The FAITAL PRO 4FE35-4 is a compact full-range loudspeaker. This speaker is known for its flat response across a wide frequency range, making it suitable for various audio applications where space is limited and high-quality sound is required. || NOMINAL SPECIFICATIONS || Nominal Diameter : 100 mm (4 in) || Overall Diameter : 129.85/100.5 mm (5.11/3.96 in) || Bolt Circle Diameter : 115.26 mm (4.54 in) || Baffle Cutout Diameter : 91.5 mm (3.60 in) || Depth : 49.8 mm (1.96 in) || Flange and Gasket Thickness : 7.2 mm (0.28 in) || Net Weight : 570 g (1.3 lb) || Shipping Box (Single Carton Box - 8 units) : 225 x 225 x 150 mm (8.9 x 8.9 x 5.9 in) || Shipping Box (Single Carton Box per unit) : 1.9 x 1.9 x 0.74 in) || Shipping Weight (8 units) : 5 kg (11.0 lb) || Shipping Weight (per units) : 1.38 lb || || TECHNICAL PARAMETERS || Nominal Impedance : 4 Ohm || Minimum Impedance : 3.7 Ohm || AES Power Handling (1) : 30 W || Maximum Power Handling (2) : 60 W || Sensitivity (1W/1m) : 91 dB || Frequency Range : 90÷20000 Hz || Voice Coil Diameter : 19 mm (0.75 in) || Winding Material : Al || Former Material : Kapton || || TECHNICAL PARAMETERS || Winding Depth : 4.8 mm (0.19 in) || Magnetic Gap Depth : 4 mm (0.16 in) || Flux Density : 1.1 T || Magnet : Ferrite Ring || Basket Material : Steel || Demodulation : Copper Cap || Cone Surround (3) : Half Roll || NET Air Volume filled by Loudspeaker : 0.150 dm^3 (0.005 ft^3) || Spider Profile : 1x constant height waves || || THIELE AND SMALL PARAMETERS || Fs : 100 Hz || Re : 3.3 Ohm || Qes : 0.9 || Qms : 3.9 || Qts : 0.73 || Vas : 2.4 dm^3 (0.09 ft^3) || Sd : 51.9 cm^2 (8.04 in^2) || Xmax (4) : 1.73 mm || Xdamage (5) : 6.8 mm || Mms : 3.9 g || Bl : 3 N/A || Le : 0.04 mH || Mmd : 3.5 g || Cms : 0.65 mm/N || Rms : 0.65 kg/s || Eta Zero : 0.26 % || EBP : 111 Hz || || Brand : FAITAL PRO || Model Number : 4FE35-4 | 4FE35 || UPC : 810130951321 || PART NUMBER (P/N)Faston Terminals - 4 Ohm Version : 1004109 || NOTES || (1) 2 Hours Test According to AES 2-1984 Rev. 2003 || (2) Maximum power is defined as 3dB greater than nominal power || (3) NBR (Rubber) || (4) Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3) || (5) Maximum excursion before permanent damage