Sumo Electra Model 600
Stereo Preamplifier
MM/MC Phono Stage, Rack Mountable


The Sumo Electra is a high-fidelity vintage preamplifier designed by the Sumo Electric Company Limited of West Hollywood, California. Known for its robust build and audiophile-grade performance, the Electra features a dedicated phono stage compatible with both Moving Magnet (MM) and Moving Coil (MC) cartridges. Its slim, rack-mountable profile and minimalist black aesthetics make it a centerpiece for vintage high-end audio systems.


• Professional rack-mount faceplate design with integrated handles and gold-toned lettering
• Comprehensive input selection including dedicated MM and MC phono, Tuner, and Aux stages
• Dual pre-amplifier outputs (Pre Out 1 & 2) for flexible system integration and bi-amping
• Precision controls for Bass, Treble, Balance, and Volume with low filter and mono switching


Condition: Faceplate is in good condition with all lettering crisp and legible. All original knobs and push-buttons are present and intact. The top of the metal casing shows moderate surface wear, including dust, smudging, and light scratching consistent with age. Rear panel connections are clean with no visible corrosion. The original power cord is attached and in good physical condition. This unit has not been tested for audio output or power-on status and is sold as-is based on cosmetic condition.


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