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In Home Consultations
Liptons has a well appointed store facility, with home-like theatre showrooms for viewing and listening More...
Custom Home Theatre Design
If you are considering a dedicated theater room, or even just a family room . . .let LIPTONS help you. More...
Pre-Wiring: Residential & Commercial
Liptons offers a complete new and existing structured and pre-wiring service. More...
Control 4 Home Automation
Liptons designs, installs, and programs home automation systems from CONTROL 4. More...
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| Term | Definition |
| Cathode Ray Tube | Analog display device that generates an image on a layer of phosphors that are driven by an electron gun. |
| CD-R | Recordable Compact Disc |
| CD-RW | Rewritable Compact Disc |
| Center Channel | The center speaker in a home theater setup. Ideally placed within one or two feet above or below the horizontal plane of the left and right speakers and above or below the display device, unless placed behind a perforated screen. Placement is important, as voices and many effects in a multichannel mix come from this speaker. |
| Channel | In components and systems, a channel is a separate signal path. A four-channel amplifier has at least four separate inputs and four separate outputs. |
| Chrominance | Chrominance: (C) The color portion of a video signal. |
| Component Video | A signal that's recorded or transmitted in its separate components. Typically refers to Y/Pb/Pr, which consists of three 75-ohm channels: one for luminance information, and two for color. Compared with an S-video signal, a Y/Pb/Pr signal carries more color detail. HDTV, DVD, and DBS are component video sources, though most DBS material is transcoded to component from composite signals. |
| Composite Video | A signal that contains both chrominance and luminance on the same 75-ohm cable. Used in nearly all consumer video devices. Chrominance is carried in a 3.58-mHz sideband and filtered out by the TV's notch or comb filter. Poor filtering can result in dot crawl, hanging dots, or other image artifacts. |
| Contrast | Relative difference between the brightest and darkest parts of an image. A contrast control adjusts the peak white level of a display device. |
| Crossover | A component that divides an audio signal into two or more ranges by frequency, sending, for example, low frequencies to one output and high frequencies to another. An active crossover is powered and divides the line-level audio signal prior to amplification. A passive crossover uses no external power supply and may be used either at line level or, more commonly, at speaker level to divide the signal after amplification and send the low frequencies to the woofer and the high frequencies to the tweeter. |
| Crossover Frequency | he frequency at which an audio signal is divided. 80 Hz is a typical subwoofer crossover point and is the recommended crossover point in theatrical and home THX systems. Frequencies below 80 Hz are sent to the subwoofer; signals above 80 Hz are sent to the main speakers. |
| Crossover Network | An electrical circuit used to split the signal into different frequency bands, e.g. (splitting the signal into treble and bass for a two-way loudspeaker.) Crossovers are used in speakers to route the various frequency ranges to the appropriate drivers. |
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