In both lines their products are mostly known for its woofers and subwoofers capable of delivering high sound level output with comparatively low frequency ranges using comparatively low power input, as well as the red ring commonly found on the surround of many of their speaker drivers over the decades.
The company's products are widely recognized for their powerful woofers and subwoofers, capable of producing high sound levels with relatively low power consumption, along with the distinctive red rings often seen around their speaker driver surrounds.