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T5 retrofit conversion is a means of converting light fittings designed to use T8 format lamps, so that they can use more energy-efficient T5 lamps. [1] This is done by electronically converting the luminaires to high frequency operation.
Harman Kardon designed and produced some of the first high fidelity audio products in the 1950s. The company's first product was an FM tuner.. Early integrated receivers (with a tuner, preamplifier and power amplifier) were an attempt to create, improve and produce high fidelity performance in a single unit.
Variants were made, such as the EMIT-R (radial emit), the S-EMIT (super emit) and the L-EMIM (large emim). The IRS (Infinity Reference System) was an ultra-high-end system, selling at US$65,000 in the 1980s. It consisted of 72 EMIT tweeters, 24 EMIM midrange drivers, and twelve 12-inch polypropylene woofers in four towers.
Naming their new company Harman/Kardon Inc., [7] each invested $5,000 (equivalent to $56,940 in 2023) in capital. Harman handled sales, merchandising, and advertising, while Kardon was Chief Engineer, Designer and Production Manager. In 1954 their first product was the Festival D-1000 receiver, the world's first integrated hi-fi receiver.
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 products together.
Retrofitting is the addition of new technology or features to older systems. Retrofits can happen for a number of reasons, for example with big capital expenditures like naval vessels, military equipment or manufacturing plants, businesses or governments may retrofit in order to reduce the need to replace a system entirely.
The car accelerated from 0-60 mph in 5.1 seconds and reach a top speed of 170 mph (273 km/h). In 1990 he presented the Laguna Seca 3,5 Turbo, this time using the 3.4-litre, turbocharged M106 inline-six from the BMW 745i , tuned to 410 PS (302 kW) and reaching a top speed of 303.79 km/h (188.8 mph) in testing on the Autobahn.
In 1998, its successor the BMW M57 was introduced in the 530d model, however the BMW M51 engine continued to be used for two more years in the 525td and 525tds models. In 1999, the M47 four-cylinder turbo-diesel was introduced in the 520d model, which is the only E39 model to use a four-cylinder engine.