Speakers play the biggest role in what you are looking for. Not the only role, but the biggest. I also own your current speaker in a second system and love VA speakers. Easy to listen to and full bodied.
Here are some other good speakers in terms of what you want..
Go up the line in VA!
Silverline Bolero, Sonata II and III
Soundlab M1 - be warned you need big power to drive these
Vandersteen line
I like my current Coincident Total Victory III speaker and this whole line of speakers are not thin and bright, but deliver nice body and tone.
Changing electronics can indeed change the character of a speaker somewhat, but the speaker still is what it is in the end. Ya, a tube amp can fill out the bass in a thinner sounding speaker etc..., but in the end you really need to start with the speaker and the overall sound personality you want. This is the best way to get at your goal. Then be sure you have an amp that matches the needs of your speaker.....
Here are some other good speakers in terms of what you want..
Go up the line in VA!
Silverline Bolero, Sonata II and III
Soundlab M1 - be warned you need big power to drive these
Vandersteen line
I like my current Coincident Total Victory III speaker and this whole line of speakers are not thin and bright, but deliver nice body and tone.
Changing electronics can indeed change the character of a speaker somewhat, but the speaker still is what it is in the end. Ya, a tube amp can fill out the bass in a thinner sounding speaker etc..., but in the end you really need to start with the speaker and the overall sound personality you want. This is the best way to get at your goal. Then be sure you have an amp that matches the needs of your speaker.....