Additional Resources: Product Page 3D Model date 01/29/2020 page 1 of 3 MODEL: CMS0401KL-1X DESCRIPTION: SPEAKER FEATURES 40.1 x 40.1 mm square frame 4.0 W 8 neodymium magnet mylar cone SPECIFICATIONS parameter conditions/description min typ max units input power 4.0 6.0 W impedance at 1.0 kHz, 1.0 V 6.8 8 9.2 resonant frequency (Fo) at 1.0 V 344 430 516 Hz frequency response Fo 20,000 Hz sound pressure level at 1.0 W, 50 cm, avg at 0.5, 0.6, 0.8, 1.0 kHz 84 87 90 dB buzz, rattle, etc. must be normal at sine wave 5.66 V dimensions 40.1 x 40.1 x 14.5 mm magnet Nd-Fe-B cone material mylar terminal solder eyelets weight 42.5 g operating temperature -25 60 C hand soldering for maximum 3 seconds 340 350 360 C RoHS yes Notes: 1. All specifications measured at 15~35C, humidity at 25~75%, under 86~106 kPa pressure, unless otherwise noted. cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: CMS0401KL-1X DESCRIPTION: SPEAKER date 01/29/2020 page 2 of 3 MECHANICAL DRAWING units: mm FREQUENCY RESPONSE CURVE parameter conditions/description potentiometer range 50 dB rectifier RMS lower limit frequency 20 Hz wr. speed 100 mm/sec zero level 60 dB cuidevices.com