Additional Resources: Product Page 3D Model date 03/16/2020 page 1 of 3 MODEL: GF0778B DESCRIPTION: SPEAKER FEATURES 77 mm square frame 3.0 W 8 ferrite magnet paper cone SPECIFICATIONS parameter conditions/description min typ max units input power 3.0 5.0 W impedance at 0.8 kHz, 1.0 V 6.8 8 9.2 resonant frequency (Fo) at 1.0 V 200 250 300 Hz frequency response Fo 15,000 Hz sound pressure level at 1.0 W, 50 cm, avg at 0.5, 0.6, 0.8, 1.0 kHz 92 95 98 dB buzz, rattle, etc. must be normal at sine wave 4.89 V dimensions 77 x 77 x 30.5 mm magnet ferrite cone material paper terminal solder eyelets weight 133.0 g operating temperature -25 70 C hand soldering for maximum 3 seconds 360 380 400 C RoHS yes cuidevices.comAdditional Resources: Product Page 3D Model CUI Devices MODEL: GF0778B DESCRIPTION: SPEAKER date 03/16/2020 page 2 of 3 MECHANICAL DRAWING units: mm 77.0 3.031 tolerance: 0.8 mm 68.5 2.697 45.0 1.772 30.5 1.201 1 17.0 0.669 0.5 3.0 0.118 5.0 0.197 0.1 (4 PLCS) 4.45 0.175 (-) 61.0 2.402 0.5 (+) 2.80 0.110 61.0 2.402 0.5 FREQUENCY RESPONSE CURVE parameter conditions/description potentiometer range 50 dB rectifier RMS lower limit frequency 20 Hz wr. speed 100 mm/sec zero level 70 dB cuidevices.com