|
Excursion (audio)
Excursion is defined as how far the cone of a speaker linearly travels from its resting position. Lower frequency drivers or subwoofers are designed to move more air and have more excursion than those of higher frequency. If a speaker is pushed beyond its limits, overexcursion, or "bottoming out," can occur as the voice coil either slips out of the magnetic gap or hits the bottom of it. Often, large speakers such as those used in clubs and in professional audio actually allow little cone excursion and/or they have fairly stiff surrounds that do not allow them to fluctuate greatly without high power. This is because they would otherwise overdrive and have a much shorter lifetime because it doesn't take much power at very low frequencies to cause even a large and "powerful" loudspeaker to overfluctuate. Extremes The MTX Jackhammer, a 22-inch subwoofer made by MTX Audio MTX Audio is an American consumer audio company that manufactures sound equipment for applications includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subwoofer
A subwoofer (or sub) is a loudspeaker designed to reproduce low-pitched audio frequencies known as bass and sub-bass, lower in frequency than those which can be (optimally) generated by a woofer. The typical frequency range for a subwoofer is about 20–200 Hz for consumer products, below 100 Hz for professional live sound, and below 80 Hz in THX-certified systems. Subwoofers are never used alone, as they are intended to ''augment'' the low-frequency range of loudspeakers that cover the higher frequency bands. While the term "subwoofer" technically only refers to the speaker driver, in common parlance, the term often refers to a subwoofer driver mounted in a speaker enclosure (cabinet), often with a built-in amplifier. Subwoofers are made up of one or more woofers mounted in a loudspeaker enclosure—often made of wood—capable of withstanding air pressure while resisting deformation. Subwoofer enclosures come in a variety of designs, including bass reflex (wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Voice Coil
A voice coil (consisting of a former, collar, and winding) is the coil of wire attached to the apex of a loudspeaker cone. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it. The term is also used for voice coil linear motors, such as those used to move the heads inside hard disk drives, which produce a larger force and move a longer distance but work on the same principle. Operation By driving a current through the voice coil, a magnetic field is produced. This magnetic field causes the voice coil to react to the magnetic field from a permanent magnet fixed to the speaker's frame, thereby moving the cone of the speaker. By applying an audio waveform to the voice coil, the cone will reproduce the sound pressure waves, corresponding to the original input signal. Design considerations Because the moving parts of the speaker must be of low mass (to accurately reproduce high-frequency sounds without being damped too much ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Gap
A tape head is a type of transducer used in tape recorders to convert electrical signals to magnetic fluctuations and vice versa. They can also be used to read credit/ debit/ gift cards because the strip of magnetic tape on the back of a credit card stores data the same way that other magnetic tapes do. Cassettes, reel-to-reel tapes, 8-tracks, VHS tapes, and even floppy disks and early hard drive disks all use the same principle of physics to store and read back information. The medium is magnetized in a pattern. It then moves at a constant speed over an electromagnet. Since the moving tape is carrying a changing magnetic field with it, it induces a varying voltage across the head. That voltage can then be amplified and connected to speakers in the case of audio, or measured and sorted into ones and zeroes in the case of digital data. Principles of operation The electromagnetic arrangement of a tape head is generally similar for all types, though the physical desi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distortion (music)
Distortion and overdrive are forms of audio signal processing used to alter the sound of amplified electric musical instruments, usually by increasing their gain, producing a "fuzzy", "growling", or "gritty" tone. Distortion is most commonly used with the electric guitar, but may also be used with other electric instruments such as electric bass, electric piano, synthesizer and Hammond organ. Guitarists playing electric blues originally obtained an overdriven sound by turning up their vacuum tube-powered guitar amplifiers to high volumes, which caused the signal to distort. While overdriven tube amps are still used to obtain overdrive, especially in genres like blues and rockabilly, a number of other ways to produce distortion have been developed since the 1960s, such as distortion effect pedals. The growling tone of a distorted electric guitar is a key part of many genres, including blues and many rock music genres, notably hard rock, punk rock, hardcore punk, acid rock, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MTX Jackhammer
MTX Audio is an American consumer audio company that manufactures sound equipment for applications including car audio, home audio, marine audio and live sound products. They are best known for their car audio products and they specialize in subwoofers and subwoofer amplifiers. MTX Audio is a brand name owned by the Mitek Corporation. History MTX audio was called Matrecs in 1979. The MTX name came in when Loyd Ivey, then owner of his own company American Acoustic Labs, bought out the Matrecs name in 1979 and changed it to MTX under Ivey’s parent company Mitek. In 1991, MTX Audio acquired Soundcraftsmen, a defunct audio equipment manufacturer which was located in Santa Ana, California, and was called ''MTX Soundcraftsmen'' until 1999. In 1984 MTX created the first mobile audio enclosure. Today Loyd Ivey is chairman and CEO of MiTek and therefore MTX, which employs over 750 people. MiTek has 12 other companies including MTX, with plants in Ennis, Texas, Louisville, Kentucky ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MTX Audio
MTX Audio is an American consumer audio company that manufactures sound equipment for applications including car audio, home audio, marine audio and live sound products. They are best known for their car audio products and they specialize in subwoofers and subwoofer amplifiers. MTX Audio is a brand name owned by the Mitek Corporation. History MTX audio was called Matrecs in 1979. The MTX name came in when Loyd Ivey, then owner of his own company American Acoustic Labs, bought out the Matrecs name in 1979 and changed it to MTX under Ivey’s parent company Mitek. In 1991, MTX Audio acquired Soundcraftsmen, a defunct audio equipment manufacturer which was located in Santa Ana, California, and was called ''MTX Soundcraftsmen'' until 1999. In 1984 MTX created the first mobile audio enclosure. Today Loyd Ivey is chairman and CEO of MiTek and therefore MTX, which employs over 750 people. MiTek has 12 other companies including MTX, with plants in Ennis, Texas, Louisville, Ke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linear
Linearity is the property of a mathematical relationship (''function'') that can be graphically represented as a straight line. Linearity is closely related to '' proportionality''. Examples in physics include rectilinear motion, the linear relationship of voltage and current in an electrical conductor (Ohm's law), and the relationship of mass and weight. By contrast, more complicated relationships are ''nonlinear''. Generalized for functions in more than one dimension, linearity means the property of a function of being compatible with addition and scaling, also known as the superposition principle. The word linear comes from Latin ''linearis'', "pertaining to or resembling a line". In mathematics In mathematics, a linear map or linear function ''f''(''x'') is a function that satisfies the two properties: * Additivity: . * Homogeneity of degree 1: for all α. These properties are known as the superposition principle. In this definition, ''x'' is not necessarily a real ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thunder 1000000
A subwoofer (or sub) is a loudspeaker designed to reproduce low-pitched audio frequency, frequencies known as bass (sound), bass and sub-bass, lower in frequency than those which can be (optimally) generated by a woofer. The typical frequency range for a subwoofer is about 20–200 Hz for consumer products, below 100 Hz for professional live sound, and below 80 Hz in THX-certified systems. Subwoofers are never used alone, as they are intended to ''augment'' the low-frequency range of loudspeakers that cover the higher frequency bands. While the term "subwoofer" technically only refers to the speaker driver, in common parlance, the term often refers to a subwoofer driver mounted in a speaker enclosure (cabinet), often with a built-in Audio power amplifier, amplifier. Subwoofers are made up of one or more woofers mounted in a loudspeaker enclosure—often made of wood—capable of withstanding air pressure while resisting deformation. Subwoofer enclosures come in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
