4 Inch Speaker Z001800 (8ohms)

GENERAL CHARACTERISTICS

• Nominal Overall Diameter ................. 104 mm
• Nominal Voice Coil Diameter .............. 25 mm
• Magnet Weight ............................... 380 g
• Flux Density................................... 1.10 T
• Weight......................................... 0.85 Kg

THIELE-SMALL PARAMETERS

• Voice Coil DC Resistance ........... RE 3.23
• Resonance Frequency ............... fs 128.0 Hz
• Mechanical Q Factor................. QMS 1.97
• Electrical Q Factor................... QES 0.50
• Total Q Factor........................ QTS 0.40
• Mechanical Moving Mass ............ MMS 3.0 g
• Mechanical Compliance............. CMS 510 m/N
• Force Factor .......................... B~l 3.96 Wb/m
• Equivalent Acoustic Volume........ VAS 1.4 lt.
• Maximum Linear Displacement .... XMAX +/-1.3 mm
• Reference Efficiency ................ 0 0.56 %
• Diaphragm Area ...................... SD 44.2 cm2
• Losses Electrical Resistance........ RES 12.7
• Voice Coil Inductance @ 1kHz ..... LE 0.08 mH

CONSTRUCTIVE CHARACTERISTICS

• Magnet................................. Ferrite
• Voice Coil Winding................... Copper
• Voice Coil Former.................... Aluminum
• Cone ................................... Paper
• Surround............................... Treated
• Cloth Dust Dome ............................ Polypropylene
  Ogive Basket ................................. Pressed Sheet Steel