You would definitely get more bass with the 40.1 if the position of the speakers remains almost similar as the SHL5 in the room. Try getting the speakers out from the front wall more. You can refer to Pdreher's setup in his system page. Another friend who owns the 40.1 had the speakers in free space with more than 6' distance measured from the wall to the rear of the speakers. As with most speakers, imaging and airiness would improve when the speakers are placed further away from room boundaries.
Good to hear the 40.1's had lived up to your expectations.
Good to hear the 40.1's had lived up to your expectations.