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This item is in stock and ready to purchase. In store Pickup. Please call for more information.


Audio Dynamics speakers were designed to reproduce music with ultimate accuracy. They have spent countless listening hours examining the tonal qualities of many different materials; from glass fiber to Kevlar, to carbon fiber and more. Ultimately, they chose wool pulp for its ability to deliver astonishing realism and detailed timbre across the frequency spectrum. In order to combat the moisture in a vehicle, they added an acoustically-transparent chemical. As much time and development went into designing the tweeter in this component set. It uses the highest grade transparent silk material and powerful Neodymium motors to produce clear, detailed, and smooth highs. Audio Dynamic speakers will pull you back into the musical performance and breathe life into your music collection.



  • Perfectly blended wool pulp cone mid/woofer for realistic tonal accuracy
  • 6 ½ in (166 mm) Cast frame mid/woofer
  • 60 count yarn cloth surround
  • 1 3/16 in (30 mm) voice coil mid/woofer
  • Pushpin terminals on mid/woofer
  • Shorting ring for extended response
  • Gold plated terminals
  • 1 in (25 mm) High-end transparent silk dome tweeter
  • Aluminum tweeter housing with thread lock flush mounting
  • Polypropylene capacitor and air-core inductor in tweeter crossover circuit
  • -4, -2, 0 dB direct wire tweeter attenuation
  • 150 Watts RMS power handling*

* All power ratings are figured using an electronic high pass crossover with a minimum crossover point of 60Hz at 24dB/Octave, 80Hz at 18dB/Octave, or 100Hz at 12dB/Octave.


Midbass Dimensions:

  • Frame Outer Diameter 6.53in (166mm)
  • Grille Outer Diameter 7.16in (182mm)
  • Motor Outer Diameter 3.93in (100mm)
  • Grille Protrusion 0.90in (23mm)
  • Mounting Hole Diameter 5.59in (142mm)
  • Mounting Depth 2.67in (68mm)


Tweeter Dimensions:

  • Outer Case Diameter 2in / 50.2mm
  • Flush Mounting Depth 5/8in / 15mm
  • Flush Mounting Diameter 1 3/4in / 43mm
  • Flush Mount Protrusion 1/4in / 6mm


Midbass T/S Parameters:

  • Fs 55.450 Hz
  • Qms 2.579
  • Vas 12.880 l
  • Cms 0.506 mm/N
  • Mms 16.080 g
  • Rms 2.195 kg/s
  • Dia 130.500 mm
  • Sd 133.755 cm²
  • Qes 0.480
  • Re 3.836 Ω
  • Le 0.165 mH
  • Z 4.603 Ω
  • Bl 6.687 Tm
  • Bl²/Re 11.659 N²/W
  • Qts 0.405 no 0.440 %
  • SPL 88.587 dB


Tweeter T/S Parameters:

  • Fs 1742.000 Hz
  • Qms 1.672
  • Qes 3.498
  • Re 3.177 Ω
  • Le 0.050 mH
  • Z 3.8124 Ω
  • Qts 1.131

Audio Dynamics CS643A 6.5" Component Set

This item is in stock and ready to purchase. In store Pickup. Please call for more information.
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