Fulltone Custom Shop True-Path ABY - True-Path ABY, Black

Guitar Signal Splitter/Combiner, with Truly Silent Switching, Switchable JFET Buffers, Hard Click Buttons, and Phase Switch - Black
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Fulltone Custom Shop True-Path ABY - True-Path ABY, Black image 1
Fulltone Custom Shop True-Path ABY - True-Path ABY, Black image 1
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Fulltone Custom Shop True-Path ABY - True-Path ABY, Black
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Completely Silent Switching from Fulltone

You may just find that the Fulltone True-Path ABY guitar switcher is the most tonally-transparent switcher you've ever used. Fulltone packed the True-Path ABY with top-notch components to make sure that your tone sounds the same on the way out as it does on the way in. And to match your tastes, there's also a switchable JFET buffer on each channel to help drive long signal chains without losing tone. But the best part of the True-Path ABY's innovative design is that you'll never hear a "pop" through your amp when you're switching.

Fulltone True-Path ABY Guitar Switch at a Glance:
  • Top-notch electronics for tonally-transparent operation
  • Custom-designed photocells mean ultra-low resistance
  • Switchable JFET buffers for maximum flexibility
Top-notch electronics for tonally-transparent operation

Fulltone put a lot of thought and development into making the True-Path ABY the most transparent switcher possible, and went to great lengths to get the right components for the job. The True-Path ABY uses a custom-wound, nickel core 1:1 transformer that eliminates grounding issues safely while leaving your tone intact. And Fulltone spent over a year working with photocell developers to create an optocoupler with only 50-ohms of resistance - most other switchers have 300- to 300-ohms of resistance, and you can hear the difference. But most of the electronics in the True-Path ABY are there for one reason - to eliminate the "pop" sound when switching, for completely silent switching.

Custom-designed photocells mean ultra-low resistance

Sonically speaking, electrical resistance changes your signal's tone. Not always a bad thing when you're looking for an effect, but completely undesirable when you're just trying to pass your signal along. The only resistor your guitar's signal runs through in the True-Path ABY is the optocoupler, which Fulltone helped develop to be an ultra-low 50-ohms - way lower than the average 300-/400-ohm load in most switchers. So you'll hear the same tone coming out of the True-Path ABY as you sent into it.

Switchable JFET buffers for maximum flexibility

The True-Path ABY gives you switchable JFET buffers for each channel to give you flexibility in different applications. If you have to drive a long cable chain after the True-Path ABY, turn on the buffer to maintain your tone. Using fuzz pedals, or other effects that sound best with a high-impedance signal? Turn off the buffer, and you'll hear the richness of your fuzzes and distortions without excessive "fizziness" or harshness. No matter what your signal chain has in it, you can make it sound its best with the Fulltone True-Path ABY.

Fulltone True-Path ABY Guitar Switch Features:
  • Tonally-transparent ABY guitar switcher
  • Use it to switch one guitar between two amps, or drive two amps at the same time
  • Switchable JFET buffer changes your signal to low-impedance to drive long cable chains
  • Phase switch lets you correct phase issues between two amplifiers
  • Custom optocoupler circuit has ultra-low resistance for transparent operation
  • Truly silent switching - no pops or clicks!
  • Color: Black
The Fulltone True-Path ABY is a truly transparent and silent guitar switcher!

Additional Media

True-Path ABY - True-Path ABY, Black User Manual

Tech Specs

Type I/O Selector
Inputs 1 x 1/4"
Outputs 2 x 1/4"
Height 5.25"
Width 4"
Depth 1.8"
Weight 1.44 lbs.
Power Supply Included Yes
Manufacturer Part Number CS-ABY-HT

Customer Reviews

Based on 3 reviews
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Fulltone TruePath ABY-ST Pedal is the BEST CHOICE

The Fulltone TruePath ABY-ST pedal is an amazing piece of gear. I find it superior to the stereo capable Lehle Little Dual because it is totally silent and smooth in it's switching (It accommodates only a mono signal source though). Of course both of these high end ABY pedals have ground lift and phase reversal features, but the Fulltone's switchable buffers on channels A & B are going to be quite useful, when driving long lengths of instrument cables.Both units are built robustly....so no reliability issues I can forsee. The Lehle has sexy European design, beautiful LED displays, ergonomic buttons and stereo capability, but I gotta say the Fulltone is a no-nonsense, beautifully conceived piece of work. The white ST (soft touch) model is a joy to actuate. TOTALLY silent and the buttons work like butter, underfoot. Smooth operation makes for rapid and precise switching.This is by far the most feature-laden, smoothest and thoughtfully designed ABY pedal I have seen.
Music background: Longtime hobbyist......

Very disappointed

Bought the True-Path ABY to replace a Radial TwinCity Bones ABY that was having noise problems due to external power supply noise radiation. The Tru-Path is even more susceptible to noise than the Radial. After reorienting the power supply (Voodoo Labs ISO-5), the Radial is dead quiet while the True-Path remains noisy. Even switching room lights on/off is picked up by the True-Path, but not the Radial. In addition, the True-Path buffer is very harsh sounding compared to the Radial buffer with Drag Control. In short, the True-Path does not stack up to professional use.

Very noticable tone change

As advertised you can change channels and there is no pop or other noise, however you'll notice your tone sounds closed and dull. Not acceptable at this price point.
See also: Footswitches, Fulltone Custom Shop, Fulltone Custom Shop Footswitch / Selector Pedals