"This 13-cm (5"") low-midrange speaker with a polypropylene membrane, neodymium magnet and a rubber surround is ideal for applications requiring a very low mounting depth and light weight but without having to sacrifice good bass and mid-range sound.
Fabric is stretched around the front of the speaker, making a grille seem unnecessary and providing protection to the otherwise exposed air gap and to the voice coil.
Rated power: 40 WMusic power: 60 WRated impedance Z: 8 ohmTransmission range (-10 dB): fu to 10,000 Hz (fu: lower frequency threshold dependent on housing).
Mean sound pressure level: 84 dB (1 W/1 m)Excursion limit: +/-8.1 mmResonant frequency fs: 46 Hz"