ESX SX1040

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87dB

Thiele & Small parameters

• Resonance frequency (free air) fS 29Hz
• Mechanical quality factor QMS 5.30
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.32

Large signal parameters

• Maximum linear excursion xmax 8.5mm
• Maximum excursion before damage xlim 15mm
• Air volume displaced at xmax VD 282cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.2Ω
• Inductance (1kHz) LE 1.1mH
• VC Diameter 50mm
• Winding height HVC 25mm
• Former material Aluminium

Magnet

• Force factor Bl 13N/A
• Motor constant Bl/√RE 7.27N/√W
• Diameter 140mm
• Height 40mm
• Weight 2.268kg

Diaphragm

• Effective diameter 206mm
• Effective area SD 332cm²
• Moving mass MMS 99g
• Moving mass (without air load) MMD 94.5g
• Material Non-pressed Paper

Suspensions

• Stiffness KMS 3.32N/mm
• Compliance CMS 301µm/N
• Equivalent volume to the compliance VAS 47L
• Mechanical resistance RMS 3.4N·s/m
• Surround material Rubber
• Spider material Single Nomex

Dimensions

• Nominal diameter 10″
• 250mm
• Overall diameter 265mm
• Baffle cutout diameter 236mm
• Mounting depth 127mm
• Volume occupied by the driver (estimated) 3.1L
• Net weight 7.0kg
• Frame material Diecast Aluminium