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    • Home
    • Mid-Horns
    • K53k Adapter!
    • Tweeters
    • Gallery
    • Why Symmetric Tractrix
    • ALK Engineering
    • Links
    • Testimonials
    • Contact & Ordering
  • Home
  • Mid-Horns
  • K53k Adapter!
  • Tweeters
  • Gallery
  • Why Symmetric Tractrix
  • ALK Engineering
  • Links
  • Testimonials
  • Contact & Ordering

Mid - Horns.

Fastrac-402 W/1 inch throat ext: For use with K55

Drop in replacement horn for Lascala and KHorn.

Fc 317Hz

$550 per pair plus shipping. 


Fastrac-402 For use with 2 inch drivers

Drop in replacement horn for Lascala and KHorn.

Fc 317Hz

$500 per pair plus shipping. 

Fastrac-501 For use with k55

Fastrac-501 For use with k55

Drop in replacement horn for Klipsch Belle.

$300 per pair plus shipping.

Eliptrac-400

Fastrac-501 For use with k55

Eliptrac 400 Fc 300 Hz.

$500 per pair plug shipping.

used in DIY applications comes with cutting template. Works great for Cornscala builds, can also be used in Klipchorns and Belles with custom grills. 

Fastrac-601 Ready to go. A drop in replacement horn for Cornwall speakers. $300 pair plus shipping.

Fastrac-701 Ready to go. $250 per pair plus shipping.

The original K700 horn has been tough to beat. The small mouth area makes pure tractrix designs beyond difficult. I had to come up with a Hybrid Tractrix flair that would allow for the cutoff I need while maintaining the smooth Tractrix sound. 


On that note, any rectangular Tractrix design is a hybrid, because pure Tractrix designs are round.


Fortunately our symmetric Tractrix design is forgiving enough to allow morphing  the small mouth into a usable component.



Fastrac-701

Eliptrac HF-II Work in progress! Large drop in replacement Klipsch Tweeter

Horn Specs Fastrac 501 - K500 replacement.

Fastrac 401 - 402 specs - K400 replacement.

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