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In 2022, Western Electric began production of the 91E amplifier system, employing the 300B tube in a single ended configuration. The amplifier is a high-end model designed for audiophiles, costing $15,000 or more. It can produce from 14 to 20 watts (at 8 ohms) per channel. This is considerably more than the standard 10w per channel from a ...
The Model 400 was a console version of the 300, which was intended for the home and club market and included a self-contained speaker system. The 400A (1970) used the same internals as the 300B, adding a 50 watt amplifier. The 468 (1972) was based on the 368. [10] The 600 series combined the sounds of the Electra-piano and the Rock-Si-Chord.
In electronics, the 300B is a directly-heated power triode vacuum tube with a four-pin base, introduced in 1938 by Western Electric to amplify telephone signals. It measures 6.4 in (16 cm) high and 2.4 in (6.1 cm) wide, and the anode can dissipate 40 watts thermal.
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.
A SET tube audio amplifier. A single-ended triode (SET) is a vacuum tube electronic amplifier that uses a single triode to produce an output, in contrast to a push-pull amplifier which uses a pair of devices with antiphase inputs to generate an output with the wanted signals added and the distortion components subtracted.
Krell Industries Inc., founded by its C.E.O. and chief designer Dan D'Agostino, is one of America's largest manufacturers of high-end audio systems. While most of their acclaim has come from their power amplifiers and CD players (their flagship model being the Master Reference Amplifier with a price of roughly $100,000), they also make preamplifiers, loudspeakers, subwoofers, and Super Audio ...