




- Details
- Features
- Tech Specs
- Reviews
WHAT ARE YOU FEEDING YOUR AMP?
The Brownie by AmpRx is the latest innovation in voltage optimization, providing musicians with unparalleled control, flexibility, and protection for their gear. Hand-wired in Nashville, Tennessee, the Brownie is a voltage optimizing power supply designed specifically for modern tube amplifiers, offering the ultimate solution for achieving consistent tone and protecting valuable equipment – the first of its kind.
AmpRx is the trusted name in voltage control, known for its flagship product, the BrownBox. Designed to protect and enhance amplifier performance, AmpRx voltage optimizing products are used by some of the biggest names in the music industry. With the introduction of the Brownie, AmpRx continues to innovate and expand its reach to musicians everywhere. Let the Brownie transform the way you experience your tone and gear – the ultimate advantage is in knowing exactly what you’re feeding your amp.
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 your 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 techs around the world, top touring artists and their techs, and has been spotted on rigs used by The Red Hot Chili Peppers, Paramore, Bonnie Raitt, Derek Trucks, Iron Maiden, Lynyrd Skynyrd and more.
- Designed for All Musicians: The Brownie is an affordable option for all musicians to attain professional-grade voltage control.
- Reliable and Durable: Hand-wired by humans in the USA, built to last.
Product Name | AmpRX Brownie Tube Amplifier Input Voltage Controller |
---|---|
Brand | AmpRX |
MPN | BROWNIE |
Shipping Option | Free Shipping to the Continental U.S. |
What's in the Box?
- AmpRX Brownie Tube Amplifier Input Voltage Controller
- Power Adapter
- Designed for Modern Amplifiers: The first product in the AmpRx line to both decrease and increase voltage, designed specifically for modern amplifiers.
- Precise Control: Adjust voltage in ultra-precise 1V increments when reducing voltage (up to -7V total) and up to +5V in +3V and +5V increments when increasing. In almost any situation, you can dial in 117-120V.
- Flexible Fuse Options: 2A for smaller amps, 4A for larger amps. Your choice.
- Compact and Portable: Smaller and lighter than the original BrownBox, making it easy to transport for gigs, studios, and home use. It can even fit on a pedalboard or in a backpack!
- Price: The Brownie is an affordable option for musicians seeking professional-grade voltage control.
- Hand Built for Reliability: Hand-wired by humans for durability and performance.
Input | 120V / 50–60Hz, standard IEC AC cable |
Output | One (1) AC grounded outlet |
Voltage Adjustment Range | Decreasing: -1V increments (up to -7V total)
Increasing: +3V, +5V |
Fuses | 2A and 4A options included |
Max Connected Load | 4A / 480W (when paired with 4A Fuse) |
Weight | 2.8 lbs (1.27 kg) |
Dimensions | 5 3/4" L × 4" W × 4 1/2" H (146 mm × 102 mm × 114 mm) |
Construction | Rugged metal enclosure; Powder coated in the USA |
AmpRX Brownie Tube Amplifier Input Voltage Controller
WHAT ARE YOU FEEDING YOUR AMP?
The Brownie by AmpRx is the latest innovation in voltage optimization, providing musicians with unparalleled control, flexibility, and protection for their gear. Hand-wired in Nashville, Tennessee, the Brownie is a voltage optimizing power supply designed specifically for modern tube amplifiers, offering the ultimate solution for achieving consistent tone and protecting valuable equipment – the first of its kind.
AmpRx is the trusted name in voltage control, known for its flagship product, the BrownBox. Designed to protect and enhance amplifier performance, AmpRx voltage optimizing products are used by some of the biggest names in the music industry. With the introduction of the Brownie, AmpRx continues to innovate and expand its reach to musicians everywhere. Let the Brownie transform the way you experience your tone and gear – the ultimate advantage is in knowing exactly what you’re feeding your amp.
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 your 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 techs around the world, top touring artists and their techs, and has been spotted on rigs used by The Red Hot Chili Peppers, Paramore, Bonnie Raitt, Derek Trucks, Iron Maiden, Lynyrd Skynyrd and more.
- Designed for All Musicians: The Brownie is an affordable option for all musicians to attain professional-grade voltage control.
- Reliable and Durable: Hand-wired by humans in the USA, built to last.
Product Name | AmpRX Brownie Tube Amplifier Input Voltage Controller |
---|---|
Brand | AmpRX |
MPN | BROWNIE |
Shipping Option | Free Shipping to the Continental U.S. |
What's in the Box?
- AmpRX Brownie Tube Amplifier Input Voltage Controller
- Power Adapter
- Designed for Modern Amplifiers: The first product in the AmpRx line to both decrease and increase voltage, designed specifically for modern amplifiers.
- Precise Control: Adjust voltage in ultra-precise 1V increments when reducing voltage (up to -7V total) and up to +5V in +3V and +5V increments when increasing. In almost any situation, you can dial in 117-120V.
- Flexible Fuse Options: 2A for smaller amps, 4A for larger amps. Your choice.
- Compact and Portable: Smaller and lighter than the original BrownBox, making it easy to transport for gigs, studios, and home use. It can even fit on a pedalboard or in a backpack!
- Price: The Brownie is an affordable option for musicians seeking professional-grade voltage control.
- Hand Built for Reliability: Hand-wired by humans for durability and performance.
Input | 120V / 50–60Hz, standard IEC AC cable |
Output | One (1) AC grounded outlet |
Voltage Adjustment Range | Decreasing: -1V increments (up to -7V total)
Increasing: +3V, +5V |
Fuses | 2A and 4A options included |
Max Connected Load | 4A / 480W (when paired with 4A Fuse) |
Weight | 2.8 lbs (1.27 kg) |
Dimensions | 5 3/4" L × 4" W × 4 1/2" H (146 mm × 102 mm × 114 mm) |
Construction | Rugged metal enclosure; Powder coated in the USA |
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