RAAL DIPOLE-140-15D Ribbon Tweeter

The RAAL 140-15D Dipole True Ribbon Tweeter with Amorphous Core represents a pinnacle of high-frequency transducer engineering, designed to deliver an exceptionally open and natural soundstage. As a true ribbon tweeter, it eschews conventional dome or cone designs for an ultra-thin, low-mass ribbon diaphragm that moves air with unparalleled speed and precision, resulting in a transparent, airy top end that breathes life into any audio system.

This tweeter is ideally suited for dipole and open-baffle loudspeaker configurations, where its bidirectional radiation pattern complements the natural dispersion characteristics of such designs. It excels in high-resolution home audio systems, studio monitors, and bespoke loudspeaker projects where sonic purity is paramount. With a recommended crossover frequency of 16 kHz and a sensitivity of 95 dB SPL at 1 metre with 2.83 volts, it integrates seamlessly with moderate-power amplifiers and high-quality passive or active crossovers.

Technically, the 140-15D features a powerful amorphous core motor structure, which dramatically reduces distortion and improves transient response compared to conventional ferrite or neodymium motors. The ribbon element itself is housed in a precision-machined chassis with a cut-out size of 153 mm by 63 mm and a depth of 93.5 mm, allowing for straightforward integration into custom baffles. Its nominal impedance of 8 ohms ensures compatibility with a wide range of amplification. For the discerning listener seeking the ultimate in high-frequency realism, this tweeter offers an uncompromising path to audio excellence.