accuphase A45 is enough for Linn Majik Isobarik?

I own an A45 to drive a pair of Linn Majik Isobarik and wondering if I should bi-amp adding another A45 or a P4100 to support the bass section. I really can't figure out how much power I will need for a "normal", meaning not very loud, use. I mean, I just don't want to have fatigue in the system driving the speakers. Maybe even one A30 to use for the tweeter and super tweeter would suffice combined to my A45?
Oh, I forgot to mention, I have an EAR864 with phono stage as a preamp and work with my LP12. Then I have a DSI which I use as streamer.
Thank you very much for your suggestion on which power amp composition would best suit my speakers!
I listen to Jazz and Brit Rock from 60's to 80's mainly.
Looking forward to your advice!