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ZVEX EFFECTS 

Super Duper 2-in-1™

INTRODUCTION:

Gentlemen/women, start your engines. This pedal is so dangerous that I’m sure I’ll be getting a lot of complaint 
emails that people have blown up their amps using it. So let’s just start this off by saying I WARNED YOU TO BE 
CAREFUL. When using this pedal, start off slow, and monitor your amp for potential damage. Don’t have too much 
fun! OK, have too much fun, but don’t blow up your amp in the process. Unless that’s what you want, of course, and 
well, gosh darn it, it’s your right. Good ol’ Pete Townsend did it. Well, at least he poked his speakers out. All right, I’ll 
try to stay on track here.

Ahem. The SUPER-DUPER 2-IN-1™ has two of my infamous but rather delightful Super Hard-On™ pedals in one 
small box. Also, in this SUPER-DUPER 2-IN-1™ is a Master Volume control that lets you use it as an overdrive/dis-
tortion with any output volume. My my! How conventional, you say! Well, suffice to say, if it weren’t there, you’d go 
deaf with both of those channels cranked up. This pedal is dangerously loud. Don’t do what I did, and lean over in 
front of your speaker cabinet while turning it up. Ouch. Dang.

CHANNEL 1:

This channel is a conventional Super Hard-On (TM), which I will henceforth refer to as the SHO, in order to reduce 
potential offense to young ears and sensitive persons. Its gain control is on the far right, and it’s LED is yellow. If you 
are familiar with the SHO, you’ll know that it’s a very sparkly sounding high input-impedance preamp with incredible 
headroom, wide-ranging gain (unity to 60 X), and a maximum volume that will knock out your fillings. Channel one 
has no Master Volume control, but it’s cascaded into Channel 2, which does...

CHANNEL 2 AND THE MASTER VOLUME

This channel has the very same circuit as Channel 1, but the bleeder resistor on the output has been replaced with a 
Master Volume control, which allows the user to turn down the output volume even if the gain is set quite high. The 
knob on the left is the gain, and the middle knob is the Master Volume, and the LED is red. When both channels are 
on, or if only Channel 2 is on, the Master Volume is active. If you leave the Master wide open, you have two identical 
SHO pedals in one box, which are cascaded.

WHAT DOES THIS PEDAL SOUND LIKE?

You might wonder just how insane this pedal sounds when you crank up both channels and turn them both on. Well, 
I’ll tell you. I can’t get my Les Paul to stop feeding back at any audible volume level on my Marshall when both chan-
nels are wide open, and that’s with the amp set at 1. I’m happy about that. Of course, this is not the only setting on 
the pedal. I don’t think there’s a musician around who wouldn’t be happy to have multiple clean boost pedals set to 
predictable levels available on stage. This pedal gives you a total of four volume levels, ranging, at your choice, any-
where from perfectly clean to ragingly overdriven. Level 1, your guitar is true-bypassed with both channels off. Level 
2, you turn on Channel 1. Level 3, you turn off Channel 1 and turn on Channel 2. This is easy because you can put 
your foot on both switches at once and alternate between the two channels if you want. Level 4, you turn on both 
channels.

There is no tone shaping in this pedal. It’s two perfectly linear high-gain high input-impedance preamps that can be 
cascaded, with a total gain that ranges from unity to 3600. That’s right, the maximum gain with both channels wide 
open is a whopping 3600, which is so completely distorted, hissy, feedbacky, and insane, that you’ll never ever have 
a steady relationship again. Or a lease. Or a pet. Luckily, with the Master Volume, you can listen to what it would 
sound like to lose everything you love at a reasonable volume. Naturally, because there is no tone-shaping, your 
guitar just sounds like a really loud version of your guitar, and your amp sounds like a really big version of your amp, 
and if your normal tone is somewhat bloated, it will get very very bloated when you use this pedal set to high gains. 
It does best if you are close to getting the tone you want out of your gear already, but just need a boost to make 
it go over the top. Keep in mind that you can set up the two channels to give you any amount of gain, from a soft 
bluesy boost in two stages to a crunchy rock level, to a wild sustaining beast.

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