Radial Tonebone Twin-City Active ABY Amp Switcher

Switch between two guitar amplifiers or run them simultaneously with the Twin-City™ active amp selector, designed to maintain your natural guitar tone without noise, gain loss, or signal degradation. This professional-grade switching solution connects any two guitar amps and provides complete control over your amplifier setup on stage.

Built around a class-A input buffer that drives both amp outputs, the Tonebone Twin-City reduces noise susceptibility whilst enabling completely silent switching during performance. The unit features an isolation transformer on output-B, complemented by a ground lift switch and 180° polarity reverse switch to eliminate hum and buzz from ground loops, ensuring both amplifiers remain perfectly in phase.

The Twin-City includes Drag Control load correction at the input stage, which recreates the natural load on your pickups as though you were plugged directly into a tube amplifier. This thoughtful design preserves the authentic character of your instrument, allowing your guitar’s natural tone to come through uncompromised.