Pricing and availability
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Price
Average Price: $215
High-end/Boutique
$60
$176+
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High-end
Price History
Based on price data from 5 merchants for "Radial Twin-City Active ABY Amp Switch". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Get ready to enhance your performance with the Radial Twin-City Active ABY Amp Switch, an essential tool for any musician. This active ABY switcher and buffer allows you to connect any two amps and drive them simultaneously without any noise, loss of gain, or degradation of your natural guitar tone. Thanks to Radial's highly acclaimed buffering technology and the Drag Control load correction circuitry, your signal remains clean and pure.
The set-and-forget Drag Control compensates for cable signal loss and introduces the perfect amount of loading to replicate the way your guitar and amp interact. To combat ground loops and their associated hum and buzz, the Twin-City is equipped with an isolation transformer on output B. Accompanied by a ground lift switch and 180 polarity reverse switch, this ensures your amplifiers play in phase while reducing noise to a minimum, even with older vintage amps.
As a buffer, the Twin-City lowers the impedance and susceptibility to noise, making it an ideal signal driver for large stages and long cable runs. Like all Radial products, the Twin-City is built from heavy 14 gauge steel, ensuring durability and stability on a busy stage. The EIS - Electronic Impulse Switching ensures unmatched performance without the challenges posed by mechanical switches. Clear, easy to see LEDs provide on-stage switching cues so you know exactly where you are at all times.
Key Features:
- Buffered ABY with Drag Control load correction
- Isolated output eliminates hum and buzz
- 180-degree polarity sets both amps in phase
- Compact design for an easy fit on any pedalboard
- Standard 9 volt power supply operation (adapter not included)
- Constructed from heavy 14 gauge steel for maximum durability
- EIS - Electronic Impulse Switching for seamless performance
- Bright, easy to see LEDs for clear on-stage switching cues
Product specs
| Type | ABY Switcher |
| Polarity Switch | Yes |
| Ground Lift | Yes |
| Inputs | 1 x 1/4" |
| Outputs | 2 x 1/4" |
| Power Source | 9V DC power supply (sold separately) |
| Height | 2" |
| Width | 3.6" |
| Depth | 4" |
FAQs
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What is the purpose of the Radial Twin-City Active ABY Amp Switch?
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The Radial Twin-City Active ABY Amp Switch allows guitarists to route their signal to two different amplifiers, enabling seamless switching between amps or using both simultaneously for a fuller sound.
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Does the Radial Twin-City Active ABY Amp Switch help with ground loop issues?
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Yes, the switch includes a ground lift feature that helps eliminate hum and noise caused by ground loops when connecting to multiple amplifiers.
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Can the Radial Twin-City Active ABY Amp Switch reverse polarity?
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Yes, it features a polarity switch, which helps prevent phase cancellation issues when using two amplifiers simultaneously.
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What kind of power supply does the Radial Twin-City Active ABY Amp Switch require?
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The switch requires a 9V DC power supply, which is sold separately.
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How many inputs and outputs does the Radial Twin-City Active ABY Amp Switch have?
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It has one 1/4" input and two 1/4" outputs, allowing for flexible amp routing options.
Videos
NYC LP Player
Radial Twin City ABY Drag Feature Demo
Reviews
PROS
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Eliminates noise and hum when running dual amps
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Preserves tone integrity without loss
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Offers ground lift switch for noise issues
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Enables blending or separation of amp outputs for versatile tonal options
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Sturdy and durable construction
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Features include LED lights and drag control for improved usability
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Quick and quiet switching functionality
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Compact design saves pedalboard space
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Can be powered by pedal power supply, avoiding batteries
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Provides buffered circuit for quiet, noiseless switching
CONS
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B output switches feel cheap and delicate
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Foot switching can be audibly loud in quiet environments
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May not eliminate hum with certain amp combinations, requiring additional equipment
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Radial Twin-City Active ABY Amp Switch.
Build quality
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Footswitches are noted for being dead quiet, avoiding jarring pops when switching amps.
Source
Features and functionality
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The polarity reverse switch simplifies phase alignment between amps.
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The ground lift feature effectively eliminates ground loop hum.
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The drag control and class-A buffer maintain tone integrity through long cables.
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The Radial Twin-City's class-A buffer is highlighted as a key feature for maintaining signal integrity, unlike simpler stereo splitting methods.
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The Twin-City's button configuration (Both + A/B) is designed for seamless amp switching, avoiding unnecessary silence by ensuring at least one amp is always active.
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Despite a pedalboard of Boss pedals, some users don't notice the buffer's impact, suggesting potential benefits when fewer pedals are used.
Source
Comparisons
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A user expressed dissatisfaction with the Boss AB-2 due to power requirements and switch reliability, highlighting the Radial as a superior choice.
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An active AB-Y pedal is superior to using stereo outputs for splitting signals, due to its ground lift and polarity reverse features.
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Some users consider the Lehle switches for their programmable buttons despite their higher price, indicating different priorities in switcher functionality.
Source
Use cases and applications
5.0 out of 5
Based on 1 Review and 7 Ratings
189
Don't waste your time looking for an ABY, just buy this one.
I say that because I went through about five different ABY pedals before I just took the plunge and bought this. I haven't had to worry about tone suckage or even phase issues
Artist usage
Add artist
It’s a bit blurry in the picture but it looks like Josh is using a Radial Twin-City ABY Amp Switch in his live set up with Jane’s Addiction.
In a live performance at IMMA, Dublin, Kim Gordon used the Radial Twin-City Active ABY Amp Switch, as seen in a video by Alex Oliveira on YouTube.
In this photo, which comes from Guitar Center's interview with Wolfe, Wolfe's pedalboard is shown. One of the pedals visible is the Radial ABY amp switcher.
Stijn's Radial Twin City ABY switch can be seen in this Instagram story posted by the band, showing both his' and Peter's pedalboards.
"A Dunlop Cry Baby Rack Module DCR2SR wah is next, followed by a Radial Twin-City Active ABY amp switcher," reads this rig rundown on Brent Purgason. The ABY amp switch can be seen sitting on the top of his rack.
"The signal chain starts with a Sennheiser ew 572 G3 wireless unit feeding a Peterson Stomp Classic strobe tuner. A Radial Twin-City Active ABY switcher splits the signal," reads this rig rundown by Premier Guitar.
"I run two different setups in one: 'A' is the tsl and Peavey together, run through a tuner, a 'red threat', a Digitech Whammy, a Memory Boy delay, into a Twin City aby. 'B' is the dsl into a tuner, an octave, a loop station, a delay pedal and into the twin city aby."
Peter's Radial Twin-City ABY Switch can be seen here on an Instagram story posted by the band showing his and Stijn's pedalboards.
In a photo from December 2010 at Auditorio Sur, Fernando Ruiz Diaz is shown using the Radial Twin-City Active ABY Amp Switch. The image is featured on Catupecu Machu's official Facebook page.
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Radial Twin-City Active ABY Amp Switch, it is most commonly used with the following gear.
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