The TA-500 is a precisely manufactured precision-bearing 9 inch tone arm. The precision miniature ball bearings used are from manufacturer SKF. The bearings are added with minimal pre pressure for zero backlash to achieve a minimum friction and maximum stability. The armtube is a custom made dual carbon tube. This creates a very rigid tube but still having a high damping and resonance. The TA-500 is only available with 5 pin connector and a Audioquest 5 Pin cable is supplied with the arm.