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From:
To:
Date:
Fri, 28 Jul 2000 11:09:27 -0500 (CDT)
Subject:
Re: [idm] Turntables
Msg-Id:
<Pine.LNX.4.10.10007281009340.25136-100000@utopia.booyaka.com>
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<B5A62285.9EC6%shephrd@earthlink.net>
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idm.0007.gz
Somebody at turntablelab.com wrote:
quoted 6 lines ------------------------------------------------------------> ------------------------------------------------------------ > Why you should buy a 1200 before anything else. > ------------------------------------------------------------ > Direct Drive vs. Belt Drive. The 1200 runs on a magnetically > powered engine. Basically, the engine is driven by magnets. > Since it is a non-mechanical drive, this is the feature
note: i realize this was not written by an IDM lister. but as a mechanical engineer, i have to ask wtf? first of all, motors are powered by electrical energy, not magnets. they use electromagnetic forces to generate mechanical motion. they are indeed mechanical!
quoted 7 lines In many cases, on inferior turntables, the pitch control> In many cases, on inferior turntables, the pitch control > will loose it's accuracy quite easily. For example, you put > the lever at +2, but it plays at +3. In some case, I have > even seen inferior turntables play the "0" position > inaccurately. This is very critical for beat matching. In > order to match beats you need to have precise speed > functions.
because the range and zero of the pitch adjust slider are adjusted by potentiometers, even a 1200 can lose accuracy. fortunately it's possible to open it up and tweak the settings (one has to remove a lot of screws to get at the pot that adjusts zero, but it's certainly better than having 2 zeros!)
quoted 2 lines 5) THE SOUND Unless you're a super-audiophile, the 1200 is> 5) THE SOUND Unless you're a super-audiophile, the 1200 is > as good as it gets.
i would tend to argue this. since the motor shaft in a 1200 is directly connected to the platter, motor vibrations are picked up by the cartridge as noise. belt drive units generally sound better because the belt dampens some of those vibrations. another thing to keep in mind is that 1200s have no auto-return feature. so if you tend to put on ambient records late at night and pass out while they're playing, the needle will sit in the run-out groove all night long. not that i've ever done that :) phase np: visor (tom) --------------------------------------------------------------------- To unsubscribe, e-mail: idm-unsubscribe@hyperreal.org For additional commands, e-mail: idm-help@hyperreal.org