Apple has released a new speaker system that integrates a sound radiating surface. Apple’s invention relates to a speaker assembly having an enclosure with an acoustic output opening, an acoustic chamber, and a speaker driver. The speaker driver includes a sound radiating surface, first and second voice coils positioned along opposite faces, respectively, of the sound radiating surface, and first and second magnet assemblies having elongated gaps within which portions of the first and second voice coils are positioned to vibrate.

The first magnet assembly elongated gap can be orientated lengthwise toward the acoustic output opening, while the second magnet assembly elongated gap is oriented lengthwise toward the acoustic chamber. The elongated gaps may be used as air flow paths to direct a flow of air toward the acoustic output opening and toward the acoustic chamber so that a height or rise of the enclosure need not be significantly increased to accommodate the stacked voice coil and magnet assembly configuration.
The speaker may include a dual voice coil driver a having first magnet assembly and a second magnet assembly. Each of first magnet assembly and second magnet assembly may define gaps within which a portion of the coils may be positioned to produce a push pull speaker system. In other words, one the of coils acts to “push” the sound radiating surface while the other coil simultaneously “pulls” the sound radiating surface in the same direction.
Apple credits Christopher Wilk as the sole inventor of this patent application which was originally filed under serial number 226383 in Q3 2011.



Logitech’s Boombox has a sleek aspect and a specially designed acoustic chamber that delivers crystal clear sound with enhanced bass. You can enjoy the boom-boom beat of your favorite tracks all day long and anywhere; the speakers have a rechargeable battery of 10 hours life, thus, there are no wires to keep you in a single place.
You can also use the handy Mini Boombox during meetings and clearly reproduce the sound of your phone calls. You can pair Logitech’s Mini Boombox to any Bluetooth-enabled device for
The patent reveals a speaker that is placed on the backside of the device and that has a horizontal former and a small piston area, occupying little space and offering a more qualitative sound:




The advanced DSP technologies takes care that you enjoy the high quality sound. The Computer-optimized equalization (COE) combines with the Optimized compression topology (OCT) to adjust the spread of the sound to a rich and wide soundstage.




