AmpRX BrownBox II Tube Amplifier Input Voltage Attenuator

Description

Optimal Voltage for Superior Tube-amp Tone
Sweetwater is an Authorized AmpRX Dealer
Genuine New Item
Sweetwater's 2-year warranty
AmpRX BrownBox II Tube Amplifier Input Voltage Attenuator
5A Input AC Voltage Attenuator for Full-sized Tube Amplifiers, with LCD Voltmeter, 4 Selectable Input Voltages, 4 Selectable Output Voltages, Bypass, and Braced All-metal Chassis
Optimal Voltage for Superior Tube-amp Tone
Whether you're a professional recording engineer or a consummate tone purist, if you want to get the best possible sound from your tube amp, then you need an AmpRX BrownBox II voltage attenuator. All tube amps (especially vintage tube amps) are designed to run at an optimal voltage, and standard 120V/AC wall current is typically too high for vintage tube amps, as well as some modern designs. With its proprietary 5-amp transformer and flexible attenuation options, the AmpRX BrownBox II lets you bring that current down to an optimal level, resulting in significantly improved amp performance.
Safe, effective, and easy to use
Another benefit of running your amp at optimal voltage is that your tubes will usually last much longer — something many of us here at Sweetwater who've paid a pretty penny for new-old-stock tubes can appreciate. The BrownBox II is far safer and more effective than any standard variac, because it limits the input voltage and attenuates the output voltage. Figuring out your amp's optimal voltage is as easy as Googling the specs, and the BrownBox II's onboard output voltmeter lets you see exactly what you're pulling. The BrownBox II's four voltage-reduction modes let you get as close to optimal as possible, and there's a bypass setting so you can A/B the results.
AmpRX BrownBox II Input Voltage Attenuator Features:
The perfect way to optimize the input voltage for your full-sized tube amp
Dramatically improves your amp's performance by providing optimized voltage
Optimal input voltage also extends the life of your high-performance 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
5-amp, 120/122/124/126VAC input settings accommodate most wall currents
Equal or attenuated output ensures that you can't accidentally overload your amp
Choose from 4 attenuation modes (3%, 4%, 6%, and 10%) 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
RETURN INFORMATION
We want you to be completely happy with your purchase from Sweetwater. If you are not satisfied with your product, you may return it for a refund of the purchase price within 30 days. If your purchase was eligible for Free Shipping, the shipping cost will be deducted from your credit or refund. Returns must be in the complete and original packaging with all accessories and complete documentation (Owner's Manual, warranty card, quick start guides, etc.), show no signs of wear or use, and include a Return Authorization number or be subject to a restocking fee.
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