The Funk Firm Houdini decouples the cartridge from the vibration of your tonearm. Three years of development went into creating the Houdini. The result is more information, better fidelity, and better sound. The differences are immediate and are not subtle. In Hi-Fi terms… More Pace / Better Mid clarity / Blacker Space / Greater Dynamics / Stronger Bass Attack. Houdini cartridge isolators provide an enhanced sense of pace and greater dynamic range, allowing for higher volume settings. Harshness and brashness is removed with an increase in resolution.