brown box pedal AmpRx Brownie Voltage Controller for Tube Amplifiers
SKU: 7023253715
brown box pedal

brown box pedal AmpRx Brownie Voltage Controller for Tube Amplifiers

Sale price$26.75 Regular price$29.72
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

brown box pedal AmpRx Brownie Voltage Controller for Tube AmplifiersLEARN ABOUT THE BROWNIE Today, we should be receiving 120V AC from the wall, but depending on where you are and what time of day it is, you can receive anywhere from 120V to 129V. Thats not good for your amplifier, or your ears. The Brownie is a voltage optimizing power supply (aka a voltage controller) designed specifically for modern tube amplifiers, offering the ultimate solution for achieving consistent tone and protecting valuable equipment the

LEARN ABOUT THE BROWNIE 

Today, we should be receiving 120V AC from the wall, but depending on where you are and what time of day it is, you can receive anywhere from 120V to 129V. That’s not good for your amplifier, or your ears. The Brownie is a voltage optimizing power supply (aka a voltage controller) designed specifically for modern tube amplifiers, offering the ultimate solution for achieving consistent tone and protecting valuable equipment - the first of its kind.

The Brownie is the first product in the AmpRx line to increase and decrease voltage. Plug the Brownie into the wall, adjust the voltage and then plug your gear into the Brownie.

WHAT MAKES THE BROWNIE SPECIAL? 

Modern Versatility: The first product in the AmpRx line to both decrease and increase voltage, compatible with all amplifier types from classic tube amps to modern designs

Unlock the Perfect Tone: Achieve consistency in tone and protect gear in any environment by dialing in the voltage you need every time you power your amp. Love your tone at 117V? You got it

Serious Protection: Mitigate disaster. Prevent unnecessary, expensive, and frustrating repairs

Industry Recognition: AmpRx is trusted by amp techs around the world, top touring artists and their techs, and has been spotted on stages with artists like the Red Hot Chili Peppers, Paramore, Bonnie Raitt, Derek Trucks, Iron Maiden, Lynyrd Skynyrd and more

Designed for All Musicians: Priced at $299, the Brownie is an affordable way for all musicians to attain professional-grade voltage control. 

Reliable and Durable: Hand-wired by humans in the USA, built to last

TECHNICAL SPECIFICATIONS 

Input: 120V/50-60Hz, standard IEC AC cable 
Output: One (1) AC grounded outlet
Voltage Adjustment Range: 

  • Decreasing Increments: -1V (-7V Max Reduction)  
  • Increasing Increments: +3V, +5V

Fuses: 2A and 4A options included 
Max Connected Load: 4A/480W (when paired with 4A Fuse)
Weight: 2.8 lbs 
Dimensions: Length: 5(3/4)" x Width: 4" x Height: 4(1/8)"
Construction: Rugged metal enclosure; Powder coated in the USA 

A note about B-Stocks: One might call it “scratch-n-dent”, another might call it “relic'ed” (if that’s you, we won’t even charge you extra!). In any case, these units are perfectly functioning on the inside, but have minor imperfections on the outside. Some examples include small paint chips and color inconsistencies.

A note about fuses: If you have a larger amp, consider switching the 2a fuse to a 4a fuse

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7023253715

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Dawn H
West Palm Beach, US
★★★★★ 5
Cool and comfy!
Color: 01-grey, Size: 20" X 26" (Pack of 2)
Very comfy and cooling. Great for hot sleepers!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
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Los Angeles, US
★★★★★ 5
keeps pillow secured and cool
Color: 05-purple, Size: 20" X 26" (Pack of 4)
just what I was looking for. A cooling pillow case with a zipper! my regular pillow cases slipped off my pillows So annoying. Now my pillows are staying put zipped in. so soft and cool. no more wrestling with the pillow case while trying to flip my pillow over trying to find a cool spot.
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Reviewed in the United States on May 7, 2026
C
Verified Purchase
Chris
Draper, US
★★★★★ 4
Color is off, feels decent
Color: 07-beige, Size: 20" X 26" (Pack of 2)
Feels nice and very cooling to the touch. Although you can tell it definitely isn't cotton. I ordered the color beige but it is much more of a cream color.
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Reviewed in the United States on February 23, 2026
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Amazon Customer
Lexington, US
★★★★★ 5
Good quality and value!
Color: 01-grey, Size: 20" X 26" (Pack of 2)
Washed nicely and cooled pretty well! Love thaf they stay on the pillow for my ASD son. Just what I was looking for! Would recommend!
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Reviewed in the United States on May 18, 2026
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DAVID
Alexandria, US
★★★★★ 5
Great case
Color: 03-dark Grey, Size: 20" X 26" (Pack of 2)
Love these pillow cases! FYI: 20" X 26" are PERFECT for supposed "queen size" feather pillows. 20" x 30" ones are too big and allow the feather pillow to flatten out too much. There is a bit of stretch to the cases. The "cool side" of the pillow case IS NOTICEABLY COOLER than the other side. Good zipper.
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Reviewed in the United States on March 31, 2026

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