Additional Resources: Product Page 3D Model date 07/16/2020 page 1 of 5 MODEL: CSS-878731-58 DESCRIPTION: SPEAKER FEATURES 5 W rated power 8 ohm rated impedance 95 dB at 1 W SPECIFICATIONS parameter conditions/description min typ max units input power 5.0 8.0 W impedance at 1.0 kHz, 1.0 V 6.8 8 9.2 resonant frequency (Fo) at 1.0 V 440 550 660 Hz frequency response Fo 10,000 Hz at 1.0 W, 50 cm, at 1.0 kHz in baffleboard 92 95 98 dB sound pressure level at 5.0 W, 50 cm, at 1.0 kHz in baffleboard 98 101 104 dB distortion at 1.0 kHz, 1 W 8 % must be normal at sine wave, frequency range buzz, rattle, etc. 6.32 V between Fo~2 kHz polarity cone moves forward w/ positive dc current to + terminal dimensions 87 x 87 x 31.5 mm magnet ferrite frame material SPCC cone material mylar terminal solder terminals weight 225 250 275 g operating temperature -20 60 C storage temperature -25 70 C hand soldering for maximum 3 seconds 380 C RoHS yes Notes: 1. All specifications measured at 15~35C, humidity at 45~85%, under 86~106 kPa pressure, unless otherwise noted. cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: CSS-878731-58 DESCRIPTION: SPEAKER date 07/16/2020 page 2 of 5 MECHANICAL DRAWING units: mm tolerance: 0.3 mm cuidevices.com