Posted by Wayne Parham [ 192.35.232.241 ] on July 18, 2006 at 23:14:26:
In Reply to: Hl10c Heatsink data posted by Leland Crooks on July 18, 2006 at 19:19:33:
Thanks for taking the time to post this. It looks like you used the published value of Re rather than measuring it. I realize that you measured resonance values and all the other things that it takes to do T/S calculations, but did you also measure DC resistance of the voice coil at any time? The AC impedance value would be close at some frequencies other than resonance, an octave above or below for example.
I'm just curious really, to know if you have temperature or resistance measurements for the HL10. But the real test is how effective the heat exchanger is at reducing thermal stress, and ultimately increasing driver reliability. In that regard, the doubling of power limits is a pretty good indication.
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