HiVi RT2H-A Planar Isodynamic Tweeter

The HiVi RT2H-A Isodynamic Planar Horn Tweeter represents a sophisticated solution for achieving exceptional high-frequency reproduction in custom loudspeaker designs. Engineered with precision, this funnel radiator delivers the clarity and airiness that discerning listeners demand, making it an ideal choice for high-fidelity audio systems, studio monitors, and bespoke home theatre installations where accurate treble response is paramount.

At the heart of the RT2H-A lies an isodynamic planar driver, which employs a large, rectangular diaphragm measuring 26.9 by 117.1 millimetres. This design ensures controlled dispersion and remarkably low distortion, even at elevated output levels. The integrated horn structure further refines the sound field, providing a smooth, even coverage that integrates seamlessly with midrange drivers. With a sensitivity of 94 decibels (measured at 1 metre with 2.83 volts) and an 8-ohm impedance, this tweeter is both efficient and straightforward to incorporate into crossover networks. A recommended crossover frequency of 3,000 Hertz using a second-order filter ensures optimal performance and driver protection.

The tweeter’s robust construction is complemented by a compact footprint, with overall dimensions of 181.1 by 181.1 millimetres and a mounting depth of just 41.4 millimetres. The cut-out requirement is a square of 155.7 millimetres, facilitating straightforward installation. Whether you are upgrading an existing design or building from scratch, the RT2H-A delivers the refined, open high-frequency performance that elevates any loudspeaker project.