Experience the ultimate Marshall tone!
The Dirty Little Secret Deluxe takes Marshall Plexi emulation to the next level.
It goes beyond replicating the preamp circuit and encapsulates everything inside the amp chassis, delivering an unparalleled authentic Marshall experience!
The original Dirty Little Secret circuit has received significant upgrades. It now boasts a phase inverter, power amp sim, output transformer, and exciting new features.
An external toggle switch lets you effortlessly switch between Super Lead and Super Bass modes.
Dial in your preferred Marshall flavor with precision, courtesy of the new Presence knob.
Also added is a piece of the Dirty Little Secret, a preamp tube simulator, as a built-in boost that can be used independently of the main circuit. You can run the boost and DLS in any order you like; put the boost before the DLS for a high-powered saturated tone or after to pummel the front end of your amp!
Fine-tune your sound with the new Tightness knob. Whether you seek extra clarity or crave intense thrash metal tones, this control gives you the power to sculpt your sonic landscape.
The Line Out jack provides a dedicated +10dB output, perfect for seamless integration with mixers or DAWs. Use it in conjunction with your regular amp output for a professional studio sound.
Between the Boost, order selector and the external Super Lead/Super Bass modes, the Dirty Little Secret Deluxe is engineered to be a total performance tool that does the line justice!
Catalinbread Dirty Little Secret Deluxe Overdrive features:
• The ultimate Marshall-in-a-Box!
• Select between Super Lead and Super Bass modes.
• Presence knob lets you easily dial in your preferred Marshall flavor.
• Tightness knob acts as a subtle high-pass filter to attenuate some of the low end.
• Line Out jack gives you a dedicated +10dB output.
• Built-in boost circuit that can be used independently of the main circuit.
• True Bypass.
• Power: 9V DC.
• Current Draw: 7mA.
• Dimensions: 2.4" x 4.68" x 3.66".
Specs
| Type | Overdrive |
| Condition | New |
| Power | 9V DC |
| Current Draw | 100mA |
| Power supply included | No |
| Manufacturer Warranty | 3 years |
| Country of Origin | United States |
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.