Audio Advisor sells Vincent Audio which also makes a hybrid integrated.
Another thought is to purchase a tube preamp to drive your SS amplifier since it seems to please you driving your Polk speakers.
Polk L100s - tube integrated recommendation
I have the L100s and very much enjoy them with SS. After 30years of SS I want to try tubes and of my 4 speakers sets I want to try the L100s with tubes.
Ken (Stereophile reviewer) wrote about how well the Cary SLI80HS works with the L100s, however, since this will be my entry into tubes I want to try something a little more affordable (<$3000 new). Can anyone suggest FROM EXPERIENCE a tube integrated that work well? Thanks.