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This Dayton PC83-8 is another Full-Range driver that I’m considering for the Evolve clone. At $12.98 each, she cost slightly more than the HiVi C3N-III ($9.49 each). According to her specs, she’s supposed to be better. Her cone is made of woven glass fiber and she is blessed with a copper cap on the pole piece. This is reputed to improve the high frequency response. Manufacturer’s Specs My DATS measurements are close to Dayton’s. My Qts is 0.73 whereas Dayton’s is at 0.63. I expect my Qts to be closer to Dayton’s once my PC83-8 is well broken-in. Sealed Box=2 liters | F3=97Hz | Q=0.938 I simulated the PC83-8 in a 2 liters sealed box and found the peak at 170Hz to be much lower than the HiVi C3N-III. Closed box Q (Qtc) is still a bit high at 0.938 but I don’t anticipate any issues. Once I cross the column at 200Hz~300Hz, the high Qtc won’t make any difference. Ported Box=6 liters | Fb=55Hz | Q=0.80
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August 30, 2023Drivers Thiele & Small, HIFI DRIVERS
