Keeley MT-2 Mod


Introduction to the World’s Finest Metal Zone Modification

Thanks for your purchase! I am sure you will be very pleased with the tone of your new KeeleyMT-2 Twilight Zone Mod pedal. The Boss MT-2 is Keeley Electronics’ heaviest, most powerful,hard hitting pedal. The many modifications make this beast a hi-fi monster. Every componentchanged or added is of the highest quality. Metal film resistors are used for a low noise floor:something absolutely required for a high gain pedal. You will notice your new Keeley moddedMT-2 has a lower noise level than the stock pedal! Metal film and poly capacitors are usedin the coupling sections to provide the true midrange and high frequency transparency yourguitar tone needs while increasing the bass response of the pedal. It goes without saying thatthe note definition has been improved. The final result is a pedal that provides more gain andvolume while losing no note definition. Here you have the perfect pedal for a Marshall Stackor Triple Rectified punch. The MT-2 pedal has been modified to have asymmetrical clipping,which gives you 2nd order harmonic distortion. On top of this lending a very musical sound,it becomes at very high saturation levels almost an octave type effect.

The Mode Switch

Your unit now has a MODE SWITCH. This is the highest quality mini-toggle switch available. There are three modes ofoperation.

  • SWITCH LEFT — This is the “stock” MT-2 sound. But you will easily notice that the pedal has more presence, a morepowerful and true sounding midrange and a tighter bass response.
  • SWITCH RIGHT — This is the Triple Diode Mode–our favorite. The Triple Diode Mode gives you the natural tubesound that makes that to-die-for molten guitar sound. It’s Sick, Fat and more has way more Muscle than the stockMT-2 mode.•
  • SWITCH CENTER — This is the Ultra Tube Mode. Beware! You will blow speakers with this mode! No, we’re serious!!You must be aware that in this mode, the MT-2 mod has a super powerful output. This mode should be used witha 4X12 cabinet that can handle the power and ultra low bass this pedal can deliver. There’s even more tubesimulation and 2nd order harmonics to give you a sound available in no other pedal.

All modifications are warranteed for you, the original owner, for two years. If you have any problems at all please emailme If you are really happy with this product, please let everyone know! One way is to submit a review If you are not happy with this product for any reason at all pleaselet me know within 48 hours and I will refund all of your money. Simple!

The entire Keeley team thanks you for your business. You’re keeping the good tones alive! If you like this product,there’s more where it came from! Have you checked out some of our other modifications? The Boss DS-1 is one ofthe best distortion tones out there; it can give you a Seattle-rock break-up or an all-out Vai-esque tonal assault. Otherpopular mods include our Ibanez TS-9 Mod Plus, the Vox Mello Wah, and the Ibanez AD-9, which gives you options tocontrol your delay time and mix with custom modified expression pedals. But we don’t stop there. Many guitarists havediscovered the Keeley Compressor, which stands above all others in terms of transparency, sound quality, and easeof use! Other custom pedals include the cleanest boost on the market, the Katana Boost, the smartest fuzz available,the Fuzz Head, and our popular take on the classic Rangemaster, the Java Boost! Visit to learnmore. And thanks again!

Keeley Electronics, 6400 Industrial Blvd. 2nd Floor, Edmond, OK 73034SHOP TELEPHONE NUMBER 1-405-341-2025 TOLL FREE 1-8668-go-rkfx (1-866-846-7539) Email:

Note: This User's Manual is adapted from the official manual created by Keeley Electronics in PDF format, without modification of the content. We just rewrite the PDF, into responsive mobile friendly pages.So, you can read this document anytime and anywhere.

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