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The Twin-City is an active ABY switcher that lets you connect to any two guitar amps and drive them simultaneously without noise, loss of gain or any degradation to your natural guitar tone.
The design begins with Radial's award winning class-A buffer for the most natural tone and Drag Control load correction that lets you reintroduce the natural load on the pickup as if connected directly to a tube amplifier. To eliminate hum and buzz from ground loops, the Twin-City is equipped with an isolation transformer on output B. This is augmented with a ground lift switch and 180⁰ polarity reverse switch that ensures both amplifiers play in phase while noise is reduced to an absolute minimum, even when using older vintage amps. As a buffer, the Twin-City lowers the impedance and susceptibility to noise, making it the ideal signal driver for large stages when using long cable runs.
