Help! Calling all Edge pedal/ rig nuts

[MrTheEdge1996]

I was watching a video where Dallas is giving a tour of Edges PopMart rig, and I noticed a rather strange looking pedal, and I was wondering if anyone could tell me what it was.

It is at 4:20 of the video
U2 A Tour Of The Tour (Part 1 of 2) - YouTube

 

[BB Mac]

its a custom built box with A/B bypass for his korg SDD3000
if you see the video there is a song list with the korg preset
numbers disco 5 gone 3 ect

 

[MrTheEdge1996]

Thanks for replying! What purpose does an A/B bypass serve? I presume it's something to do with the amplifiers, since Dallas mentioned they have 7 amps on the road, and the highest number on the song list is 7.

 

[BB Mac]

hi again sorry i ment its up/down bypass box.he can scroll up or
down through the presets on the korg SDD3000 or just bypass it.
i dont know why i said a/b

the custom audio controller on the right side has the different Amps
to select...