Help for preamp and phono stage. Tube options

Hi,
I know I am replying quite late to this post.. I eventually chose an EAR684 and the matching with the accuphase A45 sounds good, at least to my ears.
The cables I am using are Wireworld Eclipse thru the amps, and the speakers are connected with Linn cables K400, if I am not mistaken with the code.
SInce I live in Japan, I have the chance to get good prices on local products. And since I am about to leave the country early May I was wondering if getting one more Accuphase to bi-amp. I don't know if my only A45 is enough to drive the Majik Isobarik. I was thinking to add an A30, A45 or P4100.
Any advice? Do I need more power than one A45?
Thank you so much.

Hi, Thanks for your reply.
I eventually decided to keep my A45 power amp and will trade in my Linn MDSI and EAR864 preamp for a Linn Akurate DSM. It has also a very good phono stage. I heard the 2 pieces together and they sounded beautiful with a pair of B&W 804. My speakers have less efficiency: 88db vs 90 of the B&W but go much deeper. Several Linn experts and multi brand dealers believe is the preamp I should fix. In the future I might bi-amp with an additional Acccuphase or change the power amp to Naim, let's see. But I don't fancy much the sound of an all Linn system, the power amp make it too dry and lean eventually, even if bi-amped and Aktiv.