toxic twins pedal Reuss Evil Twin Mk II (preorder)

toxic twins pedal Reuss Evil Twin Mk II (preorder)Available to preorder Twelve new pedals expected ready for shipment in July August 2026 The Evil Twin Mk II is everything I have wanted to do, to improve the Reuss RSH 03 pedal, but sadly can't do because Rowland S. Howard is tragically not around to ask for approval For those not familiar to the concept, the RSH is a two in one pedal featuring accurate recreations of late Australian guitar genius Rowland S. Howard's 1970s MXR Distortion+ and Blue Box

Available to preorder - Twelve new pedals expected ready for shipment in July/August 2026

The Evil Twin Mk II is everything I have wanted to do, to improve the Reuss RSH-03 pedal, but sadly can't do because Rowland S. Howard is tragically not around to ask for approval

For those not familiar to the concept, the RSH is a two-in-one pedal featuring accurate recreations of late Australian guitar genius Rowland S. Howard's 1970s MXR Distortion+ and Blue Box pedals. It was the pedal that started Reuss Musical Instruments back in 2012.

My first goal when designing the Evil Twin Mk II was to make the fuzz intensity of the blue box based octave fuzz adjustable. In the original pedal, and in the RSH pedals, it is always maxed out, and it has to be this way for the primitive circuit to divide down the frequency and generate the weird monophonic octave-down tone. With less fuzz intensity, the tracking would fail.

But in collaboration with my brilliant Danish engineering partner, I found a way. With the Evil Twin Mk II you can back down the fuzz and still have the octave-down tone, with all it's glitchy goodness. I am pretty sure we are the first ever to have succesfully done this modification to the blue box circuit.

Apart from adding this key-feature, we did not mess a lot with the old blue box, because I think it looses its primitive lo-fi charm, if you attempt to clean it up too much and improve tracking and gating etc. In other words, it still sounds sick. And evil.

I always got complaints about the effects of the Rowland S. Howard pedal being too weak in output level, and it is true that they are not very loud, because that's how the vintage circuits are designed. But we fixed the loudness issue in the Evil Twin Mk II by adding a recovery gain stage to both circuits, so now they are VERY loud.

We also added a tone control to each circuit. In the octave fuzz circuit it serves as substitute for the 'C11 mod' switch inside the RSH-03 pedal, covering the range between the dark and muffled sounding unmodded circuit and the bright 'C11' mod.

In the distortion circuit the tone control is a treble filter, bleeding off the high frequencies. Turned all the way up, the tone control has no effect (no filtering), making the tone similar to the original, tone control-less vintage distortion+ circuit.

The distortion section of the Evil Twin Mk II can be preset to six different clipping configurations via switches inside the pedal:

• Germanium diode clipping (RSH / Distortion+)
• Silicon diode clipping (DOD 250)
• MOSFET transistor clipping
• Ge/Si hybrid clipping (first generation Reuss Old Black Shoe / Wine & Roses clipping)
• Ge/MOSFET hybrid clipping (Evil Twin mk II default)
• No clipping (makes it a very loud clean boost)

One of the things I believe has contributed to the RSH pedal's continued succes through ten years, is that the two effects in the pedals stacks so incredibly well. It's like the octave fuzz circuit becomes much more alive in combination with the distortion - which adds interesting overtones to the artificial, synth-like octave-down tones.

This quality lives on in the Evil Twin Mk II. Only a little more care has to be taken when dialling it in, because both sections of the pedal has become louder and wilder. Due to the added recovery gain stage, the octave fuzz circuit can now push the input stage of the distortion circuit much harder, making more extreme effects possible.

This also means there can be more craziness going on. The RSH was a wild beast, and I have had many emails from confused customers who could not understand all the weird clicking noises and stuff going on when the pedal was idling with both effects on and the guitar wide open. Well, there's more of that now, because all those little noises can be amplified even more. A lot more, actually. The Evil Twin is not a nice pedal. It's a wild and crazy creative tool, that you have to learn to master. So be warned.

Having said that, the Evil Twin Mk II is far more than an experimentalist’s noise tool. Both sides offers a very wide range of sounds, and it can also be more subtle and mild than with the RSH-03, because of the possibility of diminishing the fuzz intensity of the octave fuzz, and from the many different clipping options of the distortion section. The pure germanium clipping of the RSH (and original distortion+ pedals) clips more than the default Ge/MOSFET clipping setting of the Evil Twin Mk II, making the RSH-03 fuzzier and harder to dial in for subtle crunch.

I ship the pedals with the octave fuzz set to the standard two octaves down. The ‘fat switch’ of the distortion is default set to ‘ON’, and The 6dB boost switch is off (this is intended for use when the pedal is set to pure germanium clipping, which has less loudness).

Demo by Luca from Pedal Partners

Evil Twin mk II features and specifications

• Two-in-one pedal based on the Reuss RSH-03, which features vintage correct 1970s circuits of Rowland S. Howard’s old Distortion+ and Blue Box pedals. In the Evil Twin Mk II these circuits are modified and expanded
  
• Both circuits features an added recovery gain stage at the output sections to make them louder. The original vintage circuits suffers from a weak output
• Both circuits features an added tone control
• Both circuits features an added output buffer (compared to a vintage pedal). This ensures a uniform, high quality output signal to pass on in your chain
• The fuzz intensity of the blue box circuit is adjustable
• The monophonic octave-down tone is selectable between one or two octaves down
• The distortion circuit can be preset to six different clipping options
• The tone of the distortion circuit sound is slightly coloured to emulate the sound of an aged vintage pedal
• Vintage new old stock germanium diodes
• Vintage new old stock 2SC1849 transistors in the octave fuzz section (same as in vintage 1970s pedals)
• Extremely high build quality. Assembled by hand in the European Union. The pedals features a hybrid SMD construction, where the critical parts are hand soldered ‘trough hole’ in the traditional way, and the passive parts are surface mount (resistors and small capacitors)
• Powder coated enclosure in matte black finish with a subtle metallic sparkle effect and real silk screen printed graphics
• High quality Neutrik jacks ('top mount')
  
• Expensive Alpha brand upgrade quality foot switches  (good for at least 30000 stomps)
• Compact footprint: 11,9 x 9,4 cm (standard Hammond 1590BB size)
• Runs on a standard ’Boss-style’ 9V DC guitar pedal power supply or a 9V battery. The pedal accepts 9-18V, but no real advantage of running it higher than 9V
• Fully analog circuit with low power consumption, below 15 mA. The pedal can run a long time on a battery
• Worldwide shipping from Denmark. Orders posted before 2:00 PM Central European Time on weekdays ships same day

Inside the Evil Twin mk II:

Download the Evil Twin mk II manual here.

VERY IMPORTANT NOTICE: The prices at the webshop are listed without taxes. For customers in the European Union VAT is added at check-out. For pedals shipped to other countries, including the US and UK, local taxes and tariffs etc. will be charged by the local authorities. In some cases, these taxes, tariffs and clearance fees etc. will be claimed by the shipping company while the pedal is still in transit to the destination country, for a smooth and fast delivery without delays for custom's clearance. Different rules and regulations applies in different countries, so please check what the terms are where you live before posting an order, to avoid unpleasant surprises and disappointments. These things are beyond the powers of Reuss Musical Instruments to control.