Reckhorn D-165i

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83dB

Thiele & Small parameters

• Resonance frequency (free air) fS 28Hz
• Mechanical quality factor QMS 5.69
• Electrical quality factor QES 0.32
• Total quality factor QTS 0.30

Large signal parameters

• Power handling P 80W
• Program power Pmax 160W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.6Ω
• Inductance (1kHz) LE 1.2mH
• VC Diameter 38mm
• Winding height HVC 24mm

Magnet

• Force factor Bl 9.38N/A
• Motor constant Bl/√RE 4.94N/√W

Diaphragm

• Effective diameter 130mm
• Effective area SD 132cm²
• Moving mass MMS 43g
• Moving mass (without air load) MMD 41.8g
• Material Black Anodized Aluminum

Suspensions

• Stiffness KMS 1.45N/mm
• Compliance CMS 688µm/N
• Equivalent volume to the compliance VAS 17L
• Mechanical resistance RMS 1.33N·s/m

Dimensions

• Nominal diameter 6.5″
• 160mm
• Overall diameter 175mm
• Baffle cutout diameter 149mm
• Overall depth 99mm
• Flange thickness 7mm
• Mounting depth 92mm
• Volume occupied by the driver (estimated) 0.78L
• Net weight 2.3kg
• Frame material Aluminum