Audax HM170Z0 Bass Midrange

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Audax HM170Z0 Bass Midrange

Audiophile 170mm / 6½ inch drive unit from the prestige range. Featuring a composite HDA (High Definition Aerogel) cone and fully ventilated chassis / pole piece, edgewound flat copper voicecoil, high loss rubber phase plug. Superb drive unit with smooth and controlled response.

New old stock in original factory boxes - very rare.

Key Features:

  • HD-A (High Definition Aerogel) cone
  • Non resonant diecast Zamak chassis
  • Edgewound flat copper voicecoil
  • High compliance rubber suspension
  • Kapton voice coil former
  • High loss rubber phase plug
  • Gold plated terminals

Basic parameters:

Resonant frequency (fs) 40 Hz Nominal impedance (Zn) 8 Ω
Mechanical  Q factor (Qms) 6.15 DC resistance (Re) 6.2 Ω
Electrical Q factor (Qes) 0.42 RMS power handling 60 W
Total Q factor (Qts) 0.40 Sensitivity (2.83V/1m) 91 dB
Equivalent volume (Vas) 45.3L Chassis diameter (cropped) 188 mm

Here's the full datasheet:

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