Johnson Amplification

	Johnson Amplification Johnson Amplification was a subsidiary of DigiTech by the Harman Music Group, which manufactured and sold amplifiers using a design by John Johnson. Johnson amplifiers used tube integrated modeling technology, a method of emulating the sounds of several different types of classic and modern amplifier with a high degree of accuracy and ease of operation. The design incorporated the use of tubes as well as solid state circuitry. Among the popular products Johnson offered were the JM-150 combo amp, JM-250 Amplifier head and cabinets, the J-12 foot controller, the J-Station, and the JT-50 practice amp. Johnson ceased operation in July 2002 and is no longer manufacturing these products, however their amplifiers remain quite popular in the after-market. References {{reflist Guitar amplifier manufacturers Audio equipment manufacturers of the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Harman Music Group Harman International Industries, commonly known as Harman (stylized in all-uppercase as HARMAN), is an American audio electronics company. Since 2017, the company has been an independent subsidiary of Samsung Electronics. Headquartered in Stamford, Connecticut, US, Harman maintains major operations in the Americas, Europe and Asia. Harman markets its products under various brands, including AKG, AMX, Arcam, Bang & Olufsen Automotive, Becker, BSS Audio, Crown, dbx, DOD Electronics, DigiTech, Harman Kardon, Infinity, JBL, Lexicon, Mark Levinson, Martin, Revel, Soundcraft and Studer. Early history Sidney Harman and Bernard Kardon founded the predecessor to Harman International, Harman Kardon, in 1953. Both Harman and Kardon were engineers by training and had worked at the Bogen Company, which was a manufacturer of public address systems. They developed high-fidelity audio together. Harman bought out his partner in 1956 and then expanded Harman Kardon into an audio powerho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Amplifier An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It may increase the power significantly, or its main effect may be to boost the voltage or current (power, voltage or current amplifier). It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude of a signal applied to its input terminals, producing a greater amplitude signal at its output. The ratio of output to input voltage, current, or power is termed gain (voltage, current, or power gain). An amplifier, by definition has gain greater than unity (if the gain is less than unity, the device is an attenuator). An amplifier can either be a separate piece of equipment or an electrical circuit contained within another device. Amplification is fundamental to modern electronics, and amplifiers are widely used in almost all electronic equipment. Amplifiers can be categorize ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Guitar Amplifier Manufacturers The guitar is a fretted musical instrument that typically has six strings. It is usually held flat against the player's body and played by strumming or plucking the strings with the dominant hand, while simultaneously pressing selected strings against frets with the fingers of the opposite hand. A plectrum or individual finger picks may also be used to strike the strings. The sound of the guitar is projected either acoustically, by means of a resonant chamber on the instrument, or amplified by an electronic pickup and an amplifier. The guitar is classified as a chordophone – meaning the sound is produced by a vibrating string stretched between two fixed points. Historically, a guitar was constructed from wood with its strings made of catgut. Steel guitar strings were introduced near the end of the nineteenth century in the United States; nylon strings came in the 1940s. The guitar's ancestors include the gittern, the vihuela, the four- course Renaissance guitar, and the fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]