Look at the Peachtree Nova 300 or 500 one of the sweetest integrated amps out there with a great built in DAC, USB and optical ins and a potent 300wpc.
https://www.themasterswitch.com/review-peachtree-audio-nova300
I bought one last year and it has changed how I listen to music.
It would be a great match for your Martin/Logans
https://www.themasterswitch.com/review-peachtree-audio-nova300
I bought one last year and it has changed how I listen to music.
It would be a great match for your Martin/Logans