Amplifier brand/designer with the most unique and consistent “house sound?”

Rob Carver will voice any amp you want. 
 He has made some amazing amplifiers. 
 Have absolute respect for Rob Carver!
if I had the coin, those new silver seven amps at 900W of tube power would be mine.

 And the 350’s in my 2nd system.

Marantz KI signature models.... Sony as mentioned.... And luxman also seem consistent even valve to SS

Another +vote for AYRE. Solid state products with a tube-like Soul.

Happy Listening!

Naim. Rythm and pace.

Linear Tube Audio