The explosive sound of rock!
The Crazy Tube Circuits Heatseeker is inspired by Angus Young, capturing the sonic elements that define his legendary tone.
Central to Angus’s signature sound—alongside walls of roaring Marshalls—was one of the first wireless guitar systems: the Schaffer Vega Diversity System.
Its unique combination of a preamp and Dynamic Expansion circuit shaped the sound of rock history!
The Heatseeker faithfully recreates this magic. The preamp boosts your signal, tightens the lows, and enhances the mids, while the Dynamic Expansion circuit improves dynamic response and adds rich harmonics for punchy, mix-cutting tones.
A versatile and dynamic rock machine!
The Heatseeker’s dual design lets you use each side independently or together for ultimate versatility.
The left side delivers Marshall amp tones, while the right side recreates the legendary Schaffer Vega preamp and tone enhancer.
A passive FX loop also allows you to insert pedals between the two sections or use them as standalone effects.
While designed with Angus Young’s tone in mind, the Heatseeker opens the door to countless legendary sounds—from KISS and Peter Frampton to Van Halen!
Three iconic amps in one pedal.
Crazy Tube Circuits captured the sound and feel of three legendary British amps synonymous with rock: the JTM45, the 1959 Super Lead, and the JMP 2203.
A smart switching circuit selects the appropriate gain stages for each amp mode, combining them with a Marshall-style EQ and power amp simulation for thundering tones.
A Wall of Sound toggle switch also expands your soundstage for epic tones!
Crazy Tube Circuits Heatseeker Overdrive features:
• All-analog dual preamp inspired by Angus Young's classic gear.
• Left side: Three Marshall amp tones (JTM45, 1959 Super Lead, JMP 2203).
• Right side: Recreation of the Schaffer Vega Diversity System preamp and tone enhancer.
• Left side controls: Master, Presence, Volume, Bass, Middle, Treble, Wall of Sound switch.
• Right side controls: Enhance, Level.
• Passive FX Loop lets you connect pedals between the two sections or use them separately.
• Power: 9V DC.
• Current Draw: 115mA.
• Dimensions: 4.69" x 3.82" x 2.09".
Specs
Type | Overdrive |
Condition | New |
Power | 9V DC |
Current Draw | 100mA |
Power supply included | No |
Manufacturer Warranty | 5 years |
Country of Origin | Greece |

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
-
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.
-
Where are you located? +
We’re based in Blainville, Quebec, Canada.
-
When will my order ship? +
Orders placed before 12 PM EST ship the same business day.
Tracking details are sent shortly after purchase.
-
How much does shipping cost? +
Most orders ship free to Canada and the US.
International orders ship free on purchases over $520 CAD.
-
Which shipping methods do you use? +
Orders ship via UPS Expedited by default.
For faster delivery, you can select UPS Express Saver at checkout.
-
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
-
Which payment methods do you accept? +
We accept all major credit cards and PayPal.
Financing options are available through Klarna and RBC PayPlan.
-
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%
-
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.
-
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.