Hi, the new Quatros should suit your needs since they will have an ajdustable bass amp. It's similarity in this respect to the Model 5 will allow you to place them where you (generally) want them and then to tune the bass for that spot. Additionally, it's likely that they will sound better than 3A Sigs due to the constant improvements that RIchard makes in his speakers.
Otherwise, the 3A Sigs are probably not a good idea based on the room dimensions you have. A pair of 2Ce Sigs would be great with subs, but not as refined as the 3s or Quatros.
Good luck!
Otherwise, the 3A Sigs are probably not a good idea based on the room dimensions you have. A pair of 2Ce Sigs would be great with subs, but not as refined as the 3s or Quatros.
Good luck!