Classic 18W/4545-03 7" Woofer

This unit is an improved version of the highly praised 18W/4545-00 midwoofer, where a new aluminum chassis, an updated cone and a new spider as wells as a few other details are introduced.
€179.95
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This unit is an improved version of the highly praised 18W/4545-00 midwoofer, where a new aluminum chassis, an updated cone and a new spider as wells as a few other details are introduced.

 

Highlights

  • Patented Symmetrical Drive Motor Design
  • Improved Air Dried Paper/Carbon Fibre Cone
  • 42mm Voice Coil w. Aluminum foil
  • Low-Loss linear suspension
  • Low Damping SBR Rubber Surround

 

Product details

Scan-Speak Classic 18W/4545-03 7" Woofer

 

Note: The T/S Parameters specified below are taken from the 18W/4545-00 as more specific T/S Parameters are not available yet.

SI18W454503

Data sheet

Impedance
4 Ohm
Driver type
Midwoofer
Sensitivity
90 dB 2.83V/1m
Frequency range
30 - 3000 Hz
Resonance frequency (fs)
35 Hz
DC resistance (Re)
3.4 ohms
Mechanical Q (Qms)
2.49
Electrical Q at Fs (Qes)
0.38
Total Q factor (Qts)
0.33
Speaker diameter
7"
Power handling
160 W
Effective mechanical mass incl air load (mms)
21.6 g
Effective piston radiating area (Sd)
145 cm²
Force factor (BL)
6.6 Tm
Equivalent volume of compliance (Vas)
28.2 L
Overall diameter
6.97"
Mounting diameter
6.22"