ES-63i - CDT Audio 6.5" 2-Way Braxial Coaxial Speakers

SKU: 79450 Manufacturer: CDT Audio
ES-63i - CDT Audio 6.5
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Availability:In Stock
Sold as:Complete sets
Condition:Brand New
The coaxial two-way speaker mounts the tweeter on an axis ahead of the apex of the main cone. This tweeter blocks the sound from the main cone as well as producing sound that is always “ahead” of the main cone. The supporting post utilized in this design must pass through the dust-cap and thus allows dirt to pass into the voice coil gap or requires an extra, restrictive noisy spider to exclude some potential dirt ingress.

The area created between the back of the blocking tweeter and the apex of the cone forms a resonant cavity that can color the sound from both woofer and tweeter. The volume of this cavity can vary during long mid/woofer excursions. Response ripple at the crossover frequency can result. The sound from the forward mounted tweeter is always “ahead” of the main cone and is never time aligned with this cone. Most coaxial speakers use a cheap single crossover part embedded somewhere in the assembly.

  • Utilization of a single mounting position for full range response.
  • Sealed dust-cap on the mid/woofer for full extension and protection from dirt.
  • Acoustically non-resonant mount for smoothest response.
  • Time aligned axis defines an optimum listening space for maximum clarity.
  • Uniform polar response is available over a well defined but broad area.


  • Midrange: 6.5" Cast ES-6 Mid-Woofer
  • Crossover: EX-560i “Transient Optimized” Elliptic 4th Order 2-Way
  • Tweeter: DRT-26 Extended Range Modular 1” Tweeter
  • Power handling: 200w RMS
  • Frequency response: 60-20kHz
  • Sensitivity: 92.4 dB
  • Impedance: 4 Ohm

ES-63i - CDT Audio 6.5" 2-Way Braxial Coaxial Speakers

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