I would try one of a couple things:
note: I am a Dynaudio dealer....
Dynaudio special 25 or C1 would offer a significant step up in performance from the S1.4
A really good sub, or better yet PAIR of really good subs in stereo would provide a significant improvement to your existing speakers, and/or work very well with the C1 if you choose to go that route.
Classical and piano can be improved greatly by a properly implemented subwoofer, and while the S5.4 would be a step in the right direction, I think the C1s with a pair of sub500s would be a better end result.
best of luck and happy listening!
note: I am a Dynaudio dealer....
Dynaudio special 25 or C1 would offer a significant step up in performance from the S1.4
A really good sub, or better yet PAIR of really good subs in stereo would provide a significant improvement to your existing speakers, and/or work very well with the C1 if you choose to go that route.
Classical and piano can be improved greatly by a properly implemented subwoofer, and while the S5.4 would be a step in the right direction, I think the C1s with a pair of sub500s would be a better end result.
best of luck and happy listening!