If you are looking for a warmer, fuller sound the Abbys would be great for your Sophia Baby. The Omega Super 3 are incredibly fast and detailed, but do not offer a warm and full sound at all. A good inbetween alternative might be the Horn Shoppe Horns: They sound fuller than the Omegas, but are about as quick. I just listened to them with a First Watt F1 and was quite impressed. It gave a full quick sound with good bass. With your Sophia they might need some corner loading and I am not a 100% shure about the match but is would be worth a try. The Horns can be ordered on trial for 30 days and are just a little more than you aimed for. My favorite is still the Abbys, but the Horns were quite impressive.
Enjoy!
Enjoy!