Scan-Speak 18W/8545K00

Mid Bass

Nominal diameter8″ / 180 mm
Resonance28 Hz
Q factor0.28
Sensitivity87 dB
Linear excursion± 6.5 mm
Program Power170 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 87dB
  • Frequency response 28 - 3000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 28Hz
  • Mechanical quality factor QMS 5.20
  • Electrical quality factor QES 0.30
  • Total quality factor QTS 0.28

Large signal parameters

  • Maximum linear excursion xmax 6.5mm
  • Maximum excursion before damage xlim 10mm
  • Air volume displaced at xmax VD 94cm³
  • Power handling P 100W
  • Program power Pmax 170W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.5Ω
  • Inductance (1kHz, estimated) LE 0.91mH
  • VC Diameter 42mm
  • Winding height HVC 19mm
  • Former material Glass Fiber

Magnet

  • Force factor Bl 8.2N/A
  • Motor constant Bl/√RE 3.5N/√W
  • Air gap height HAG 6mm

Diaphragm

  • Effective diameter 136mm
  • Effective area SD 145cm²
  • Moving mass MMS 20.5g
  • Moving mass (without air load) MMD 19.2g
  • Material Paper/Carbon Fibre

Suspensions

  • Stiffness KMS 0.633N/mm
  • Compliance CMS 1580µm/N
  • Equivalent volume to the compliance VAS 46.4L
  • Mechanical resistance RMS 0.69N·s/m
  • Surround material SBR Rubber

Dimensions

  • Nominal diameter 8
  • 180mm
  • Volume occupied by the driver 0.54L
  • Net weight 2.3kg
Scan-Speak 18W/8545K00 SPL & Impedance
Scan-Speak 18W/8545K00 Dimensions

Similar speaker drivers to Scan-Speak 18W/8545K00

SB Acoustics MW16P-4 Mid Bass

SB Acoustics MW16P-4

4 Ω
6.5 Mid Bass
fS28 Hz
SD119 cm²
QTS0.27
xmax6 mm
SPL1W87.6 dB
Bl/√RE2.82
Pmax120 W
SB Acoustics MW16TX-4 Mid Bass

SB Acoustics MW16TX-4

4 Ω
6.5 Mid Bass
fS29 Hz
SD119 cm²
QTS0.27
xmax6 mm
SPL1W87.7 dB
Bl/√RE2.82
Pmax120 W
MONACOR SPH-165CP Mid-range

MONACOR SPH-165CP

8 Ω
6.5 Mid-range
fS30 Hz
SD127 cm²
30 - 6000 Hz
QTS0.31
xmax4.8 mm
SPL1W86.5 dB
Bl/√RE3.1
Pmax120 W