Get on the good foot.
The BOSS AB-2 is a 2-way selector pedal that makes changing inputs or outputs easy. One stomp is all it takes to instantly switch between 2 guitars or effects setups, change amplifiers or switch between an amp and tuner. Roc... read more
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I really don't see the point why an AB switch needs any power, but if it does, why there is only one possibility to use batteries and why not external power supply? If you leave your cables connected the battery power is draining even without usage.
edited 8 months ago
Problematic use of batteries; does not switch silently
This is probably one of Boss's poorest designs. This AB switch requires power and has no plug for a DC power supply, so you have to use batteries. Unfortunately, the pedal is switched on as soon as you connect a cable to the input, as you would on any pedal board, and as there is no on/off switch, the batteries drain within a few days if you don't unplug the cables. The power requirement is there to enable silent electronic switching, but there is still a notable pop when you press the footswitch. As a result, I would not recommend this to anyone who uses it more than just occasionally, and you can't really use it on a fixed pedal board.
Get a Morley
First off, AAA Batteries. Really Boss? Second, this unit is NOISY. I've not been able to run it without noise. I used this for a week switching between amps and comparing tones, and it wasn't a problem in the amps or the pedalboard or the outlets or the cables, it was this pedal.
Just get a Morley ABY. More functions, that are much more functional.
Swapping guitars is a lot easier now.
It's possible to choose between sending a signal to two different effect chains or amps, but also choose between two different input signals like for example two guitars in the AB2. Swap guitars? Press the foot controller and go! Very nice.
Get on the good foot.
The BOSS AB-2 is a 2-way selector pedal that makes changing inputs or outputs easy. One stomp is all it takes to instantly switch between 2 guitars or effects setups, change amplifiers or switch between an amp and tuner. Rock-solid BOSS construction ensures the AB-2 will stand the test of time.