ACOUSTIC TRANSDUCER ASSEMBLY

摘要

Driver for an acoustic transducer having a moving coil of substantially equal length to the air gap. The air gap may itself be extended in length using an upper or lower lip, or both. A stationary coil is also provided. The moving and stationary coils can be controlled by suitable control blocks to form an electromagnet-based transducer with reduced distortion.

主权项

1. A driver for an acoustic transducer comprising:
a moving diaphragm; a driver body formed of a magnetic material, the driver body comprising:
a center post;an outer wall coupled to the center post via a bottom portion of the driver body; andan annular plate extending from the center post outwardly toward the outer wall; a moving coil coupled to the diaphragm, the moving coil disposed at least partially within an air gap formed between the annular plate and the outer wall; and a stationary coil disposed within a cavity defined by the annular plate, outer wall, bottom portion and center post, the stationary coil being positioned in closer proximity to the center post than the moving coil.