Radial Tonebone Bones Twin City ABY Switcher
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Class-A amps switcher with Drag Control
Isolated output eliminates hum and buzz
180° polarity sets both amps in phase
Standard 9 volt power supply operation
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 180‚Å∞ 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.
Like all Radial products, the Twin-City is constructed from heavy 14 gauge steel to protect the internal electronics from abuse when kicked around on a busy stage. For maximum dependability, the Twin-City employs our latest EIS – Electronic Impulse Switching – for unmatched performance without the challenges posed by mechanical switches. Bright, easy to see LEDs provide instant switching status so you know exactly where you are at all times. To better adapt to pedalboards, connections are top mounted for maximum density and powering is done using a standard 9V supply. This makes it easy to combine the Twin-City with other pedals and power them using a power brick .
The Twin-City is a powerful ABY switcher that delivers all of the natural tone, punch and clarity of a true-bypass device without the popping noise of mechanical switches or the induced hum and buzz caused by ground loops