I would think you would need some sort of pre-amp. I don't think 406x + BB will give a good enough level. Maybe, though. I guess I don't use much gain on my MMA6000 with the 4060's, so maybe it would work.
I've had good luck taping with the MacBook. So that part should be okay. I have taped 4060>MMA6000>MacBook with decent results.
MIKE B