What are you driving your C2s with? (I have them and unless you are looking for low 20s they have been nothing short of impressive on a Sim W8)
The Dyn subs are great; I have used a pair a sub 500s with the C1s and really enjoyed the sound.
The Dyn subs are great; I have used a pair a sub 500s with the C1s and really enjoyed the sound.