Speaker 18″ SOUNDTECH STA- 550

Product Description

Specifications:

o   General Specifications:

ü  Nominal Diameter                  :460mm / 18in

ü  Rate Impedance                                      : 8 ohms

ü  Power Rating*                                          : 900 watt

ü  Program Power                                      : 1800 watt

ü  Sensitivity**                                              : 94 dB

ü  Frequency Range                                    : 25Hz – 1500Hz

ü  Max. Excursion                                        :19mm

ü  Voice Coil Diameter                               : 114.5mm / 4.5in

ü  VC Wire Material                                     : Copper Clad

ü  Number of Layer                                    : 1 L

ü  Cone Material                                           : Semi Press Pulp

ü  Surround Material                  : Polycotton

ü  Magnet Weight                                         : 113 Oz

ü  Top Plate Thickness                              : 11 mm

ü  Pole Plate                                                   : Vented

o   Thiele Small Parameter :

ü  Resonance Frequency                          : 55 Hz

ü  DC Resistance                                    : 5.3 ohm

ü  Mechanical Factor                                  : 13.32

ü  Electrical Factor                                     : 1.27

ü  Total Factor                                            : 1.12

ü  BL Factor                                               : 15.5 T-M

ü  Moving Mass                                             : 145 grams

ü  Compliance Equivalent Volume      : 104 Liters

ü  Effective Piston Area                            : 1134 cm²

ü  Max. Linear Excursion                          : 7 mm

ü  Voice Coil Inductance @ 1KHz         : 0.82 mH

Note :

*Evaluated under AES test standard

** Measurement  base on 2.83V at 1W/1M