Additional Resources: Product Page 3D Model date 03/20/2020 page 1 of 3 MODEL: GF0571M DESCRIPTION: SPEAKER FEATURES 57 mm round frame 0.25 W 8 ferrite magnet mylar cone SPECIFICATIONS parameter conditions/description min typ max units input power 0.25 0.5 W impedance at 0.8 kHz, 1.0 V 6.8 8 9.2 resonant frequency (Fo) at 1.0 V 384 480 576 Hz frequency response Fo 14,000 Hz sound pressure level at 0.25 W, 50 cm, avg at 1.0, 1.4, 1.7, 2.0 kHz 83 86 89 dB buzz, rattle, etc. must be normal at sine wave 1.41 V dimensions 57 x 19 mm magnet ferrite cone material mylar terminal solder eyelets weight 52.0 g operating temperature -25 60 C hand soldering for maximum 3 seconds 360 380 400 C RoHS yes cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: GF0571M DESCRIPTION: SPEAKER date 03/20/2020 page 2 of 3 MECHANICAL DRAWING units: mm tolerance: 0.8 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