Word: audio
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...thick slab of marble! The exact opposite of shock mounting, this insures that a chance whack by anything short of a sledge hammer will leave his needle firmly and serenely in the groove. "Firmly" isn't the right word here, though, since Bruce uses the new Audio Dynamics ADC-1 cartridge and tracks it (in his home-made professional arm) at about 3/4 of a gram! The ADC-1 is one indication of how seriously Humphrey is concerned with the problem of record-wear and surface-noise. His care for records doesn't end with use of the world...
...Brinkley's Journal got off to an unpromising start in its first program, presenting a splendid rendition of America the Beautiful on the audio while the video showed pictures of trash heaps, automobile graveyards, dump trucks dumping, and beer cans floating in the shining sea. Only a freshman in a high school journalism class would have considered it a towering achievement. But after that he settled down to some remarkable short studies, in which the camera work was vivid and the scripts (which he writes himself) tartly acute...
...magnet in the body. Either way (one is called "moving magnet", the other "moving coil" for obcious reasons), when the needle does its mazurka in the groove the stylus arms follows, and the groove vibrations are "transduced" into electrical signals in the coils. Connect the coils by means of audio cable to the amplifier, and we have a stereo cartridge...
...literature of a couple of cartridges available at the moment both have easily understood discussions in their promotional material of some of these incredibly complicated problems that beset the cartridge maker. GRADO'S literature (describing their particularly sweet sounding new Laboratory cartridge--$49.50) is very interesting, as is AUDIO DYNAMICS' (explaining the starting ADC-1--also $49.50--which is the first cartridge to successfully track under 1 gram and still give exceptional sound...
...inordinately high record wear. Look for high compliance and low mean inordinately high record wear. Look for high compliance and low moving mass; study of specs sheets sheets will teach you what "high" and "low" are. But above all rely on your ears, as guided by those of your audio dealer, who, after all, does a lot of listening...