Horn type

Compound horn

How it connects

The front of the cone feeds the front horn and the back of the cone feeds the rear horn, each through an optional coupling chamber.

The two mouths are separate outputs that add with their phase at the listener, like the horn and direct radiator of a back-loaded horn.

When the rear horn is short enough to act as a vent, the sidebar shows its Rear tuning.

When to use it

Good for

• Getting horn loading on both sides of the cone.
• Designs where a short rear path should behave like a port.

Watch for

• The two mouths can cancel where their outputs overlap. Check Horn Radiating Outputs.
• Switching a horn to compound sets both entry positions to 0 %. If you switch back to tapped, set the rear tap again.
• The diagnostics graphs call the front path Main.

What you set

Set the enclosure type to Horn, then choose Compound under Horn type, in the enclosure panel or in the Horn Editor’s path bar. These controls then appear in the horn card:

The driver marker can be dragged along either path. Use the Front and Rear chips in the path bar to switch which horn you are editing. How the Horn Editor works.

What the rear horn length does

Only the rear horn length changes. Each longer rear horn carries the output lower, and the ripple through the band changes as the two mouths interact differently.

How the outputs add up

The dashed lines are the front and rear mouths on their own. The total follows whichever is louder, and dips where they are close in level and out of step.

Diagnostics and stuffing

Horn Radiating Outputs shows the Main mouth and the Rear mouth with their total. Main coupling and Rear coupling appear when their chambers have a cross-section. Reading the horn diagnostics.

Spans on both horns can be stuffed. How stuffing works.

Folding and Hornresp

Folding

Not yet. Folding handles one horn path, so the Fold into cabinet button is disabled for compound horns and the Fold tile says the type does not fold yet.

Hornresp export · CH, CH1, CH2 or CH3

Entries must be at the throat or the first junction. A rear coupling chamber cannot currently be exported, and the export says so. The two faces need opposite polarities.

Checked against Hornresp

13 native Hornresp cases of this type are re-simulated in the regression tests. 12 of 12 agreement checks meet their tolerances, and 1 more track stuffing-model differences without claiming agreement.

Folding a horn into a cabinet · Exporting to Hornresp

Try it

There is no example for this type yet. Open the simulator, add an enclosure, set its type to Horn and choose Compound under Horn type. It starts from the default horn path.

Open the simulator