The Original Little Green Wonder Returns
The Mad Professor Little Green Wonder Handwired marks the return of the very first Mad Professor pedal, faithfully recreated twenty years after its original release and now built as part of the company's premium Handwired Series.
Designed as a high-headroom overdrive and booster, the Little Green Wonder delivers a focused, articulate drive that enhances rather than masks the character of your guitar and amplifier. Whether used as a standalone overdrive, a clean boost, or as part of a stacked gain setup, it offers exceptional versatility and dynamic response.
A Unique Approach to Overdrive
At the heart of the Little Green Wonder is a distinctive EQ structure centered around its unique Body control. Rather than functioning as a traditional tone knob, the Body control reshapes the frequency emphasis of the overdrive itself, allowing the pedal to adapt easily to both single-coil and humbucker-equipped guitars.
Turn the control counter-clockwise for a fuller response with enhanced bass and low mids, or increase it for a more focused, mid-forward character that helps cut through a mix. Combined with the pedal's wide gain range and generous headroom, the result is an overdrive that feels equally at home as a transparent tone enhancer or a rich, sustaining drive.
Handwired Quality, Built in Finland
The Handwired version retains the original circuit while incorporating the premium construction standards found throughout the current Mad Professor Handwired lineup. High-quality through-hole components, Alpha pots and switches, and Switchcraft jacks are housed in a rugged enclosure with top-mounted jacks for pedalboard-friendly operation.
Handmade in Finland and backed by Mad Professor's limited lifetime warranty, the Little Green Wonder combines classic tone with modern reliability and craftsmanship.
Mad Professor Little Green Wonder Handwired Features
• Premium handwired overdrive / boost pedal
• Original Little Green Wonder circuit
• High-headroom design with wide gain range
• Unique Body control for tailoring the overdrive character
• Works exceptionally well with both single-coil and humbucker pickups
• Excellent as a standalone overdrive, booster, or stacking pedal
• High-quality through-hole components
• Alpha pots and switches
• Switchcraft jacks
• Top-mounted jacks
• True bypass
• Power: 9-18V DC
• Current Draw: 4mA
Specs
| Type | Overdrive |
| Condition | New |
| Power | 9V DC |
| Current Draw | 100mA |
| Power supply included | No |
| Manufacturer Warranty | Lifetime |
| 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.