EHX Tone Tips - The Sound of Nirvana

Posted 11/19/2010

Nirvana was one of the most successful alternative rock bands in the 1990s. The band was formed by singer/gutarist Kurt Cobain in Aberdeen, Washington. Two of Kurt Cobain’s favorite effect pedals were the Electro-Harmonix Small Clone and Polychorus.

Kurt Cobain

Here is the actual Polychorus used on the album In Utero.
The Polychorus was featured on the tracks “Heart-Shaped Box” (solo), “Radio Friendly Unit Shifter,” and “Scentless Apprentice.”
Shown below is the actual Polychorus used by Cobain, and his handwritten notes on settings.

Stereo Polychorus

 Hand Notes

The EHX Polychorus has since been reissued with the controls in slightly different positions.
If you own a reissue Stereo Polychorus make sure to adjust the settings above.

The Stereo Polychorus is capable of producing not only subtle flanging and chorus effects but wild over-the-top sonic mayhem as heard in the Nirvana song “Radio Friendly Unit Shifter.”
The settings below are for that song using a reissue Stereo Polychorus.
To help capture the sound, place the chorus before distortion or overdrive.

Stereo Polychorus

Previous Tone Tips posts:

Stay tuned, more Tone Tips posts coming soon!

This pedal was conceived of and designed by EHX from globally sourced components. Every EHX pedal goes through a stringent testing process by musicians and technicians in NYC before packing.

EHX Products Mentioned Above
Stereo Polychorus - Analog Chorus/Flanger/Slapback Echo
Stereo Polychorus
Analog Chorus/Flanger/Slapback Echo
The EHX Community
Here are a few easy ways to stay informed on the latest news from Electro-Harmonix...
Forums (Discussion & Support)
Have a question, comment, suggestion? Come join the EHX Forums! You'll meet EHX staff and knowledgeable users from around the world.
 
EHX Merch Shop
Show your colors with an EHX t-shirt -- you can even custom design your own shirt from scratch!
EHX Products
Our new EH Strings allow you to capture every nuance of your playing style with lightning fast playability. Made of a pure nickel wrap with a specially-selected stainless steel, these sweet-sounding round wounds are truly like no other strings you've played. Not only do they last longer and stay in tune longer, but we think they're the best sounding strings ever made. Available in 9s, 10s and 11s.
EHX Tubes/Valves
Did you know that Electro-Harmonix makes many of the world's greatest vacuum tubes? The next time you need to re-tube your guitar, bass, or hi-fi amp, be sure to insist on getting authentic Electro-Harmonix tubes.