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自从1976年日本松下、索尼、TEAC三家公司联合发明了大盒式录音机以后,近几年来的进展远不如当时人们所预计的那么乐观。究其原因,与其说是技术上的倒不如说是商业上的。大家知道,大盒式录音机一出现,就以它优良的技术性能和自动化、程控化的操作性能引起了人们的重视。但开始时全部是台式录音座,携带不便,不能在现场录音中发挥作用;又因刚刚问世,不仅价格高,而且市场上买不到大盒式音乐带,所以在录音座的主要市场——作为家庭音乐中心的组成部分,并不太受欢迎,因此,几年来发展不快,销路不畅。鉴于上述情况,为适应社会各方面的需求,索尼公司于1978年又研制了一种便携式大盒式立体声录音机(外观如题头照片)。
Since 1976, Japan’s Matsushita, Sony, TEAC three companies jointly invented the cassette recorder, the progress in recent years is far less optimistic than was expected. The reason is not so much technical rather than commercial. We all know that when a large cassette recorder appeared, it attracted people’s attention with its excellent technical performance and automation, and its programmed operation performance. However, the beginning of all desktop recording base, carrying inconvenience, can not play a role in the live recording; also because of the advent of not only the high price, and the market can not buy a large cassette music band, so the recording deck of the main market - As an integral part of the family music center, it is not very popular and, as a result, its development has been sluggish and its sales have been sluggish in recent years. In view of the above, in order to meet the needs of all sectors of society, Sony in 1978 developed a portable large-cassette stereo recorder (the appearance of such as head photos).