Assertion: sounding speaker | /r/HasProperty | e.g. rogers
Facets:
Source sentences:
text: The speakers of the Sixties and into the Seventies often had high-efficiency paper-cone drivers - where the British constructors were heading towards heavily coated bextrene cones with an all-time low sensitivity of 78-80 dB/2.8V and became famous for their neutral sounding speakers, e.g. Rogers, B&W, Spendor, etc.