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Mobile Electronics Glossary of Terms and Definitions - C

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Mobile Electronics Glossary - C
  C - Propagation velocity of sound at STP, approx. 342 m/s
  Cabin Gain - With a subwoofer system, the output gained within a vehicle's interior.
  CAN or CAN-bus - Controller Area Network (CAN or CAN-bus) is a computer network protocol and bus standard designed to allow microcontrollers and devices to communicate with each other and without a host computer. It was designed specifically for automotive applications but is now also used in other areas. CAN is also supported in the Linux Kernel since the 2.6.25 version. CAN-bus was originally developed in 1988 by Intel Corporation and Robert Bosch GmbH
  Capacitance - The ability of a conductor or dielectric to store electric charge.
  Capacitor - 1 (polarized) An electrical circuit element used to store charge temporarily, consisting in general of two metallic plates separated by a dielectric. 2 (non-polarized) A crossover component used to filter out lower frequencies and allow higher frequencies to pass.
  Capture Ratio - Expressed in decibels, with the smaller the number the better. The ratio of captured signals of different strength on the same frequency.
  Cas - Acoustical equivalent of Cms
  CD Text - A compact disc and player feature utilizing disc, track, and artist information encoded directly on the CD media. Both playback and media components must have CD Text compatibility.
  Chassis - The metal frame of the vehicle.
  Circuit - 1 Any closed path followed by electrical current. 2 A configuration of electrically or electromagnetically connected components or devices.
  Circuit Breaker - A device that protects electric circuits by interrupting power in a circuit when an overload occurs. Unlike a fuse a circuit breaker is resetable. Rated in amperes (amps).
  Clipping - Audible distortion that occurs when continuous power-to-peak power capabilities (headroom) are exceeded. "Turn it down!"
  Closed Circuit - A continuous unbroken circuit in which current can flow without interruption.
  Cmes - The electrical capacitive equivalent of Mms, in farads
  Cms - The driver's mechanical compliance (reciprocal of stiffness), in m/N
  Coaxial - A speaker composed of larger cone for low range frequencies and a smaller cone or tweeter for higher frequencies aligned on the same axis. A crossover network is necessary to route the proper signals to each driver. These may be passive (usually included). If the speakers are bi-amplified, an active crossover will be used to route the proper range of frequencies to the respective amplifier channels.
  Coherence - Refering to sound quality, being aesthetically ordered, integrated and natural to the ear.
  Coil (Choke, Inductor) - A crossover component used to filter out higher frequencies and allow lower frequencies to pass.
  Compliance - The relative stiffness of a speaker suspension, specified as Vas.
  Conduction - The mode of heat transfer within a body or between bodies in contact with each other.
  Conductivity - he ability of a conductor to allow the passage of electrons, measured in the current per unit of voltage applied, shown in resistance.
  Cone - The most common shape for the radiating surface of a loudspeaker referred to as the part that moves the air.
  Constant 12 V (+) - A lead, wire, or connection point that shows positive 12 volts regardless of ignition key position or any other switch; Positive terminal of 12 volt battery.
  Continuity - The condition of being continuous.
  Cross Interleave Reed-Solomon Code (CIRC) - A combination of codes and interleaved data that make it possible to detect and correct errors in a compact disc system.
  Crossover Frequencies - The frequencies at which an active or passive crossover network divides audio signals, expressed in Hertz (Hz).
  Crossover Network - A unit that divides the audio spectrum into two or more frequency bands. The two types are active and passive.
  Crossover Point - Same as crossover frequency.
  Crosstalk (Channel Separation) - The amount of interference on one stereo channel caused by the leaking of the other stereo channel. The higher the rating in decibels (dB), the better the Channel Separation.
  Current - The rate of flow of electricity, measured in amperes (amps).
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Mobile Electronics Basics:
Diodes
Glossary of Terms and Definitions
Ohm's Law
Recommended Books & DVD's
Recommended Wire Sizes
Relays
Resistors
Tools and Equipment


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