Here’s the quick rundown: The BrownBox is an adjustable AC power supply for your amp or tube gear that helps you run your equipment at the optimal voltage. Plug the BrownBox into the wall, adjust the voltage and then plug your gear into the BrownBox.

When a tube amplifier is supplied with the proper line voltage, it will sound and respond as originally intended, revealing the circuit’s true harmonic content, and preventing unnecessary, expensive, and frustrating repairs.

BrownBox users testify time and again as to how their amp’s tone, touch and feel have finally come together, providing them with improved harmonics and dynamic amp performance- allowing them to capture the elusive tone they’ve always wanted, every time, everywhere.

220-240VAC input voltage attenuator for getting your dream tone out of your favourite valve amplifier!

THE DETAILS

• 220-240 Volt AC, 50 Hz, 2.5 Amp Voltage Attenuator supplies up to 440 Watts, designed for mid to larger sized amplifiers. 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
• Fine-tune your voltage with both Coarse and Fine attenuation
• Proprietary transformer design wound exclusively for use with tube amplifiers, an industry first
• Equal or attenuated voltage output and a 2.5 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