I think the Pulsars would be a great speaker for your situation. They are not sterile nor are they overly warm, they probably image and soundstage as well or better than your Ref 3As and will certainly add the bass you're currently lacking. They may even have enough bass if you move to a larger room as well.
The Dyns are great too, but personally I can't get past the looks. Not sure the Avalons would give you the warmth you're looking for but I've not heard them in a while. Best of luck.
The Dyns are great too, but personally I can't get past the looks. Not sure the Avalons would give you the warmth you're looking for but I've not heard them in a while. Best of luck.