Drybell The Engine Preamp

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Plexi-style preamp and Rangemaster-style boost!

The Engine aims to capture the crunch of a vintage Marshall and the spank of a Rangemaster treble booster.

Drybell designed The Engine with British, non-master-volume amps in mind.

It features two independent sections designed to work perfectly with a variety of gear, regardless of your playing style.

Packed with tones, the Engine will have you covering pretty much any old-school British sound you might be after!

And, it doesn’t matter whether you’re playing in your bedroom or a packed arena, you’ll have those Classic Rock tones ready to go at any volume!

1960s Marshall tones.

Side A is very carefully tuned to capture the sound, feel and dynamic response of a 1960’s British non-master-volume amp.

It’s open sounding and very touch sensitive: the amount of dirt on tap is easily controlled by your pick attack.

Besides familiar controls such as Level, Gain and Tone, Drybell added a special knob called Shape.

This unique control helps you adjust the overall character and level of the mid frequencies.

The Shape control is super helpful to fine tune your tone on any amp you might be using that night!

Classic Rangemaster tones.

Side B is Drybell's take on the classic 1960s Rangemaster Treble Booster.

Rangemasters are really more about pushing the biting upper mids and tightening the low end than adding pure treble.

With the range control at full and some cut to the low EQ, you get a clonking slap around the chops that’s pure first-generation Brit rock!

Play around with the tone controls, however, and a wide palette of boost textures reveals itself: from a full-frequency boost to various shades of Vox-like chime.

Flip the order of the circuits easily!

Although The Engine has these two completely separate sections, it really shines when they are working together!

Stacking these two sides can yield some incredibly rich sounds. And, with the Order switch, you can choose the stacking order of the A & B sections.

If you choose side B to go into side A, the result will be much more distortion and complex overtones.

If you choose side A to go into side B, the final result will be much more volume, sparkle and detail in your tone.

Now that’s something you certainly can’t do with an original Dallas Rangemaster and a Marshall Super Lead!

Drybell The Engine Preamp features:

• Designed with non-master-volume Marshall amps in mind.

• Features 2 independent sections: a Marshall-style preamp and a Rangemaster-style booster.

• Cleans up nicely with your guitar’s volume knob.

• Order switch lets you choose the stacking order of the circuits.

• High headroom ultra-low noise buffer.

• Made with high quality components.

• Power: 9 - 18V DC.

• Current Draw: 100mA.



Type Preamp
Condition New
Power 9 - 18V DC
Current Draw 100mA
Power supply included No
Manufacturer Warranty 1 year
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.