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Foxrox Hot Silicon 2 Fuzz
Foxrox Hot Silicon 2 Fuzz

Our Price: $219.00

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Guitar cables

Add a CBI Ultimate 15 foot Guitar Cable $26 [Add $26.00]Add a great sounding 15 foot long guitar cable, black with straight metal soldered Neutrik ends.
Power Cables for your existing multi-power supply

18" Power Cable for PP2 (one straight and one 90 degree end, unless specified in comments) $3.99 [Add $3.99]Does not work with our $15 Boss type power supplies, has 2 male ends for use with multi-outlet supplies like Voodoo Labs, etc
Optional power supplies

Add a Power Supply:
US 120V 9vDC $15 [Add $15.00]- This is a normal 9V Boss type external power supply/adaptor for USA use with 120V AC wall power.

Add a Power Supply:
Euro 240V $15 [Add $15.00]- this is an external power supply/adaptor for use with 220/240V AC to make 9Vdc for the pedal.

Add a Power Supply:
UK 240V $15 [Add $15.00]- this is an external power supply/adapter for use with UK (3 prong) 220/240V AC to make 9Vdc for the pedal.

Description Technical Specs
Analog Man carries the Foxrox Hot Silicon 2 Fuzz. A great '70s style Fuzz Face Clone built to last. Uses high-gain BC109C silicon transistors, like many of the original silicon FuzzFaces, and the Crest Audio reissues from the late 80's.
Owner's ManualDownload HS2 manual

For years people have been asking Dave Fox about this..and he's finally doing it!

Hot Silicon2 is based on the legendary Dallas Arbiter Fuzz Face. Specifically, the version that was produced by Dallas Music Industries, Inc between 1986 and 1990. DMI, Inc also manufactured Crest Audio power amplifiers and Kelsey Mixing boards. These Fuzz Faces came to be referred to as "Crest Reissues" because they were built in the same factory as the Crest amps. In fall of 1986, a young Dave Fox (founder of Foxrox), while working for DMI, Inc, brought the Dallas Arbiter Fuzz Face back from extinction. These Fuzz Faces were based on the silicon version from the 1970's but they also had a tone all their own.

Hot Silicon Fuzz (HSF) is the same Hot Silicon previously available as a FuzzCard for Captain Coconut 2. HSF uses a pair of high-gain BC109C silicon transistors, just like many of the original silicon FuzzFaces, and all of the Crest Audio reissues from the late '80s.

The Foxrox Hot Silicon Fuzz is based on the most famous fuzz of all, the Dallas Arbiter FuzzFace. The FuzzFace has gone down in history as one of the most erratic, but coolest sounding fuzz effects ever made. They all sounded slightly different due to a number of variables including temperature, transistor gain and quality, battery level and pickup output levels. FuzzFaces could sound dull, bright, smooth, gritty, and sometimes so choppy that they were unusable. There were two different types of FuzzFaces, the original PNP Germanium version and the NPN Silicon version which followed. The Foxrox Hot Silicon Fuzz is based on the NPN Silicon FuzzFace.

HSF specializes in the hotter, brighter side of Fuzz. The transistors are high gain silicon (BC109C), which are hand picked and custom matched for the best sounds. The sound is more high-endy than other versions, and there is no shortage of gain and sustain at normal playing levels. At high gain settings, it can get unruly, breaking into oscillation and noise. Under certain conditions it can even pick up radio broadcasts, although measures have been taken to avoid this. It can also oscillate when fed by a wah wah pedal. While these might seem like bad things they are part of what it takes to recreate certain classic sounds, including many of the live Hendrix recordings from 1969 / 1970 such as Woodstock, Band of Gypsies and Isle of White. With the right settings, this fuzz can be tamed, but the out-of-control aspect is what makes it unique. If you would prefer that your wah pedal does not interact with the fuzz, check out the Foxrox Wah Retrofit.


  • Fuzz allows you to back off on the intensity of the fuzz. This is useful when looking for special vintage sounds and when driving more overdrive stages. This is also great if you want to dial in some wimpy fuzz tones for effect. If you want the fuzz to clean up when you role back your guitar�s volume knob, back off a little on the Fuzz control. You can dial in a massive range of great sounds just by playing around with the Grit control, the Fuzz control, and your guitar�s volume and tone controls.
  • Grit makes Hot Silicon different from other similar fuzz boxes. This knob allows you to fine tune the attack, tone and fuzz level. The control is subtle, but very effective. As a continuous control, you can dial in the exact sound you want. Here are some examples of what to expect as you try out different Grit settings:
    Counter clockwise: Dull loud tone. Sounds great when overdriving a tube amp, or pushing an already overdriven amp over the top. This is a very fat fuzz sound that can be heard on lots of old recordings from the �60s and �70s.
    Middle: Even tone with lots of fuzz and sustain. This is the most user-friendly of all the settings. The tone is very round, without sputter. If you like to clean up your sound by turning down your guitar�s volume knob, the Grit control should be set between 10:00 and 1:00.
    Clockwise: Clipped, farty and burnt out. If you�re looking for some of the nastier fuzz sounds, experiment with Grit settings in the 2:00 to 5:00 (max) area. The sound gets very choppy while you pick and the sustain trails off abruptly. This sound can be pretty ugly at times, but it�s great for reproducing certain vintage tones that originally occurred due to unmatched transistors or drained batteries. Extreme Grit settings sound great when your amp is turned up loud. Stand near your amp and play around with the feedback.
  • Volume - The Hot Silicon Fuzz is set up to have more than enough gain for those who like it LOUD. Changes in the Grit control have a direct effect on the output level, so you may need to make some volume adjustments while dialing in your sound.
  • Input Trim - Hot Silicon Fuzz includes an internal trim pot that adjusts the amount of loading at the input stage.

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