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1. Tape Equalization:-In tape decks, the best equalization response must be selected according to the type of tape — normal, chrome, or high-bias. In many decks, automatic sensors perform this function, in others, a switch must be set.
Submitted on Monday, April 27, 2009 5:58:48 PM

2. Terminal Cup:
A plastic cabinet part that contains the terminal connectors that permits the wire from the amplifier to be connected to the speaker. Sometimes these parts contain the Crossover and protection circuitry as well.
Submitted on Saturday, June 28, 2008 5:58:48 PM

3. THD
Definition:Total harmonic distortion is a measure of the how much a given audio device may distort a signal through the introduction of added harmonics or overtones. These figures are usually given as percentages. THD figures below approximately 1% are inaudible to most people. However, distortion is a cumulative phenomenon, so that if a receiver, equalizer, signal processor, crossover, and amplifier are all rated at "no greater than 1%THD", together, they could produce 5%THD, which may well be noticeable in the perceived sound.
Submitted on Friday, January 23, 2009 5:58:48 PM

4. THD-is total harmonic distortion, or how much a device distorts a signal. These figures are usually given as percentages. THD figures below approximately 0.1% are inaudible, but like bad karma distortion adds up.
Submitted on Thursday, April 23, 2009 5:58:48 PM

5. Theile/Small Parameters:-The work of Neville Theile and Richard Small is considered to have the most impact on the loudspeaker design field. They discovered a method that could predict the frequency response performance, and other characteristics of a loudspeaker system, based on its physical parameters. For details on these parameters see Understanding Theile/Small Parameters.
Submitted on Friday, December 12, 2008 5:58:48 PM

6. Thiele/Small parameters:The numbers that specify the behavior of drivers, as defined and analyzed by two engineers, Neville Thiele and Richard Small.
Submitted on Thursday, December 30, 2010 5:58:48 PM

7. Three-way (car speaker):Three-way or triaxial speakers take the separate woofer and tweeter from a two-way design and add a dedicated midrange Driver for enhanced warmth and texture. The extra high-frequency energy also boosts overall Sensitivity.
Submitted on Saturday, December 20, 2008 5:58:48 PM

8. THX:-Refers to a series of specifications for surround sound systems. Professional THX is used in commercial movie theaters. Home THX specifications are not published and manufacturers must sign non-disclosure waivers before submitting their products for THX certification. Manufacturers that receive certification for their products must pay a royalty on units sold.
Submitted on Saturday, October 23, 2010 5:58:48 PM

9. THX:-THX is a set of standards, components and systems are designed to meet in order to comply with the requirements of high quality film sound reproduction. First developed for Lucasfilm by Tomlinson Holmann, with input from George Lucas himself, THX was intended to define a minimum standard of equipment and quality control that theaters would need to meet in order to become 'certified' as THX approved. The idea was to raise the overall quality and consistency of audio in movie theaters. Lucasfilm had the clout to make such a certification mean enough from a marketing point of view, that theaters wanted to support it and be certified. Subsequently, it has been adopted as a standard in hi-fi equipment with many manufacturers licensing and producing certified THX components for home theater systems.
Submitted on Monday, August 02, 2010 5:58:48 PM

10. Timbral
Refers to the overall frequency balance of a system. In a perfect world, all systems would have complete tonal neutrality. With current technology, this ideal is approached but not met. Listening to many equally "good" speakers will reveal that some sound warmer than others, some sound brighter etc. In a surround sound system it is important that all speakers have a close timbral match for the highest degree of sonic realism.
Submitted on Tuesday, October 05, 2010 5:58:48 PM

11. Timbre:-The combination of harmonic frequencies in voices or instruments which give them their characteristic quality. Synonyms
Submitted on Saturday, August 08, 2009 5:58:48 PM

12. Timbre
Definition:The quality of a sound that distinguishes it from other sounds of the same pitch and volume. The distinctive tone of an instrument or a singing voice.
Submitted on Monday, November 03, 2008 5:58:48 PM

