| 摘要 |
A portable electronic device, such as a portable notebook computer, that includes a case made up of a top portion and a bottom portion with a base surface. The case contains a speaker having a front portion and a back portion, where the back chamber is formed in association with the back portion of the speaker. A first aperture is disposed through the bottom portion of the case, and an acoustic insulator is attached to the base surface of the case such that the acoustic insulator encircles the first aperture forming an external chamber. The external chamber is defined by the base surface, and the acoustic insulator being adapted to rest upon a support surface upon which the portable electronic device rests. The external chamber is coupled to the back chamber by the first aperture.
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