The Stroboscope Test Record allows precise verification and adjustment of your turntable‘s rotational speed. Since optimum sound quality can only be achieved when the motor speed is accurately set, it serves as a reliable tool for checking absolute platter speed. Manufactured to the highest standards of precision, this high-quality strobe disc is ideal for the fine adjustment of turntables. For particularly convenient and highly accurate measurements, use in combination with the clearaudio Speed Light.