone stack for a relatively clean tone shaper.

The Hypercube is an exact replica of the FZ-2 in effect mode. The buffered bypass has been converted to true bypass, but the rest is the same.

The rotary switch has been replaced by a 3-way toggle switch, with one slight difference: in Gain Boost mode, the original circuit disables the volume control, presumably because it is somewhat redundant with the gain (boost) control—but it’s confusing and causes a large volume jump when switching between fuzz and boost.

The Hypercube preserves the output volume functionality across all three positions. If you want to use Gain Boost mode exactly the way it is in the original unit, just turn the volume control all the way up while in that mode.

This pedal has a specialized method of assembly that is different from most DIY builds, and because of this there are a lot of ways to make mistakes that are hard to fix. Please make sure to familiarize yourself with the assembly instructions in the build documentation before installing any of the components.

Note: This project uses a type of capacitor that has been temporarily discontinued by WIMA. Please see our news article about the issue and the substitution spreadsheet for project-specific recommendations. We are stocking a limited supply in the mean time. The build document has not yet been updated to reflect this.

Schematic

The schematic is in the vendor's build document, page 10. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 100 rows

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RefValueNormalizedTypeNotes
Resistors 47
R110k10kMetal film resistor, 1/4W
R21M1MMetal film resistor, 1/4W
R310k10kMetal film resistor, 1/4W
R422k22kMetal film resistor, 1/4W
R54k74.7kMetal film resistor, 1/4W
R62k22.2kMetal film resistor, 1/4W
R71k51.5kMetal film resistor, 1/4W
R82k22.2kMetal film resistor, 1/4W
R91k1kMetal film resistor, 1/4W
R1010k10kMetal film resistor, 1/4W
R11220k220kMetal film resistor, 1/4W
R12100k100kMetal film resistor, 1/4W
R134k74.7kMetal film resistor, 1/4W
R1410k10kMetal film resistor, 1/4W
R151k1kMetal film resistor, 1/4W
R16100k100kMetal film resistor, 1/4W
R1727k27kMetal film resistor, 1/4W
R181k1kMetal film resistor, 1/4W
R19100k100kMetal film resistor, 1/4W
R2027k27kMetal film resistor, 1/4W
R211k81.8kMetal film resistor, 1/4W
R2210k10kMetal film resistor, 1/4W
R2310k10kMetal film resistor, 1/4W
R2447k47kMetal film resistor, 1/4W
R2510k10kMetal film resistor, 1/4W
R2610k10kMetal film resistor, 1/4W
R27120k120kMetal film resistor, 1/4W
R281k1kMetal film resistor, 1/4W
R2910k10kMetal film resistor, 1/4W
R3010k10kMetal film resistor, 1/4W
R3127k27kMetal film resistor, 1/4W
R321k1kMetal film resistor, 1/4W
R33100k100kMetal film resistor, 1/4W
R3410k10kMetal film resistor, 1/4W
R353k33.3kMetal film resistor, 1/4W
R363k33.3kMetal film resistor, 1/4W
R37100k100kMetal film resistor, 1/4W
R3810k10kMetal film resistor, 1/4W
R39100k100kMetal film resistor, 1/4W
R4010k10kMetal film resistor, 1/4W
