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AmpRx

BrownBox by AmpRx (A STOCK )

BrownBox by AmpRx (A STOCK )

31 total reviews

Regular price $379.00
Regular price Sale price $379.00
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The Original BrownBox

Input: 120VAC, 60 Hz; Standard IEC AC cable
Output: Two AC Grounded Outlets, Adjustable Voltage Reduction
Power Handling: 5 Amps at 120VAC, 60 Hz, up to 540 Watts

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. Depending on the amplifier, a BrownBox user might discover that modern gear runs optimally at 116-118V, or as low as 108-110V for vintage gear. It’s impossible for an amplifier designed for 110V or 120V to sound or operate anywhere near the way it should at 129V.

The BrownBox features flexible voltage reductions options that let you bring your power input down to an optimal level, resulting in significantly improved amplifier performance.

THE DETAILS

  • 120 Volt AC, 60 Hz, 5 Amp Voltage Attenuator supplies up to 540 Watts, designed for small or mid to larger sized amplifiers (i.e. Fender Deluxe/Bassman/Twin, Marshall 50w/100w, Vox AC30). Can also be used for parallel or dual amp rigs.
  • Easy to read back-lit L.C.D. display enables real-time voltage and amperage monitoring - also useful for diagnostics
  • Two adjustment modes to help to fine-tune your voltage
  • Proprietary transformer design wound exclusively for use with tube amplifiers, an industry first
  • Equal or attenuated voltage output and a 5 amp fuse with in-rush current protection ensures that you will never accidentally overload your amplifier
  • Powder coated EMF neutral housing and tough road rugged construction
  • Silent, cool operation
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Customer Reviews

Based on 31 reviews
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A
Aaron Veneziano
Game changer

Love this thing. My amp sounds better and the customer service and ease of use is incredible.

J
Josh Bohm
Saves my amps' lives!

I live in a place with very high current from the wall and have a pile of vintage amps. With the Brown Box, I can guarantee I'll get the same power and tone while extending the already long lives of these amps. I can't leave for a gig without it!

A
Alexander Wyatt

Amazing product and great company!

R
Robert Pavich
If you love tone and have a tube amp....you need this...just buy it.

I was a bit skeptical, I've bought my share of snake-oil devices that didn't do anything noticeable....but I tried the BrownBox....Well, I plugged my amp into it...plugged it into the wall...and turned the voltage from my wall (123v) to 110 and WOW! It really brought my amp to life…I thought it was really great without the BB but after turning the voltage supply to 110….it’s noticeably better! It sounds and feels great.

J
Jonathan Cole
Excellent quality tone tool

Required imo for vintage amps with modern wall voltage where I live.