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Black ABS plastic horn adapter with 100 mm outer diameter and 34 mm thread diameter

Ruth's sister

Ruth's sister Horn Adapter 34 51 100 mm international power cord

SKU CH-MEPG-PFBNM

A black ABS horn adapter with a 34 mm thread, 51-87 mm bolt circle and 100 mm outer diameter for tweeter-to-horn conversion

  • Precision fit for 34 mm thread and 51–87 mm bolt circle
  • Durable ABS plastic resists breakage in demanding installs
  • Long-distance mounting holes add layout flexibility
  • Black 100 mm outer diameter suits professional speaker builds
  • Single adapter included — ready for DIY horn-to-tweeter conversion

Horn Adapter for tweeter mating

This horn adapter converts the interface between a horn and a tweeter speaker for professional audio and DIY home theater builds. It is made from black ABS plastic and supplied as a single piece without retail packaging. The adapter suits installers who need a durable mounting bridge between driver and horn throat.

Thread and bolt-circle dimensions

The adapter has a 34 mm thread diameter and a bolt circle diameter ranging from 51 mm to 87 mm with an outer diameter of 100 mm. These measurements determine whether the unit fits a specific driver and horn combination under sustained vibration. Builders must verify their hardware matches the 1.34 in thread and 2.01 to 3.43 in bolt pattern before ordering.

Replaces worn or mismounted adapters

This part replaces a cracked, stripped or missing adapter that causes air leaks or misalignment between horn and tweeter. The jump is worth it when the existing mount no longer seals or the bolt pattern does not match the new driver. It is not for buyers who need a horn flare, a compression driver or a complete speaker cabinet.

Highlights

  • Precision fit for 34 mm thread and 51–87 mm bolt circle
  • Durable ABS plastic resists breakage in demanding installs
  • Long-distance mounting holes add layout flexibility
  • Black 100 mm outer diameter suits professional speaker builds
  • Single adapter included — ready for DIY horn-to-tweeter conversion

Specifications

No published specifications for this item yet.

Questions about this item

Does the adapter generate any noise or heat when the speaker system runs all day?

The horn adapter is a passive ABS plastic component with no moving parts or electronics, so it produces no noise or heat during continuous operation.

What speaker parts must I already own for this 34 mm thread and 51–87 mm bolt-circle adapter to work?

You need a horn or tweeter with a 34 mm core screw thread and a mounting flange that matches the 51 mm to 87 mm bolt-circle diameter.

Will this 100 mm outer-diameter adapter fit the older horn I plan to keep in my DIY home-theater build?

It fits if your existing horn has a 34 mm thread and a bolt-circle between 51 mm and 87 mm; otherwise the mounting holes will not align.

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