13. TOC (Table Of Contents):
The digital subcode information that identifies a disc, indicates the number of tracks, the starting and ending points of these tracks, and the total running time of the disc. When included, CD Text information is stored in the TOC.
Submitted on Friday, June 26, 2009 5:58:48 PM

14. Toroidal Coil:-An inductor or transformer whose core consists of a concentrically wound ribbon of magnetic material. Also used to filter noise on a DC supply line.
Submitted on Monday, July 12, 2010 5:58:48 PM

15. Total harmonic distortion (THD):Refers to a device adding harmonics that were not in the original signal. For example
Submitted on Saturday, March 27, 2010 5:58:48 PM

16. Trace
The path of conductive material, usually copper, that conveys voltage or current from one point to another on a printed circuit board. Traces add a slight resistance to the circuit.
Submitted on Wednesday, May 05, 2010 5:58:48 PM

17. Transducer:-A device that converts one form of energy to another. Playback transducers are the phono cartridge, which changes mechanical vibrations into electrical energy, and the loudspeakers, which change it back, from electrical energy coming from the amp to mechanical movement of the diaphragm, causing audible pressure changes in the air.
Submitted on Tuesday, May 20, 2008 5:58:48 PM

18. Transducer:Synonym for Driver, speaker, or any electrical device that converts one type of energy into another. A microphone is a transducer that converts sound to electrical signals. A speaker reverses the process.
Submitted on Saturday, April 17, 2010 5:58:48 PM

19. Transformer
Definition:An electrical inductive device that can be used to provide circuitry isolation, signal coupling, impedance matching, or voltage step-up.
Submitted on Saturday, November 13, 2010 5:58:48 PM

20. Transient response-The ability of a component to respond quickly and accurately to transients. Transient response affects reproduction of the attack and decay characteristics of a sound.
Submitted on Friday, May 16, 2008 5:58:48 PM

21. Transients:-Instantaneous changes in dynamics, producing steep wave fronts.
Submitted on Friday, October 01, 2010 5:58:48 PM

22. Transients
Definition:A non-repeating sound (such as percussion in music) or an abrupt change of voltage. How a speaker handles transients is a good indicator of its performance.
Submitted on Friday, January 22, 2010 5:58:48 PM

23. Transistor:An active (commonly three terminal) solid-state device in which a larger output current is obtained by small changes in the input current. Transistors comprise the greater number of active elements within ic's and microprocessors
Submitted on Sunday, October 10, 2010 5:58:48 PM

24. Transmission Line:
Also referred to as a T-line. A type of bass cabinet in which the back wave follows a relatively long, usually damped path before being ported to the outside. T-lines are usually rather large and costly cabinets to manufacture. Opinions vary widely over the "best" type of bass cabinet, but much has to do with how well a given design, such as a transmission line is implemented.
Submitted on Sunday, February 22, 2009 5:58:48 PM

25. Transparency:
Listening term. An analog that can be best "pictured" in photography. The more "transparent" the sound, the clearer the auditory picture.
Submitted on Tuesday, August 25, 2009 5:58:48 PM

26. Travel Presets or Tuning Memory:-With this feature the receiver automatically loads it's presets with the strongest available signals. It makes finding stations easier when driving through unfamiliar territory. It also makes loading presets easier when the receiver is first installed, or any time the battery is discharged, or gets disconnected, which often cancels the tuner's preset memory.
Submitted on Wednesday, October 28, 2009 5:58:48 PM

27. Tremolo:-1. A fluctuation of amplitude applied to a sound of constant frequency. Often incorrectly used, as in 'tremolo arm' on a guitar which actually produces vibrato. 2. For stringed instruments such as a mandolin, fast up and down strokes of equal strength of the plectrum or index finger on the strings.
Submitted on Sunday, August 31, 2008 5:58:48 PM

