Empirical testing by Audio Asylum correspondent Garth using a Schröder arm with a verified effective mass showed that the DL-103's compliance is likely 10-12 cu if it were measured by the standard method used by most cartridge manufacturers. There's lots of real world experience demonstrating that the 103 works well in medium mass arms such as Regas that, using the familiar resonance frequency formula, should be gross mismatches.
