VOLT SB2550

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.3dB
• Frequency response 18 - 500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 21Hz
• Mechanical quality factor QMS 1.90
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 11mm
• Maximum excursion before damage xlim 18mm
• Air volume displaced at xmax VD 371cm³
• Power handling P 200W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 1.46mH
• VC Diameter 50mm
• Winding height HVC 29mm
• Winding material Copper

Magnet

• Force factor Bl 14N/A
• Motor constant Bl/√RE 5.72N/√W
• Air gap height HAG 8mm

Diaphragm

• Effective diameter 207mm
• Effective area SD 337cm²
• Moving mass MMS 84.5g
• Moving mass (without air load) MMD 79.6g

Suspensions

• Stiffness KMS 1.45N/mm
• Compliance CMS 690µm/N
• Equivalent volume to the compliance VAS 111L
• Mechanical resistance RMS 5.82N·s/m

Dimensions

• Nominal diameter 10″
• 250mm
• Overall diameter 285mm
• Baffle cutout diameter 253mm
• Overall depth 132mm
• Flange thickness 9mm
• Mounting depth 123mm
• Volume occupied by the driver 1.2L
• Net weight 5.8kg
• Frame material Diecast Aluminium