28. Tri-wiring
Definition:The use of three pairs of speaker wire from the same amplifier to separate bass, midrange and treble inputs on the speakers.
Submitted on Tuesday, August 24, 2010 5:58:48 PM

29. Trust your ears, not the specs:
Specs can tell you how a speaker will sound, but they can't tell you what a speaker sounds like. Trust your ears. And if you don't know what to listen for, trust someone with listening experience, like the professional in the showroom.
Submitted on Saturday, July 19, 2008 5:58:48 PM

30. Tube (enclosure)-A type of woofer enclosure consisting of a long tube with a woofer at one end, and a port or Passive Radiator at the other. A good low-end reproducer, this design is very compact and generally used in car stereo.
Submitted on Tuesday, August 04, 2009 5:58:48 PM

31. Tunable (port)
A port tube that can be adjusted in length to provide for optimizing, experimentally, the measured low-end response when a speaker enclosure has not been designed for the woofer Driver installed in it.
Submitted on Sunday, April 19, 2009 5:58:48 PM

32. Tuned (port)
Definition:A port opening, radiator, or tube whose size is precisely specified by the overall design of the enclosure and woofer.
Submitted on Thursday, September 04, 2008 5:58:48 PM

33. Tuning Frequency:
The helmholtz resonant frequency of a box. Also refers to the resonant frequency of other types of systems.
Submitted on Wednesday, March 10, 2010 5:58:48 PM

34. Tweeter:Highs are reproduced by the tweeter, a small speaker mounted inside the woofer cones of multidriver 2 and 3 way car speakers and separately in other systems. Cone tweeters are efficient and the most economical. Dome tweeters - the type found in most home speakers - have a wider angle of dispersion and more accurate. Some domes are made of metals like neodymium or titanium that yield extended high frequency response. Others are made of Mylar, or a fine cloth like silk and produce a smoother if not as extended response. Some are made from a combination of materials.
Submitted on Sunday, May 10, 2009 5:58:48 PM

35. Tweeter:
A speaker, (driver), used to reproduce the higher range of frequencies. To form a full-range system, a tweeter needs to be combined with a woofer, (2-way system), or a woofer and midrange, (3-way system).
Submitted on Sunday, March 15, 2009 5:58:48 PM

36. Tweeter
A speaker designed to reproduce only the high frequencies such as 3500 Hz and above. (e.g., A tweeter can be damaged when driven by low frequencies so you should always use the proper crossover.)
Submitted on Saturday, March 06, 2010 5:58:48 PM

37. Tweeter-A speaker designed to reproduce only the high frequencies such as 3500 Hz and above. (e.g., A tweeter can be damaged when driven by low frequencies so you should always use the proper crossover.)
Submitted on Saturday, January 31, 2009 5:58:48 PM

38. Two Ohm Stable
Definition:An X-ohm stable amplifier is an amp which is able to continuously power a load of X ohms per channel without encountering difficulties such as overheating or distrotion. Almost all car amplifiers are at least four ohm stable. Some are two ohm stable, which means that you could run a pair of four ohm speakers in parallel, or a single 2 ohm driver on each channel of the amplifier, and each channel of the amp would "see" two ohms. Some amps are referred to as high-current, which is a buzzword which indicates that the amp is able to deliver very large (relatively) amounts of current, which usually means that it is stable at very low load impedances, such as 1/4 or 1/2 of an ohm. Note that the minimum load rating (such as "two ohm stable") is a stereo (per channel) rating. In bridged mode, the total stability is the sum of the individual channels' stability
Submitted on Saturday, February 14, 2009 5:58:48 PM

39. Two-way (car speaker)
Definition:Music's high frequencies are reproduced accurately by two-way, or coaxial, designs. These speakers use a separate tweeter to deliver high frequency reproduction that surpasses that of dual-cone "extended range" models with whizzer cones. This tweeter, usually a cone or a Dome, is either on a post or bridge inside the woofer.
Submitted on Sunday, November 01, 2009 5:58:48 PM

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