Hertz Dieci DS 25.3

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.9dB
• Frequency response 32 - 400Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 36Hz
• Mechanical quality factor QMS 5.00
• Electrical quality factor QES 1.13
• Total quality factor QTS 0.92

Large signal parameters

• Maximum linear excursion xmax 9mm
• Maximum excursion before damage xlim 16mm
• Air volume displaced at xmax VD 328cm³
• Power handling P 150W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz) LE 2.15mH
• VC Diameter 38mm

Magnet

• Force factor Bl 8.5N/A
• Motor constant Bl/√RE 4.68N/√W
• Diameter 100mm
• Height 25mm
• Material Ferrite

Diaphragm

• Effective diameter 215mm
• Effective area SD 365cm²
• Moving mass MMS 106g
• Moving mass (without air load) MMD 101g
• Material Polypropylene with Mica injection

Suspensions

• Stiffness KMS 5.56N/mm
• Compliance CMS 180µm/N
• Equivalent volume to the compliance VAS 34L
• Mechanical resistance RMS 4.8N·s/m

Dimensions

• Nominal diameter 10″
• 250mm
• Overall diameter 257mm
• Baffle cutout diameter 234mm
• Overall depth 116mm
• Flange thickness 12mm
• Mounting depth 104mm
• Volume occupied by the driver (estimated) 1.3L
• Net weight 3.0kg