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I think you're looking at it the wrong way - firstly the pot(slider) does degrade just like previous ones, the only differences with the M5G is that it's user replaceable and that it does not have the middle click (which was a source of further wear and you got a dead zone in terms of pitch either side of it).
So what I'm saying is the pitch slider is not the thing that was upgraded, it's the way the deck uses the pitch slider.
To simplify, the older 1200's just sent the voltage through the pot and the motor speed was a direct result of the level of resistance of the pot.
In the m5g, the voltage is sent by solid state relay, using the resistive value from the pot as it's reference for how much voltage to send to the motor.
The "improvement" comes from not having to rely on resistors/caps/(etc) (which all inherently have error margins) to make the change in motor voltage, rather a set value from from a digitally scalable relay. It's also not as simple as thinking what is the bit depth - you're not converting a signal as such, just using a resistive value as a reference to send more or less current.
Previous
Mains Voltage
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[transformer]
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[pot]
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[motor]
M5G
Mains voltage
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[transformer]
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[SS Relay]<=====>[pot]
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[motor]
I'm not saying that pot degradation is any better - just that speed of the motor is controlled by *techincally* more accurate means.
Having said that, I'm really not sure it make any practical difference.
If you can't beatmatch and have it locked in for a couple of mins on 1200's, the M5G's aren't suddenly going to solve it.
Last edited by DJ RANN on Dec-15-2009 at 02:25
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