AmpsLab would like to thank Kevin Huey for donating #2 units of GRS 10PT-8 for testing. Manufacturer’s Thiele & Small Parameters
Unit #2 Measured Thiele & Small ParametersUnit #1 Sealed Box 35 liters. F3=70Hz, Q=0.79Unit #1 Sealed Box 55 liters. F3=70Hz, Q=0.70
Unit #2 Sealed Box 35 liters. F3=65Hz, Q=0.80Unit #2 Sealed Box 55 liters. F3=65Hz, Q=0.70
Unit #1 Ported Box 35 liters. F3=57Hz, Q=0.78Unit #1 Ported Box 52 liters. F3=47Hz, Q=0.70
Unit #2 Ported Box 35 liters. F3=55Hz. Q=0.80Unit #2 Ported Box 45 liters. F3=50Hz. Q=0.74Unit #1 Bandpass Box 45 liters. Fb=85Hz, F3=50Hz~150Hz
Unit #2 Bandpass Box 45 liters. Fb=80Hz, F3=50Hz~150Hz
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May 13, 2022Drivers Thiele & Small, PRO DRIVERS