Home » Car Audio Glossary Contact Us |  My Account |  Register   
Search for   in  
Advanced Search
  Car Security

  Audio & Multimedia

  Power Inverters

  Parking Sensors

  Reversing Cameras

  HID Conversions

  Car Styling

  Satellite Navigation

  Turbo Timers

  TPMS Systems

  Hands Free Kits

  Camping Accessories

  Motorcycle Products

  Truck Products

  DVD Video

  Misc Items


  Special Offers
New Products
Waterproof Universal bike bicycle motorbike motorcycle scooter 5" Sat Nav Case
Waterproof Universal bike bicycle motorbike motorcycle scooter 5" Sat Nav Case

[More new products]

We accept PayPal

Follow InCarStuff on Twitter

Car Audio Glossary Car Audio Glossary

Don't know your RDS from your RMS, confused by Peak Power or got yourself in a Wow & Flutter over all these terms then this guide is for you!

AF: Alternate frequency. Allows a receiver to re-tune to a different frequency that provides the same station, when the first signal becomes too weak (e.g. when moving out of range).

Attenuate: To reduce volume through the reduction in amplitude and intensity of a signal. The opposite of amplification.

Automatic Volume Control: Automatically adjusts the volume depending on the cars speed.

Autostore: Automatically scans the airwaves and stores the strongest signals in the station presets.

Azimuth: The angle of contact between a tape head and the cassette tape. The more similar this is between record and playback the better the reproduction.

Band-pass filter: A device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range. Used as a way of filtering out certain frequencies, often used for the mid range in a 3 way component system.

Bass: The lower end of the sound spectrum (usually under 150 Hz).

Bass Reflex: A type of loudspeaker enclosure that utilises the sound from the rear side of the speaker to increase the efficiency of the system at low frequencies as compared to a typical closed box loudspeaker.

Bridgeable: The ability to combine the stereo outputs of an amplifier into one mono output with double the output power.

Coaxial: Speakers with more than one drive unit built in, eg. a woofer combined with a tweeter. Gives better frequency response and clarity that a single cone.

Component Speakers: A set of speakers with seperate bass, mid range and high end speakers.

Continuous Power: See RMS.

Crossover: A device that filters out certain frequencies so they can be fed to particular types of speakers eg. so that only high frequencies are fed into a tweeter. A passive crossover filters signals after they have been amplified and an active crossover filters signals before amplification.

Crosstalk: The level of stereo separation between the left and right channels of a stereo.

CT: Clock time and date set from an RDS signal.

DAC: Digital to Analog converter, a device for converting a digital code (eg. data on a CD) to an analog signal.

DNR: Dynamic Noise Reduction, a method of reducing background hiss on cassette tapes.

Dual Cone: A single speaker that has two cones the smaller of which produces the higher frequencies. Not as effective as coaxial speakers.

DIN: The standard size of most car stereo units.

Double DIN: The size of most double height car stereo units, often seen on Japanses import vehicles.

DSP: Digital Sound Processing, used for creating simulated acoustic environments such as rock, pop, theatre etc.

EON: Enhanced Other Networks, allows the radio to interrupt what you are listening to with news bulletins from local stations.

Face Off: A security system that allows the front panel of a car stereo to be removed so it is less attractive to thieves.

Fader: Controls the amount of sound coming from the front or rear speakers in the same way as a balance control affects the left/right speakers.

Free Air: A subwoofer speaker which is able to work efficiently by not being enclosed in a box.

Full Logic Control: A cassette deck with electronic touch control instead of mechanical buttons.

Full range: A speaker designed to give a wide frequency response.

Gain: The degree of signal amplification provided by an amplifier. Expressed in decibels (dB).

Hertz: The frequency of a sound, usualy given as a range that an amplifier or speaker can reproduce.

High Pass Filter: Filters out low frequencies, usually used with tweeters.

Infinite Baffle: See Free Air.

Intro Scan: Plays the first few seconds of a track on CD or tape.

Local/DX: Two levels of sensitivity for scanning for radio stations, local and distant.

Loudness: Boosts low frequencies at low volumes.

Low Pass Filter: Filters out high frequencies, usually used with a subwoofer.

Mid Range: A speaker designed for producing frequencies in the mid range of the frequency range.

MOSFET: A type of transistor used in amplifiers for superior sound reproduction.

MSS: Music Search System, see Track Search.

Ohm: A measure of a speakers resistance. If a signal is sent into two speakers, one of which is rated at 4 ohms and the other at 8 ohms twice as much current will flow through the 4 ohm speaker as the 8 ohm speaker, requiring twice as much power.

Over sampling: A method of achieving higher quality Digital to Analogue conversion.

Peak Power: Often used by manufacturers in an attempt to look better in print. Peak power has no bearing on the actual performance of a product and usually works out to be approximately twice the continuous power (RMS).

PLL: Phase Locked Loop, keeps FM signals locked on to a station.

Port: The hole in a Bass Reflex speaker enclosure to give extra bass.

Pre-Amp: Boosts an audio signal before it gets to the main power amplifier.

Pre-Amp Output: An output from a head unit that can be connected straight to an external power amplifier.

Presets: The number of stations that can be programmed into a radio for instant recall.

PTY: The type of program that a radio station transmits eg. popular music, allows the radio to automatically tune into a station broadcasting a particular type of music.

RDS: Radio Data System, allows the radio station to send extra information to the radio eg. the station name, current record playing etc.

RMS: Root Mean Square, an accurate way to measure the output of an amplifier. The higher the figure the more powerful the amplifier is.

Signal To Noise Ratio: The ratio between the music you hear and the noise that the system produces, the higher the signal the better, anything above 70db is acceptable.

SPL: Sound Pressure Level, the amount of volume produced in decibels (dB).

Subwoofer: A speaker designed for very low frequencies.

TA: Traffic Announcement, switches the radio to a local station when there are traffix announcements.

Track Search: Allows you to rewind or forward to the next track on a tape.

Tweeter: A small speaker designed for high frequencies.

Wow & Flutter: The accuracy and stability of the speed of a cassette player, the lower the figure the better.

THD: Total Harmonic Distortion, the difference in quality between the output of a stereo and the original recording.


Copyright 2006


Shopping Basket
Your shopping basket is empty!
HID Xenon Headlight Conversion Kits
Featured Product
5 out of 5 Stars!
About us
Ordering Information
Technical Support
Terms & Conditions
Privacy Policy
Cookie Usage
Site Security
My Account
Order status
Newsletter Preferences

Contact Us
Email Us
Technical Support
Car Security Tips
Car Alarm Glossary
Car Alarm Comparison
Car Parking Sensors
Power Inverters
Multimedia Glossary
Audio Glossary
Follow us on Twitter
Link To Us
RSS Feed
All Products
Site Map
PDF Pricelist

Visit Living Leisure for Motorhome, Caravan, RV and Camping Accessories.

Falcon Security | Sniper Automotive | DE Multimedia | Hertz Car Audio | Juice Car Audio
In Phase Car Audio | Ballistic Car Audio | Fuel Car Audio | Parrot Hands Free Kits | Frontier Car Accessories | EasyFind Satellite TV

Copyright © 1999-2013  All Rights Reserved.  Errors & Omissions Excepted. All trademarks acknowledged.