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The Impedance Meter / Signal Generator Some Uses: •Obtain a driver's T/S Parameters* •Determine speaker crossover set points •Find tuning frequency of passive radiator •Find tuning frequency of ported enclosure •Find volume of sealed enclosure •Locate rattles in vehicle •Find crossover frequency of passive crossover networks *When used with D'Amore Engineering software Some Specs: Precision AC Impedance meter, range = 0.01 ohms to 99 ohms 10Hz to 20kHz pure sine tone generator Pink Noise generator Shipping Box 9 x 6 x 2 inches, 2 lbs Documentation: Owner's Manual (PDF) Speaker Design Spreadsheet: Speaker Design (Excel) Training Videos: Video 1 (Measuring Thiele/Small Parameters) Video 2 (Measuring a Ported Enclosure) Video 3 (Measuring a Sealed Enclosure and Calculating it's Internal Volume) Video 4 (RCA Interconnect testing) Show more