
Electro-Harmonix Big Muff
The Electro-Harmonix Big Muff was what Jimi Hendrix used on the "Star
Spangled Banner". Of course he also had a couple Marshall stacks
to help with the sustain :) This is the truly legendary distortion
box that I remember from the mid-seventies. It's a very simple box
that has only three knobs. The Volume knob controls how the output
signal amount. The Sustain control creates more drive and saturation
that ends up sounding like it has more sustain. The tone knob controls
how much treble is taken out. The sustain control's output is full
of upper odd and even harmonics and the tone control is used to mellow
it out. If you turn it to the left you get a more sine tone sound of
distortion while turning it to the right you'll end up with more harmonic
elements that sound bright to metallic.

Electro-Harmonix BassBalls
The Electro-Harmonix BassBalls is dynamic filtering guitar effect. It uses two dynamic filters that follow your guitars output where each filter uses a different frequency. This results in an ongoing shift in the peaks and notches of the signal. It has a human voice like sound that simulates speech. It has a distortion mode that amplifies the human vowel like sounds. This effect is made for both guitar and bass guitar. The Electro-Harmonix Bassballs is an envelope follower pedal that is made for electric guitars and basses. It consists of twin dynamic envelope followers that are tuned sweeping filters that respond to the attack differences of your playing and create shifting peaks and troughs (notches/comb filters) that produce human vowel like sounds. It also includes a distortion mode that amplifies the overtones created by the filters. It also deepens the resonance of the effect. The sensitivity knob controls the depth of the filter's dynamics. You can tune the effect to your guitar.

Electro-Harmonix Bass Micro Synth
The Electro-Harmonix Bass Micro Synth is a bass guitar effect that processes your bass in such a way to create a more synthesizer type of sound. The sounds range form fairly pure tone like to distorted square waves. You use the ten sliders to shape the attack tone release and other parameters. There are four voices that can be mixed and processed by sweepable filters. This bass version is very similar to the guitar version but is tailored for the bass guitar.
Features
- Ten sliders shape your sound
- Four independent mixable voices
- Sweepable resonant filter
- specifically tailored for bass

Electro Harmonix Guitar Micro Synth
The Electro Harmonix Guitar Micro Synth is a guitar synth that processes the output of a guitar and makes it have a "synth" type of sound. It uses 4 independent voices that are mixed together and then modified. The sound modification is done using the 10 sliders that create sounds ranging from the more sine tone sound to a hot and nasty distorted square wave type of sound. The number of combinations that can be created are almost limitless. The 10 sliders shape the sound using 4 voices using sweepable filters. There is also a bass version available. This version is geared towards the guitar.
Features
- Ten sliders shape your sound
- Four independent mixable voices
- Sweepable resonant filter
- specifically tailored for guitar

Electro-Harmonix Q-Tron Plus
The Electro-Harmonix Q-Tron+ is an envelope filter and is the same thing as the Q-Tron but without the extra effects loop and attack/response switch. Basically an envelope follower is a programmable sweepable filter that sounds like a Wah Wah pedal. The Electro-Harmonix version has a number of added options. It has a boost switch and filter mix mode that lends to a wider variety of effect sounds. It has a good frequency response and signal to noise ratio (SN Ratio). The Q-Tron+'s effect loop allows you to insert an effect(s) between the Q-Tron's Preamp stage and its Filter section. This allows you to keep the same drive settings. The attack/response switch allows you to select between slow, smooth and vowel like attack sounds (the first part of the Wah sound).

Electro-Harmonix Small Clone Chorus
The Electro-Harmonix Small Clone is an analog chorus effect for electric guitar. It's the same model as used by Kurt Cobain of Nirvana. It has a very distinctive tone and sound. It's very simple to use but has a very undeniable sound. The single chorus rate knob controls the speed of the chorus effect. It varies from slow warm washes to fast underwater bubble like sounds. It also has a depth switch that adds more chorus effect. It produces doubling, chiming and 12 string type of sounds as well as Leslie-type of sounds. It has a solid nickel case and requires a 9VDC battery or AC wall wart to operate.
Features
- Luxurious analog chorus effects
- Depth switch
- Single rate knob
- Solid nickel steel case
- Operates on a 9V battery or AC adapter

Electro-Harmonix Small Stone
The Electro-Harmonix Small Stone is a phase shifter guitar effect pedal. It's made to be played at the feet of a guitarist. The small on/off switch is pressed by the guitarist foot to turn it on or off. The effect has a warm sound that sounds like a car that slowly passes by again and again. This is a very popular effect that you would notice right away upon hearing it. The Small Stone phaser has been around for years. This is a re-issue that is just as authentic as the original. It has a rich lush sound that is very pleasing. It requires a 9VDC battery to operate. This classic phase shifter produces super warm and rich phasing tones. That's why it's become a classic around the world. It's made in the USA and includes a nine-volt battery.
Features
- Warm, rich phasing tones
- Made in the U.S.A.
- Includes nine-volt battery

Electro-Harmonix Tube Zipper
The Electo-Harmonix Tube Zipper is a set of filters that are fed into
two 12AX7EH tubes. The only real way of knowing this effect does is
to go to the EH Tube Zipper webpage and select Felipe Souza Barking
Groove MP3. I wish I could tell you more of what it does. Somehow the
guitar signal is sent into the Tube Zipper's moving filter. This adds
even harmonics to the sound. You can control the number of parameters
create a wide variety of sounds. After listening to this thing I 'm
just amazed at its sound - but don't really know how to describe it.
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