Thanks for the kind words. As to your question...
There are three models that share the same basic driver configuration - the Supercharged SongTowers, Veractity ST's and Veracity HT2-TL's. They feature 5", 6" and 7" Seas Excel magnesium drivers respectively.
All three of these designs were voiced for an F3 of 34Hz. But if you compare the sound of the Supercharged SongTowers to the HT2-TL's, you will swear the HT2-TL's play deeper. They don't. They just move more air down low. Since the Veracity ST's have a 6" driver that sits between the 5" and the 7", you would assume that the perceived bass would be in the middle of these two designs. But in reality, the sound of the Veracity ST's is closer to the HT2-TL's than the Supercharged SongTowers.
Since they all use a custom version of the RAAL 70-20, the upper frequencies are the same. So the only difference between these three designs is the perceived level of deeper bass.
I hope this answers your question.
- Jim