Month: January 2022

H1216 + H1189 2way Passive Crossover Design

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H1216 + H1189 2way Passive Crossover Design

SEAS Prestige CA15RLY (H1216) 5.5″ Coated Paper Cone Woofer gives a smooth extended frequency response with a controlled roll off. Blended here with the H1189 fabric dome tweeter with polymer surround. The single small value high pass cap and single low pass choke indicate a nice acoustic match.  

Enclosure suggestions:

  • Sealed box of 0.15 cubic foot for an F3 of 115Hz.
  • Vented box of 0.25 cubic foot with a 1″ diameter vent by 3″ long for an F3 of 68Hz.

H1571 + NEOCD3.0M 2way Passive Crossover Design

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H1571 + NEOCD3.0M 2way Passive Crossover DesignDownload

H1571 + NEOCD3.0M 2way Passive Crossover Design

This design uses the Seas H1571 7″ Curv Cone, same woofer used in the popular Idunn and Bragi kits mated with the Fountek ribbon tweeter. Single high pass cap. No box specified.

Enclosure suggestions:

  • Sealed box of 0.2 cubic foot for an F3 of 97Hz.
  • Vented box of 0.5 cubic foot with a 2″ diameter vent by 6″ long for an F3 of 51Hz.
  • Vented box of 0.7 cubic foot with a 2″ diameter vent by 5.75″ long for an F3 of 44Hz.