The fog machine probably needs cleaning. Thanks. http://support.radioshack.com/support_tutorials/audio_video/audfaq-2BA13.htm#13K ... View more

Our on-line adapter catalog contains a number of plug adapters, including a 4-Piece Headphone Adapter Set. Edition3.  ... View more

You would need to use a 1/4" to 1/8" phone plug adapter that matches the mono or stereo configuration of the original plug Edition1.  ... View more

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Thanks for be a customer.  ... View more

The speakers should all be the same wattage, and the wattage should match the power output of the stereo. Edition3.  ... View more

Speakers are connected in series when the first speaker's positive terminal is connected to the next speaker's negative terminal. Edition2.   http://support.radioshack.com/support_tutorials/audio_video/audfaq-2BA5.htm#5A ... View more

such as car engines at a racetrack. Editon4.   http://shack.net/1BNDxrR ... View more

Active Noise Canceling on a set of headphones indicates that the headphones are designed to detect the frequency of ambient noise. Edition2. ... View more

Frequency response is a specification which, in headphones, describes how well the headphone reproduces the range of audio. edition2.   http://support.radioshack.com/support_tutorials/audio_video/audfaq-2BA9.htm#9A ... View more