Legendary Transparency. Elevated.
The Simble Overdrive MK2 is a refined evolution of one of Mad Professor’s most iconic circuits—developed in collaboration with original designer Lassi Ukkonen. Celebrated for its dynamic response and organic feel, the Simble captures the nuance of your playing while preserving the soul of your instrument.
From crystal-clear boost to edge-of-breakup textures and rich, vocal-like overdrive, the MK2 delivers a wide palette of tones that feel alive under your fingers. The updated circuit offers increased headroom, improved clarity, and a more open voicing—making it even more versatile and expressive, whether you’re pairing it with a Strat, a Les Paul, or anything in between.
Whether you're chasing Dumble-style tones or simply want a pedal that feels like an extension of your amp, the Simble MK2 delivers—with elegance, depth, and just the right amount of attitude.
Mad Professor Simble Overdrive MK2 Features
• Transparent overdrive with wide dynamic range
• Works beautifully as a clean boost, edge-of-breakup crunch, or rich overdrive
• Updated design offers more headroom and tonal openness
• Contour control now responds more effectively across a range of instruments
• Designed in Finland by Mad Professor & Lassi Ukkonen
• True bypass switching
• Power: 9-12V DC
• Current draw: 10 mA
Specs
| Type | Overdrive |
| Condition | New |
| Power | 9-12V DC |
| Current Draw | 10mA |
| Power supply included | No |
| Manufacturer Warranty | 2 years |
| Country of Origin | Finland |
FREE SHIPPING
- Free shipping within Canada.
- Free shipping to the USA.
- Free shipping on international orders over 520$.
Visit the Shipping page for more.
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.
Frequently Asked Questions
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How can I tell if an item is in stock? +
Each product page shows an availability status.
• In stock items are ready to ship.
• Out of stock items are currently unavailable.
You can enter your email to be notified when an item is back in stock.
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Where are you located? +
We’re based in Blainville, Quebec, Canada.
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When will my order ship? +
Orders placed before 12 PM EST ship the same business day.
Tracking details are sent shortly after purchase.
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How much does shipping cost? +
Most orders ship free to Canada and the US.
International orders ship free on purchases over $520 CAD.
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Which shipping methods do you use? +
Orders ship via UPS Expedited by default.
For faster delivery, you can select UPS Express Saver at checkout.
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How long does shipping take? +
Typical delivery times are:
• Canada: 2–3 business days with UPS Expedited, 1 business day with UPS Express Saver
• USA: 2–3 business days with UPS Expedited, 1 business day with UPS Express Saver
• International: 3–5 business days with UPS Expedited, 2–3 business days with UPS Express Saver
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Which payment methods do you accept? +
We accept all major credit cards and PayPal.
Financing options are available through Klarna and RBC PayPlan.
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Do Canadian customers pay sales tax? +
Yes. Sales tax is applied based on your province of residence:
• Alberta: 5%
• British Columbia: 5%
• Manitoba: 5%
• New Brunswick: 15%
• Newfoundland and Labrador: 15%
• Northwest Territories: 5%
• Nova Scotia: 14%
• Nunavut: 5%
• Ontario: 13%
• Prince Edward Island: 15%
• Quebec: 14.975%
• Saskatchewan: 5%
• Yukon: 5%
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Do USA customers pay import fees? +
Yes. Starting August 29, 2025, all US-bound shipments will be subject to duties, taxes, and brokerage fees.
These charges are determined by US Customs and collected by UPS at delivery.
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Do international customers pay import fees? +
Yes. International shipments may be subject to duties and taxes.
These charges are set by the destination country’s customs authority and collected by UPS at delivery.