greginnh,
I don’t have 7T’s but the previous 7B’s and with a few earlier amps it took a Pass X250 to really open them up. My Aerial’s sounded nice with smaller amps but they needed power to show what they’re capable of. With smaller amps at low listening levels the 7B’s were not that enjoyable, but with my Pass I can listen at fairly low levels and enjoy them. I too use a tube preamp with SS amp.
I don’t have 7T’s but the previous 7B’s and with a few earlier amps it took a Pass X250 to really open them up. My Aerial’s sounded nice with smaller amps but they needed power to show what they’re capable of. With smaller amps at low listening levels the 7B’s were not that enjoyable, but with my Pass I can listen at fairly low levels and enjoy them. I too use a tube preamp with SS amp.