PowerBass 2XL-1040D

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.9dB
• Frequency response 35 - 450Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 32Hz
• Mechanical quality factor QMS 6.42
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.42

Large signal parameters

• Maximum linear excursion xmax 11.5mm
• Air volume displaced at xmax VD 395cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 2 x 4Ω
• DC resistance (in series) RE 6.8Ω
• Inductance (1kHz, in series, estimated) LE 5.15mH
• VC Diameter 64mm

Magnet

• Force factor (in series) Bl 22.6N/A
• Motor constant Bl/√RE 8.68N/√W
• Weight 7.94kg

Diaphragm

• Effective diameter 209mm
• Effective area SD 343cm²
• Moving mass MMS 201g
• Moving mass (without air load) MMD 197g
• Material Woven Glass Fiber and Kraft Paper

Suspensions

• Stiffness KMS 7.41N/mm
• Compliance CMS 135µm/N
• Equivalent volume to the compliance VAS 25.5L
• Mechanical resistance RMS 6.31N·s/m

Dimensions

• Nominal diameter 10″
• 254mm
• Baffle cutout diameter 229mm
• Mounting depth 133mm
• Volume occupied by the driver (estimated) 1.5L