These speakers are very different from each other, and I have owned them both. Recently, I decided to keep the RTS-3's and sell the Spicas because of the RTS-3's ability to play much louder, play deeper bass, have more extended treble (and MUCH faster too) and most importantly they just rock (compared to the Spicas).
Where the Spicas shine is they are VERY integrated in their sound presentation, being one the first time aligned speakers available (many years ago). Just BEWARE that Spicas DO NOT rock and they will BLOW if pushed even a little hard. They should only be used with low to medium music levels where you are NOT looking for strong bass beats, thrilling dynamics, etc...
Speaker drivers have come a LOOOONG way since the Spica was designed, and there are many speaker choices better than either of these two speakers in the $500+ range (used). I will say though, that the RTS-3 is amazing for a $200 speaker, and this is the "new" price! (That's why I bought them. I use the RTS-3's in my secondary "little system". The RTS-3's let me enjoy a WIDE variety of music, which the Spicas never could do).
Where the Spicas shine is they are VERY integrated in their sound presentation, being one the first time aligned speakers available (many years ago). Just BEWARE that Spicas DO NOT rock and they will BLOW if pushed even a little hard. They should only be used with low to medium music levels where you are NOT looking for strong bass beats, thrilling dynamics, etc...
Speaker drivers have come a LOOOONG way since the Spica was designed, and there are many speaker choices better than either of these two speakers in the $500+ range (used). I will say though, that the RTS-3 is amazing for a $200 speaker, and this is the "new" price! (That's why I bought them. I use the RTS-3's in my secondary "little system". The RTS-3's let me enjoy a WIDE variety of music, which the Spicas never could do).