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Radial Engineering Twin-City Active ABY Amp Switcher
Switching
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Active ABY Amp Switcher
The Twin-City™ is an active amp selector that lets you connect any two guitar amps and switch between them or drive them both simultaneously without noise, loss of gain, or any degradation to your natural guitar tone.
Twin-City Features
- Active ABY amp switcher & Class-A buffer
- Isolated output eliminates hum and buzz
- 180° polarity reverse to phase-match amps
- Drag Control load correction for natural tone
Active circuitry for noise-free switching
The Radial Twin-City uses a class-A input buffer to drive the amp outputs, which reduces susceptibility to noise and allows for completely silent switching on stage. To eliminate hum and buzz from ground loops, the Twin-City is equipped with an isolation transformer on output-B, along with a ground lift switch and 180⁰ polarity reverse switch that ensures both amplifiers play back in phase with each other. At the input, Drag Control load correction allows you to recreate the natural load on the pickups as if you were connected directly to a tube amplifier, allowing the natural tone of your instrument to shine through.
BOTH
Footswitch activates both amps. An LED status indicator illuminates when dual-amp mode is active.
180°
Polarity reverse switch inverts the signal phase of OUT-B to ensure amps are in-phase and their speakers are moving in the same direction.
Lift
Disconnects ground at Out-B to further reduce
noise.
A/B Status LED
Two LED status indicators display the active amp while in single output mode.
Toggle
Footswitch selects between amp-A or amp-B while operating in single-amp mode.
Drag
Reintroduces the natural loading that occurs between your amplifier and the guitars pickups. Start with DRAG set to 12 o’clock. Use your guitar pick like a screwdriver to move the control until it sounds right to you.
Using the Twin-City with Two Guitar Amps
Combining amps can often lead to horrendous buzz and hum. The Twin-City eliminates the problem with transformer isolation and a polarity reverse switch that sets both amps in phase.
Using the Twin-City as a Channel Switcher
Switching channels on vintage amps is now possible using the Twin-City. Connect the two outputs from the Twin-City to the two channels, make sure they are in phase by adjusting the 180° polarity reverse!
Using the Twin-City with Two Bass Amps
Why do guitarists have all the fun? The Twin-City works as well on bass as it does on guitar. Simply select between your two favorite amps to deliver the ultimate tone for each and every song.
| Model: | R8007115 |
| Manufacturer: | Radial Engineer |
