WORKING CONDITION: Excellent. All voltages drop by their advertised percentages, and this unit works as it should.

PHYSICAL CONDITION: Very Good. There are a few markings from use (see photos), but the chassis, handle, knobs, and jacks are in very good condition. 

INVENTORY #59155

BRAND: AmpRx

MODEL: BrownBox 50/60Hz

FUNCTION: Variable AC Voltage Attenuator

PRODUCT DESCRIPTION: This listing is for an AmpRx BrownBox 50/60Hz Variac Variable AC Voltage Attenuator. The AmpRX BrownBox is a specialized AC voltage attenuator designed to lower modern wall voltage (often 120V+) to the era-correct levels (typically 110V–116V) that vintage tube amplifiers were originally designed for. Operating at these lower levels helps optimize the amp's harmonic content and touch sensitivity while extending the life of tubes and capacitors.

SPECS:

• Input Voltage: 120VAC, 50/60 Hz via standard IEC AC cable.
• Output Outlets: Two AC grounded outlets.
• Power Handling: 5 Amps at 120VAC, supporting up to 540 Watts.
• Voltage Reduction: Selectable reduction modes (typically 3%, 4%, 6%, and 10%).
• Display: Backlit LCD for real-time monitoring of both voltage and amperage.
• Safety Features: 5-amp fuse with in-rush current protection and an EMF-neutral powder-coated housing.
• Dimensions: 7.5" L x 4.5" W x 4.875" H.
• Weight: 3.6 lbs

ACCESSORIES INCLUDED: Includes an IEC Power Cable

UNPACKAGED WEIGHT: 4 lbs.

UNPACKAGED DIMENSIONS: 8" x 4" x 5"