The SD28ND04RD is a very high performance tweeter designed to cover a wide frequency band.
Its 28mm silk treated dome is fixed to an aluminum support reel. The large neodymium ring motor (external diameter 56mm) allows a very intense and linear flow.
The intrefer is ferrofluidized in order to increase the permissible power. The façade is made of injected aluminum (absence of parasitic vibrations) and benefits from the ADP (Anamorphic Dispersion Patterns) technology.
ThisSpecificity ATOHM ensures better dispersion off-axis and limits spurious reflections at very high frequencies. The dampened rear cavity optimizes the behavior of the tweeter at the lowest frequencies.
Thethe core is provided with a copper ring which limits the creation of currents induced in the polar parts. The frequency response is characterized by excellent linearity combined with low directivity and an extension of more than 30 kHz.
Great finesse of restitution, high efficiency and very low distortion rates make it an exceptional model.