I have this pickup on 2 archtops:
https://www.pickup.world/product/archtop-guitar/
It is a GREAT pickup...as close as "sounds like my guitar, only louder" as I have ever experienced.
I have it as the ONLY pickup on one archtop and wired in stereo with a Bartolini floater on the other.
Be aware that this is very LOW gain pickup, you MUST use a preamp with it.