Keeley Electronics

Keeley Super AT Mod Overdrive

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Engineering the perfect overdrive… again!

There is something special about a Keeley Modded Blues Driver.

There’s something even more remarkable about Andy Timmons’ tone!

Since his exposure to this Keeley modded stompbox, it has been virtually glued to Andy’s board.

So, what happens when Andy and Robert use the familiarity of the Super Phat

Mod platform to dethrone a classic? Enter the Super AT Mod!

The new Timmons Mod accentuates both the tone control and the gain creation: making it truly sound and respond like a tube amp!

It’s an amp-in-a-box, only better because it’s Keeley developed with the guidance of Andy Timmons!


Asymmetrical Tube Clipping.

The most dramatic change to the distortion characteristics of the pedal is with the clipping diodes.

For this AT edition, Keeley create asymmetrical clipping by using a combination of regular diodes and LEDs.

LEDs clip or distort the signal at a higher voltage than do regular diodes.

Asymmetry enhances the tone by giving your ears something a bit more interesting than a basic square wave to listen to.

Tube biasing, output transformers, and the balance in a push-pull output section, can cause natural asymmetrical clipping.

The Super AT Mod Overdrive pedal exhibits the characteristics of a pushed tube amp.

Andy’s chord work and harmonies are cleaner and tighter now, without reducing any gain!


Keeley Electronics Super AT Mod Overdrive features:

• Based on Andy Timmons’ personal Keely-modified driving blues dirt box.

• Provides an exceptionally dynamic amp-like overdrive, equally fit for rhythm and lead applications.

• AT/Phat switch allows you to tailor the pedal’s response to a variety of different pickup styles.

• Classic Level/Drive/Tone control format.

• Power: 9V DC.

• Current draw: 12mA.



Type Overdrive
Condition New
Power 9V DC
Current Draw 100mA
Power supply included No
Manufacturer Warranty 2 years
Shipping & Return


  • Free shipping within Canada.
  • Free shipping to the USA.
  • Free shipping on international orders over 399$.

    Visit the Shipping page for more infos.

Fast Delivery

  • Canada : 1 - 2 business days
  • USA : 1 - 2 business days
  • Rest of the world: 3 - 5 business days.

Hassle-Free Returns

You have 45 days to test your new gear.
If you choose to return it, we’ll send a full refund.
It’s that simple: no bogus restocking fees or charges.

Visit the Returns page for more infos.


Frequently Asked Questions

  • Q : Is this item in stock? +

    A : On product pages, you can find an availability status.

    Products with the mention 'In stock' are in stock and ready to ship.

    Products with the mention 'Out of stock' are not currently in stock.

    For out of stock products, you can ask to get notified as soon as the item is back in stock.

    Enter your email in the ‘Email me when available’ field and you’ll be kept in the loop.

  • Q : Where are you located? +

    A : We’re in Blainville, Quebec, Canada.

    Contact us to schedule an appointment if you’d like to meet.

  • Q : When will my order ship? +

    A : Orders placed before 3pm EST ship on the same business day.

    An update with tracking details will be sent shortly after purchase.

    (Please note: business days don’t include weekends and holidays)

  • Q : How much does shipping cost? +

    A : Shipping to Canada and the USA is free on most orders.

    Shipping to the rest of the world is free on orders over 399$US.

    Visit the Shipping page for more infos.

  • Q : What shipping method do you use? +

    A : We ship with UPS.

  • Q : What payment methods do you accept? +

    A : We accept credit cards and Paypal.

  • Q : Do you charge sales taxes to Canadians? +

    A : Canadian residents are asked to pay sales taxes:

    Alberta: 5%.

    British Columbia: 5%.

    Manitoba: 5%.

    New Brunswick: 15%.

    Newfoundland and Labrador: 15%.

    Northwest Territories: 5%.

    Nova Scotia: 15%.

    Nunavut: 5%.

    Ontario: 13%.

    Prince Edward Island: 15%.

    Quebec: 14.975%.

    Saskatchewan: 5%.

    Yukon: 5%.

  • Q : Are there import charges on orders shipped to Canada? +

    A : No. Canadian customers will not be charged import fees.

  • Q : Are there import charges on orders shipped to the USA? +

    A : No. USA residents will not be charged import fees.

  • Q : Are there import charges on International shipments? +

    A: Shipping prices do not include VAT or other import taxes.

    Customers outside of Canada and the USA are responsible for duties and taxes.

    Orders that come back to the shop as refused by the customer will be refunded minus shipping.

    Please track your shipment to be aware of customs processing and delivery attempts.

  • Q : Can you declare a lower value on customs documents? +

    A : We understand that import fees are an annoying part of international purchases.

    However, we cannot offer to declare a lower value on customs forms.

    Customers outside of Canada and the USA are responsible for any fees that may be charged by their government.