10 cm (4") fullrange speaker with good bass reproduction, balanced frequency response and high efficiency. Especially suitable as built-in speaker for music reproduction and as driver for 100 V network column speakers.
13 cm (5") full-range loudspeaker with an inverted cone. Uniform frequency response and powerful low-frequency output. Simple installation e.g. in vehicles with loudspeaker mounts for 13 cm loudspeakers.