True Ribbon Tweeter: The finest ribbon tweeter in the world!The Magneplanar direct-coupled ribbon tweeter has no equal in high frequency sound reproduction. With its 360 degree radiating dipole design, the Magneplanar ribbon tweeter is found in our award winning 3.7 and 20.1 speakers. At 1/10th the thickness of a human hair, the Magneplanar ribbon tweeter sets a standard for high resolution. You'll find yourself hearing details in the music you never heard before.Audiophile reviewers have long regarded the Magneplanar true ribbon tweeter as the best on the market. You can be the final judge. Compare the Magneplanar true ribbon against the most expensive dynamic speakers on the market.