Radial Twin-City

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(1 customer review)

With the Twin-City AB/Y Amp Switcher from Radial Engineering, you can connect to two guitar amps and run them simultaneously sans losing gain, noise, or degrading your original guitar tone. The design starts with Radial’s legendary class-A buffer for a very natural tone. To eradicate buzz and hum from ground loops, the Twin-City features an isolation transformer on output B. As a buffer, it reduces impedance and susceptibility to noise, making it an excellent signal driver for big stages when employing lengthy cable runs.

Brand: Radial Engineering


  • Class-A amp switcher with Drag Control
  • Isolated output eliminates hum and buzz
  • 180° polarity sets both amps in phase
  • Standard 9 volt power supply operation


Includes 1 Year Free Extended Warranty from EverythingMusic.

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.

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.

UPC: 632317247764

EAN: 632317247764

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Based on 1 review

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  1. Cali

    Top-notch amp switcher!