ดอกลำโพง18นิ้ว Eighteen Sound รุ่น 18TLW3000

Specifications

Sensitivity (1W, 1m, infinite baffle)SPL1W94dB
Frequency response30 - 2000Hz
Thiele & Small parameters
Resonance frequency (free air)fS32Hz
Mechanical quality factorQMS13.80
Electrical quality factorQES0.36
Total quality factorQTS0.35
Large signal parameters
Maximum linear excursion (one way)xmax12mm
Air volume displaced at xmaxVD1470cm³
Power handlingP1800W
Program powerPmax3600W

Voice Coil
Nominal impedanceZ4Ω
DC resistanceRE2.4Ω
Inductance (1kHz)LE1.2mH
VC Diameter100mm
Winding materialCopper

Magnet
Force factorBl20N/A
Motor constantBl/√RE12.9N/√W
Diaphragm
Effective diameter395mm
Effective areaSD1225cm²
Moving mass (including air load)MMS280g
Moving massMMD250g

Suspensions
StiffnessKMS11.4N/mm
ComplianceCMS88µm/N
Equivalent volume to the complianceVAS185L
Mechanical resistanceRMS4.08N·s/m

Dimensions
Nominal diameter18″
460mm
Overall diameter462mm
Baffle cutout diameter416mm
Overall depth275mm
Flange thickness24mm
Mounting depth251mm
Volume occupied by the driver (estimated)8.6L
Net weight13.2kg