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A reissue of the original Sovtek unit with a few updated touches, the Electro-Harmonix MIG-50 is a 50W tube amplifier head intended for use with electric guitar. It sports two channels—one for normal gain, the other for high gain and bright tones—and delivers the powerful tone of the original, heralded amplifier with improved build quality in the jacks, potentiometers, and switches.
Each channel is accessible through its own separate 1/4" input, and once plugged in, you'll find the controls are relatively simple (volume, bass, middle, treble, and presence), allowing you to use your pedalboard for adding effects and textures. On the amp's back panel, you'll notice three 1/4" speaker outputs, each one suited specifically for four, eight, or 16 Ohm cabinets. Additionally, you'll find external bias controls on the rear of the amp, making calibrating tubes for the head much simpler. The MIG-50 is assembled by hand in the company's New York City factory.
Key Features at a Glance
50W amplifier head
2 channels, each with its own volume control
Channel 1 is normal, Channel 2 is bright/high gain
Treble, middle, bass and presence controls
2 Tung-Sol 5881 power tubes
3 Tung-Sol 12AX7 preamp tubes
100V, 117V, 230V, 50/60Hz switchable
External bias adjustment controls for tubes
3 separate speaker outputs for four, eight, or 16 Ohm cabinets