09-Feb-2016, 14:47
(08-Feb-2016, 12:21)GuillaumeB Wrote:(08-Feb-2016, 12:06)yabaVR Wrote: I suspect they do it with some additional filter in the software that weakens the D200/D120 and/or with the inner surface of the D250 being painted black. I suspect this black paint being a shielding lacquer that protects the circuitboard to some amount from the bad chrome-nickel-el.mag.-effects of the whole surface.
Isn't it the case that the 250 chassis is different from the 200 and provides better thermal management by virtue of its physical properties, being machined from solid aluminium and providing better heat sinking?
Guillaume
I recall discussing this with Devialets chief engineer Mathieu Pernod at a dealer event. This was a little after the launch of the then D170. Matthieu advised that the D170 had essentially the same electronics as the D240, but was restricted due to thermal constrains. The D240, with the "original" design case based on the D-Premier offers better transient thermal cooling.
So the current D200 has software restrictions on the power supply to keep the thermal issues in check, whereas the D250 is limited by the power supply itself.
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