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All the amplifiers were housed in smart slim carryable heads and 2 x 12 or 1 x 15 combo enclosures. Many new PA speaker cabinets were designed and put into production, such as the 212 & 412 Dual Concentric, 212BL, 215BL, 412BL, 115PA Radial Horns and Bass Bin + Piezo plus the Concert Series of pro PA systems. A large range of studio and live ...
Audio stereo power amplifier made by McIntosh The internal view of a Mission Cyrus 1 Hi Fi integrated audio amplifier (1984) [1]. An audio power amplifier (or power amp) amplifies low-power electronic audio signals, such as the signal from a radio receiver or an electric guitar pickup, to a level that is high enough for driving loudspeakers or headphones.
Small high amplifier power system: 2 high amplifier power-rated mid/high frequency PA speakers with 15" woofers and a large horn-loaded tweeter; two high amplifier power-rated subwoofer cabinets with one or two 18" subwoofer cabs (front-firing, also known as "front loaded", or manifold-loaded subwoofer cabinets)
In DPD power amplifier systems, the transfer characteristics of the amplifier are modeled by sampling the output of the PA and the inverse characteristics are calculated in a DSP processor. The digital baseband signal is multiplied by the inverse of PA nonlinear transfer characteristics, up-converted to RF frequencies and is applied to the PA ...
A sound reinforcement system for a rock concert in a stadium may be very complex, including hundreds of microphones, complex live sound mixing and signal processing systems, tens of thousands of watts of amplifier power, and multiple loudspeaker arrays, all overseen by a team of audio engineers and technicians.
Nakamichi licensed "Stasis" technology from powerhouse amplifier manufacturer Threshold (a class-A amplifier circuit by Nelson Pass, then a designer at Threshold, now at Pass Labs). This circuit was used in a line of expensive Nakamichi PA series of power-amplifiers, such as the PA-5 and PA-7, as well as its SR and TA series of receivers.