I'm not sure what you hope to get from other amps... I have listened to your amps driving a number of speakers very well indeed!
Anyway, if you are adamant, I suggest that even more powerful amplification OR class A, are the way to go. So Adyton is a contender, they offer a hi powered mono. So is Krell, for that matter (though you may not like the sound if you like yr Electro). You might even consider used class A behemoths: MLevinson, VTL as suggested, AR 600... Keep in mind, however, that maintaining yr huge tube amp will be costly!
I have listened to these speakers extensively with German & Swiss class A amps (Symphonic Line & FM Acoustics).
Anyway, if you are adamant, I suggest that even more powerful amplification OR class A, are the way to go. So Adyton is a contender, they offer a hi powered mono. So is Krell, for that matter (though you may not like the sound if you like yr Electro). You might even consider used class A behemoths: MLevinson, VTL as suggested, AR 600... Keep in mind, however, that maintaining yr huge tube amp will be costly!
I have listened to these speakers extensively with German & Swiss class A amps (Symphonic Line & FM Acoustics).