Speakers with fullness and weight?

Zd is right. The entire system contributes to the punch and weight of the sound. You need to match your amp to your speakers, obviously, and also consider your source.

I have Reference 3A de Capo I's powered by a YBA 201 integrated. It's good for now, but I know I can get a punchier, more weighty sound from a better amp - probably something along the lines of an ARC or a Rogue or a PrimaLuna.

It sounds as if you're looking for a warm sound in your speakers. You might try contacting Mapman (his Audiogon name) who knows quite a lot about which components add to the warmest sound.

I agree with the post that recommends looking at your entire system, especially the power quality. I added a PS Audio P3 AC regenerator and am amazed at the power, dynamics, and bass I am now getting. Before this I was considering new speakers because I thought my system sounded a bit slow and lifeless. The P3 transformed my system more than any other single component I have experienced. It was as if I got a whole new system. Of course this is my only experience but before looking to make an expensive upgrade a modest investment or tweak could give you what you are looking for.

A lot regarding fullness and weight has to do with properly targeting room size and acoustics and making sure you use an amp that is capable of maximizing speaker performance, nit just " driving" them. Do these two things right and most any well made speaker can deliver fullness and weight.

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.....

I listen to lots of indie and electronica and am very happy with my ATCs. Have also heard the massive active SCM50ASLs and they do dynamics in a breathtaking way.