Audax HM170Z2 Bass Midrange

Notify me when this product is available:

Audax HM170Z2 Bass Midrange.

High performance 170mm / 6½ inch HD-Aerogel twin voicecoil bass midrange drive unit from the prestige range. Featuring a composite high definition Aerogel cone and fully ventilated Zamak chassis / pole piece. Twin edge wound voice coils can be configured for 4, 8 and 16 ohms. This drive unit has a neutral tonal balance with precise and detailed imaging - perfect for high end monitors.

New old stock - very, very rare, supply is limited.

Suggested ported application:

 Volume (litres) Fb Port diameter Port length F3
45 35Hz 75mm 127mm 38Hz
45 28Hz 50mm 90mm 29Hz
15 45Hz 50mm 108mm 43Hz
8 53Hz 32mm 58mm 58Hz
8 40Hz 32mm 115mm 60Hz

Key Features:

  • HD-A (High Definition Aerogel) cone
  • Non resonant diecast Zamak chassis
  • 2x edgewound flat copper voicecoil
  • High compliance rubber suspension
  • Kapton voice coil former
  • Gold plated terminals

Basic parameters:

Resonant frequency (fs) 35 Hz Nominal impedance (Zn) 2x8 Ω
Mechanical  Q factor (Qms) 7.6 DC resistance (Re) 2.7 Ω
Electrical Q factor (Qes) 0.37 RMS power handling 60 W
Total Q factor (Qts) 0.35 Sensitivity (2.83V/1m) 89 dB
Equivalent volume (Vas) 27.4L Chassis (squared section) 188 mm

Here's the full datasheet:

.pdf icon