I have the Eggleston Andra (not Mk II) and used the Tenor 75's for about 3 weeks (thanks Frankie you meathead!) Overall, the sound was magical but the bass was loose and there was not enough of it (I am not a bass hound either). Unless the Andra 2 made a significant improvement in the bass cabinet's efficiency, you need more juice. I am fully aware of the upgrade changes- the keys were increasing the volume of the cabinet and sealing it up. In short, I am afraid that the amp and speaker are not a good match.
Now, I HAVE heard the tenor 75's and stero 150 hybrids on Kharma midi grands and exquisite ref 1D's. There is where you will hear the pinnacle of system synergy between amp and speaker. Where the Tenors sound loose (in the bass only- everywhere else they sound superb) on my Andras, they absoulutely deliver with the Kharmas (as I am sure Mike can attest). This just confirms the importance of system synergy. Dont forget, my ears are not your ears, each room is different and, blah, blah, blah. Just FYI,I use a Krell FPB600 and it sounds very natural, open and accurate. (the preamp is a Hovland HP100 which may contribute a bit to my bass issue. Again, I just don't think the Tenor has enough gas for the Egglestons in the lower registers. How does your CJ sound? Do you not like it or do you just have the uprgrade bug like most of us? I would suggest big VTL's like the 450's or the big Manley Neo Classics, maybe even the Parasound JC-1's. All of these options cost less and probably match better to the Andra. If your heart is set on the Tenors, then you better look for another loudspeaker. So to answer your questions, don't choose the Tenor, solid state sounds remarkably good with the Andra even though I am a tube lover at heart, and choose what you like!
Just my two cents. Brian