Willmi,
Since you will be adding a sub to get your bass needs, I'd go with the source that has the most neutral tonal character.
Believe it or not; Arcam CD players would likely yield better results with your current rig, than say the Apollo or Naim players. The Apollo will sound a bit flat in that system. The Naim by contrast will be a bit tilted in the top end. Arcam will be a great middle ground between the two on that rig. Unfortunately, I haven't yet heard the much talked about Cambridge piece.
I have nothing to add with your choice of sub. REL makes fantastic musical sub's that will have no problem matching the speed of the Arro. Totem's own STORM is also another good option.
Since you will be adding a sub to get your bass needs, I'd go with the source that has the most neutral tonal character.
Believe it or not; Arcam CD players would likely yield better results with your current rig, than say the Apollo or Naim players. The Apollo will sound a bit flat in that system. The Naim by contrast will be a bit tilted in the top end. Arcam will be a great middle ground between the two on that rig. Unfortunately, I haven't yet heard the much talked about Cambridge piece.
I have nothing to add with your choice of sub. REL makes fantastic musical sub's that will have no problem matching the speed of the Arro. Totem's own STORM is also another good option.