For me, a little extra mid bass (or a little underdamping), combined with the falling FR through the presence region mentioned by Duke, defines "smooth".
Vandy's model 2 meets the description pretty well, so I assume that this is what you're after.
I own the Verity Parsifal/Encore and it's a textbook example of this. FR falls app. 5db (anechoically) from app. 2khz to 5khz and the bass will, in most rooms, be a bit elevated between 75hz and 150hz. While this may horrify some folks, the result is IMHO very, very musical.
Many of the older Sonus Fabers also feature this tonal combo, but the Cremonas, while retaining a bit of the mid bass bump, are much flatter through the presence region than were some of the vintage models.
I have owned both speakers for many years, so this post is based on extensive personal experience. However, as always, YMMV.
Good luck.
Marty
Vandy's model 2 meets the description pretty well, so I assume that this is what you're after.
I own the Verity Parsifal/Encore and it's a textbook example of this. FR falls app. 5db (anechoically) from app. 2khz to 5khz and the bass will, in most rooms, be a bit elevated between 75hz and 150hz. While this may horrify some folks, the result is IMHO very, very musical.
Many of the older Sonus Fabers also feature this tonal combo, but the Cremonas, while retaining a bit of the mid bass bump, are much flatter through the presence region than were some of the vintage models.
I have owned both speakers for many years, so this post is based on extensive personal experience. However, as always, YMMV.
Good luck.
Marty