High frequency compression drivers

A compression driver comprising:

• a. an annular diaphragm having a first coil support portion, a second coil support portion, a first curved resilient portion, a second resilient curved portion and a voice coil support portion wherein said voice coil support is disposed between said first and second resilient curved portions;
• b. a voice coil wound on said coil support portion of said annular diaphragm;
• c. a magnetic assembly having a magnetic gap in which said voice coil and said voice coil portion of said annular diaphragm are disposed;
• d. an inner support ring having a bottom surface and first curved groove in said bottom surface with said inner support ring being coupled to said magnetic assembly;
• e. an outer support ring having a bottom surface and a second curved groove in said bottom surface with said outer support ring being disposed concentrically around said first support ring and coupled to said magnetic assembly, wherein said outer support ring is disposed adjacent, but not contiguous, to said inner support ring so that a first concentric air gap is formed between said inner and outer support rings and wherein said first and second support portions of said annular diaphragm are clamped between said inner and outer support rings, respectively, and wherein said first and second resilient curved portions are disposed adjacent, but not contiguous, to said first and second grooves of said inner and outer support rings, respectively, to form an expanding/contracting cavity of air, with said expanding/contracting cavity of air fluidly coupled to said first concentric air gap;
• f. a central plug mechanically coupled to said inner support ring and said magnetic assembly wherein said central plug is annular and has an outer surface in the shape of a bullet;
• and
• g. a housing mechanically coupled to said outer support ring and said magnetic assembly wherein said housing is annular and has a throat having a first open end of a first diameter, a second open end of a second diameter which is smaller than said first diameter and inner surface which is concentrically aligned with said outer surface of said central plug whereby said central plug and said housing form a second concentric air gap which is disposed adjacent to said first open end of said housing end and is also disposed adjacent and contiguous to said first concentric air gap.

A compression driver comprising:

• a. an annular diaphragm having a first coil support portion, a second coil support portion, a first curved resilient portion, a second resilient curved portion and a voice coil support portion wherein said voice coil support is disposed between said first and second resilient curved portions;
• b. a voice coil wound on said coil support portion of said annular diaphragm;
• c. a magnetic assembly having a magnetic gap in which said voice coil and said voice coil portion of said annular diaphragm are disposed;
• d. an inner support ring having a bottom surface and first curved groove in said bottom surface with said inner support ring being coupled to said magnetic assembly;
• e. an outer support ring having a bottom surface and a second curved groove in said bottom surface with said outer support ring being disposed concentrically around said first support ring and coupled to said magnetic assembly, wherein said outer support ring is disposed adjacent, but not contiguous, to said inner support ring so that a first concentric air gap is formed between said inner and outer support rings and wherein said first and second support portions of said annular diaphragm are clamped between said inner and outer support rings, respectively, and wherein said first and second resilient curved portions are disposed adjacent, but not contiguous, to said first and second grooves of said inner and outer support rings, respectively, to form an expanding/contracting cavity of air, with said expanding/contracting cavity of air fluidly coupled to said first concentric air gap;
• f. a central plug mechanically coupled to said inner support ring and said magnetic assembly wherein said central plug is annular and has an outer surface in the shape of a cone;
• and
• g. a housing mechanically coupled to said outer support ring and said magnetic assembly wherein said housing is annular and has a throat having a first open end of a first diameter, a second open end of a second diameter which is smaller than said first diameter and inner surface which is concentrically aligned with said outer surface of said central plug whereby said central plug and said housing form a second concentric air gap which is disposed adjacent to said first open end of said housing end and is also disposed adjacent and contiguous to said first concentric air gap.