Just checked out the spec for the Orchid pre-amp. It looks very good indeed.

I rarely use my K&K directly through a PA but, if I did, I think I'd go for the Orchid as well. Before I got the K&K, I used a very good DI box to split the sound between stage amp and PA mixer. I now find I get a better sound "out there" by using a Shure mic dropped just over the Roland speaker - and the mic lead goes to the PA.

The only slight downside of that is I can't adjust the stage amp volume without also adjusting the PA volume - but that's probably a good idea. Once the sound check has been done, I leave it where it is - no guitarist's volume creep for me!