R41100k100kMetal film resistor, 1/4W
R421k1kMetal film resistor, 1/4W
R4310k10kMetal film resistor, 1/4W
R4410k10kMetal film resistor, 1/4W
R452k22.2kMetal film resistor, 1/4W
RPD2M22.2MMetal film resistor, 1/4W
LEDR4k74.7kMetal film resistor, 1/4W
Capacitors 28
C147n47nFilm capacitor, 7.2 x 2.5mm
C21uF1uFilm capacitor, 7.2 x 3.5mm
C32.2uF2.2uElectrolytic capacitor, 4mm
C447pF47pMLCC capacitor, NP0/C0G
C533n33nFilm capacitor, 7.2 x 2.5mm
C61uF1uFilm capacitor, 7.2 x 3.5mm
C71uF1uFilm capacitor, 7.2 x 3.5mm
C81uF1uFilm capacitor, 7.2 x 3.5mm
C947uF47uElectrolytic capacitor, 5mm
C101uF1uFilm capacitor, 7.2 x 3.5mm
C111n1nFilm capacitor, 7.2 x 2.5mm
C1247n47nFilm capacitor, 7.2 x 2.5mm
C134n74.7nFilm capacitor, 7.2 x 2.5mm
C141uF1uFilm capacitor, 7.2 x 3.5mm
C1547pF47pMLCC capacitor, NP0/C0G
C1615n15nFilm capacitor, 7.2 x 2.5mm
C171uF1uFilm capacitor, 7.2 x 3.5mm
C1847pF47pMLCC capacitor, NP0/C0G
C1915n15nFilm capacitor, 7.2 x 2.5mm
C20150n150nFilm capacitor, 7.2 x 2.5mm
C2147n47nFilm capacitor, 7.2 x 2.5mm
C2247pF47pMLCC capacitor, NP0/C0G
C231uF1uFilm capacitor, 7.2 x 3.5mm
C241uF1uFilm capacitor, 7.2 x 3.5mm
C2510uF10uElectrolytic capacitor, 5mm
C2647uF47uElectrolytic capacitor, 5mmPower supply filter capacitor.
C27100uF100uElectrolytic capacitor, 6.3mmPower supply filter capacitor.
C2847uF47uElectrolytic capacitor, 5mmReference voltage filter capacitor.
Diodes 3
D11N58171N5817Schottky diode, DO-41
D21N9141N914Fast-switching diode, DO-35
D31N9141N914Fast-switching diode, DO-35
Transistors 9
Q1J201J201JFET, N-channel, SOT-23Substitute. Original uses 2SK184-GR.
Q2J201J201JFET, N-channel, SOT-23Substitute. Original uses 2SK184-GR.
Q3J201J201JFET, N-channel, SOT-23Substitute. Original uses 2SK184-GR.
Q42N39062N3906BJT transistor, PNP, TO-92Substitute. Original uses 2SA1335-GR.
Q52N50882N5088BJT transistor, NPN, TO-92Substitute. Original uses 2SC3378-GR.
Q62N50882N5088BJT transistor, NPN, TO-92Substitute. Original uses 2SC3378-GR.
Q72N50882N5088BJT transistor, NPN, TO-92Substitute. Original uses 2SC3378-GR.
Q82N50882N5088BJT transistor, NPN, TO-92Substitute. Original uses 2SC3378-GR.
Q92N50882N5088BJT transistor, NPN, TO-92Substitute. Original uses 2SC3378-GR.
ICs 2
IC1JRC4558DJRC4558DOperational amplifier, DIP8
IC2JRC4558DJRC4558DOperational amplifier, DIP8
Potentiometers 3
BASS50kBB50k16mm right-angle PCB mount pot
GAIN50kAA50k16mm right-angle PCB mount pot
LEVEL50kAA50k16mm right-angle PCB mount pot
Switches 2
MODEDPDT on-on-on TDPDT ON-ON-ON Toggle switch, DPDT on-on-on
FSW3PDT3PDTStomp switch, 3PDT
Jacks & sockets 5
IC1-SDIP-8 socketDIP-8 SOCKETIC socket, DIP-8
IC2-SDIP-8 socketDIP-8 SOCKETIC socket, DIP-8
IN1/4" mono1/4" MONO1/4" phone jack, closed frameSwitchcraft 111X or equivalent.
OUT1/4" mono1/4" MONO1/4" phone jack, closed frameSwitchcraft 111X or equivalent.
DC2.1mm2.1MMDC jack, 2.1mm panel mountMouser 163-4302-E or equivalent.
Hardware 1
ENC125B125BEnclosure, die-cast aluminumCan also use a Hammond 1590N1.

Other boards based on the BOSS FZ-2 Hyper Fuzz