Optimal voltage for a superior tone!
If you want to get the most out of your tube amp, you need a BrownBox!
Tube amps are designed to run at an optimal voltage, and standard 120V/AC wall current is typically too high for them.
The BrownBox lets you bring the current down to an optimal level, resulting in significantly improved amp performance.
Another benefit of running your amp at the optimal voltage is that your tubes will usually last much longer.
Whatever the venue, you’re sure to supply your amp with the optimal input voltage for your personal sound!
AmpRX BrownBox Voltage Attenuator features:
• The perfect way to optimize the input voltage for your tube amp.
• Dramatically improves your amp's performance!
• Optimal input voltage extends the life of your power tubes.
• LCD voltmeter makes it easy to dial in the optimal setting for your amp.
• Selectable input current setting ensures safe and accurate operation.
• Choose from 4 attenuation modes to fine-tune your voltage.
• Bypass mode lets you easily A/B the results of your optimized amp voltage.
• Braced metal chassis and protective bar withstand the most brutal touring conditions.
Specs
| Type | Attenuator |
| Condition | New |
| Power Handling | Up to 540W |
| Manufacturer Warranty | Lifetime |
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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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.
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Q : Where are you located? +
A : We’re in Blainville, Quebec, Canada.
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Q : When will my order ship? +
A : Orders placed before 2PM 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)
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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 $520 CAD.
Visit the Shipping page for more infos.
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Q : What shipping method do you use? +
A : Orders ship via UPS Expedited by default.
For faster delivery, UPS Express Saver can be selected at checkout.
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Q : What payment methods do you accept? +
A : We accept major credit cards and PayPal.
Financing options are also available through Klarna or RBC PayPlan.
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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%.
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Q : Are there import charges on international shipments? +
A : Our prices do not include duties or taxes.
Customers outside of Canada are responsible for duties and taxes.
To estimate potential import fees, please consult a duty cost calculator.