If you're talking about Bari the company (vs. Bari the horn), it's not a dark mouthpiece. A large chamber hard rubber mouthpiece implies something like a Buescher, which is FAR darker than anything else out there.segaleon said:"Large chamber hard rubber mpc" does not guarantee a dark sound. Different makes will give you significantly different levels of brightness. Try Bari if you want a dark sound.
Alternatively, you could get a black lacquer or black nickel horn...but seriously, you should look around for an old Buescher or Conn piece with ultra-large chamber...it will probably have a small tip opening but can be opened. Play it as is, and see if you really want a 'darker' sound or if something else is missing.Giganova said:If you want to sound dark, why don't you play alto or tenor instead?? :?