Sony CDP 990 CD player. Fully revitalized.
The company was established by Masaru Ibuka and Akio Morita in Tokyo in 1946 as Tokyo Tsushin Kenkyu-jo Research Institute, initialy providing service. A year later, it was transformed into a company called Tokyo Tsushin Kogyo Kabushiki Kaisha (abbreviated Totsuko), whose main purpose was the production of telecommunications equipment and voltmeters. The 50’s turned out to be crucial for the company. At that time, a tape recorder and transistor radio were created, and in 1955 a decision was made to use the SONY logo on Totsuko products. The name came from the Latin word “sonus” – sound and “sonny boy” – used in the US to describe a little boy. The 1960s were a period of rapid development and international expansion for the company. Then also TA-1120 was created, which is the world’s first stereo receiver based on silicon transistors. In 1979, the iconic SONY product appeared on the market, a portable “walkman” cassette player. In the following decades, the company also introduced and promoted trademarks such as discman, trinitron and playstation.
The company’s rapid growth has boosted sales and reputation. In 1960, the decision was made to open the first foreign branches in the USA and Switzerland, making Sony become a true international corporation.
The Sony CDP 990 is a player that provides high-quality music reproduction, which is typical of Sony audio equipment.
The enclosure has been completely revitalized, the buttons are in perfect condition. The top cover has been cleaned and painted using the automotive wet painting technique. Black varnish was used and protected with a clear matte varnish. The new side boards made of exotic sapele wood give the player an elegant look. The entire laser subassembly (the so-called block) has been replaced with a new one.
The device has been fully reviewed and serviced.
– record type: CD
– frequency response: 2Hz do 20kHz
– dynamic range – more than 100 dB
– signal-to-noise ratio – over 112dB
– channel separation – more than 100 dB
– total harmonic distortion: 0.003%
– load impedance – over 10 kOhm
– line output: 2V
– output level 18dBm
– digital optical output – wavelength 660 nm
– dimensions: 47 cm x 33 cm x 11.5 cm (width, depth, height)
– weight: 7 kg
– Japanese production from 1990/92