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Audax AP170Z0 Bass Midrange

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Audax AP170Z0 Bass Midrange

Used in HFW Design KLS5

High performance 6½ inch bass midrange drive unit featuring a composite HDA (High Definition Aerogel) cone and resonance free polymer chassis. Operates as a pure piston with a ruler flat response to 1000Hz. Downloadable datasheet at bottom of this page.

New old stock in original factory boxes - supply is limited.

Suggested ported enclosures:

Volume (litres) Fb Port diameter Port length F3
15 54Hz 60mm 150mm 58.8Hz
20 54.3Hz 60mm 100mm 52.2Hz

Key Features:

  • HD-A (High Definition Aerogel) cone
  • Non resonant high impact polymer chassis
  • Aluminium voice coil former
  • High temperature voice coil
  • High loss rubber suspension
  • Fully shielded magnet

Basic parameters:

Resonant frequency (fs) 48.5 Hz Nominal impedance (Zn) 6 Ω
Mechanical  Q factor (Qms) 1.61 DC resistance (Re) 5.3 Ω
Electrical Q factor (Qes) 0.50 RMS power handling 60 W
Total Q factor (Qts) 0.38 Sensitivity (2.83V/1m) 89.3 dB
Equivalent volume (Vas) 24.65L Chassis (squared section) 210 mm

Here's the full datasheet:

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