SHARP SD-G7 (1990) | Active Servo Technology & DAT

 

The SD-G7 is a unique mini Hi-Fi component system from Sharp introduced in 1991, a next generation combo. Compact size component with both DAT and CD and by utilizing Sharp's original small DAT mechanism, LS, and high-density double-sided mounting technology for a four-layer board, the unit is as small as 215mm wide and 304mm high. This is a two-piece system with one components housing the DAT/CD while the other the amplifier/tuner/cassette unit, allowing for free layout. Place it on a bookshelf or bedside table and enjoy digital sound the way you want. Easy and clear recording from CD to DAT/cassette with 3 modes of direct editing. Equipped with a direct dubbing function that allows one-touch recording from CD to DAT, CD to cassette, and DAT to cassette tape. The combo has a variety of linked play possibilities, such as a "Sync Start ID" function that allows you to match the track numbers on the CD and the DAT, and automatically writes an end ID when CD recording is complete. There is also an auto restart function that, when recording from a DAT to a cassette tape, will return to the beginning of the track that was being played at the time and start editing again when the cassette tape switches from side A to side B. DAT's functionality is also one of its major features. For example, when digitally recording from satellite broadcasting, the auto start ID function detects non-signal sections and automatically writes track numbers, making it easy to select tracks after recording. There are also repeat check functions that allow you to add or change the position of the start ID after recording, renumbering functions that automatically rearrange track numbers even if you start recording again from the middle of a recorded tape, and a narration function that allows you to add a narration to a track after recording from satellite broadcasting. 

Also incorporated is the Active servo technology that produces powerful bass from small speakers. Sharp has jointly developed Active Servo Technology with Yamaha Corporation, which produces richer, deep bass sounds from a small speaker. The combination of the Helmholtz resonator principle and negative impedance drive circuit technology has made it possible to reproduce powerful deep bass sounds. The "air woofer" uses the air in the port on the front of the speaker as a diaphragm, so there is no limit to amplitude like with conventional speakers, and the amplitude is not reduced, so even though it is a small speaker, it has the same sound quality as a large speaker. To fully utilize the benefits of Active Servo Technology, the woofer uses a high-stroke, highly rigid mica-reinforced olefin diaphragm. The tweeter is a 2.5cm dome type that reproduces detailed high frequencies clearly. It reproduces the high-quality sound of DAT and CD in a realistic manner. A high-performance digital amplifier that accepts optical digital input and also has an electronic equalizer. Equipped with optical digital input and coaxial type digital input terminals, it is compatible with digital sources that are indispensable for AV life, as well as satellite broadcasting A mode (32KHz)/B mode (48KHz). The maximum practical output is 130W (65W+65W). It also has a built-in Dynamic X-BASS circuit that enhances the dynamism of the bass with high power. The included multi-function remote control allows you to control the power ON/OFF, volume, graphic equalizer, surround, dynamic X-BASS, direct selection, and most other functions including DAT, CD, tuner, amplifier, and cassette. 

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