• The Sphere Chamber                 
  
  This is a replica of the original Francois Louis^® mouthpiece design. It offers an unbelievable dynamic range with a full and rich sound color from the softest pianissimo to the most powerful fortissimo. This is a mouthpiece that can take all the air you can possibly give it and turn it into a full, colorful sound rich in harmonics. This is a mouthpiecepiece for those who love to use sound the way painters use color.

• The Francois Louis L Ligature fits this mouthpiece.

 

• The Medium Large Chamber           
  
  This piece features an ogival, more traditional type of chamber. It offers quite the same advantages in dynamics with more separation in the spectrum between highs and lows and offer a more airy sound with a lot of bounce. This is the perfect mouthpiece for jazz and hard bop styles of playing. It is reminiscent of the sound of the 50's, playing with the efficiency of the best modern mouthpieces.

• The Francois Louis L Ligature fits this mouthpiece.

• The "L" Model Ligature from Francois Louis fits this mouthpiece.
• B260 is a 2.60 mm tip opening (102/00") equivalent to the traditional 6 opening,
  combined with a medium facing length and a progressive facing curve. Very stable
  with enough flexibility to vary sound color, with fast response. Best fit with #2 1/2 to #3
  1/2 reeds.
• B285 is a 2.85 mm tip opening (112/00") equivalent to the traditional 7 opening,
  combined with a medium facing length and a soft facing curve. Great flexibility with a
  lot of projection and immediate response. Best fit with #2 1/2 to #4 reeds.
• B305 is a 3.05 mm tip opening (120/00") equivalent to the traditional 8 opening,
  combined with a medium short facing length and a progressive facing curve. This is
  the universal mouthpiece: very stable, centred pitch, small enough to be playable by
  good amateurs and students, big enough to put real amount of air and be playable by
  professionals. Lots of projection with bottom on the attack of the note, very precise.
  Virtually every reed strength is suitable, from #1 1/2 to #5.
• B325 is a 3.25 mm tip opening (128/00") equivalent to the traditional 8*/9 opening,
  combined with a medium long facing length and a soft facing curve. Due to the longer
  facing curve, it brings more resistance and takes more air. (This make it feel "bigger")
  The soft curve gives it a lot of flexibility. This is the best mouthpiece for the professional
  player that needs to use all possibilities of dynamics, sound colors and range in one
  mouthpiece without having to struggle too hard on a real big mouthpiece. Best fit with #2
  1/2 to #4 reeds.
• B345 is a 3.45 mm tip opening (136/00") equivalent to the traditional 9* opening,
  combined with a medium long facing length and a progressive facing curve. Very well
  balanced and efficient, it keeps a well-centred pitch with flexibility, lot of projection and
  a big fat low range. For the player who likes to blow a lot of air without losing control.
  Best fit with #2 to #4 reeds.
• B365 is a 3.65 mm tip opening (144/00") equivalent to the traditional "10*" opening,
  combined with a long facing length and a progressive facing curve. Enormous sound,
  flexibility, projection, very fat low range, for the player who needs a total freedom of
  expression and is prepared to put a lot of air, having developed a good control of the
  embouchure/air stream balance. Plays very well on the bass saxophone also.
  The Spectruoso mouthpiece for baritone saxophone comes only in Signature edition.

Openings Comparative Chart

1/1000 inch 1/100  mm	100 254	102 259	105 266	110 279	112 285	115 292	120 305	125 317	128 325	130 330	135 343	140 356	145 368
Mouthpiece	-	B260	-	-	B285	-	B305		B325	-	B345		B365
Otto-Link	6	-	6*	7	-	7*	8	8*		9	9*	10	10*
Lawton	5*	-	6	6*	-	7	7*	8		8*	9	9*	10
Vandoren	-	-	B75	-	-	-	-	B95		-	-	-	-