Horn type

Tapped horn

How it connects

The path starts at a closed end. The front of the cone enters at the front entry position and the back of the cone at the rear tap position, further along.

There is no box behind the cone: the path itself loads both faces, so its length and the two entry positions set where the output peaks and where it cancels.

When to use it

Good for

• High-output subwoofers in a compact, foldable cabinet.
• Drivers with a strong motor, a low Qts and plenty of excursion.

Watch for

• Below the working band the horn stops loading the cone and excursion climbs. Use a high-pass filter and check excursion at the power you plan to use.
• Above the working band the response has deep notches and peaks. A subwoofer’s low-pass filter normally sits below them.

What you set

Set the enclosure type to Horn, then choose Tapped 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 and rear-tap markers can both be dragged along the path. The drawing starts at the closed end. How the Horn Editor works.

What the front entry position does

Only the front entry moves. The working band barely changes, and the simulator reports the same −3 dB point for all three. What moves is the region above the band: with the entry furthest from the closed end, the first deep notch falls much closer to the top of the band.

Diagnostics and stuffing

The one output is the Main mouth. Locations include the closed end, both entry points and the span ends. When the throat chamber has both a volume and a cross-section, it shows as Front coupling. Reading the horn diagnostics.

Any span of the horn can be stuffed, including the closed section before the front entry. How stuffing works.

Folding and Hornresp

Folding

Available. The Fold tile keeps the closed end capped and leaves clearance for the cone near it. Its Front tap and Rear tap chips show where the driver lands on the folded path, and its Hornresp tab gives TH or TH1 values.

Hornresp export · TH or TH1

The front tap must be at S2 and the rear tap at S3 or S4; otherwise the export stops with that reason. Taps at either end of the path are refused. The two faces need opposite polarities.

Checked against Hornresp

22 native Hornresp cases of this type are re-simulated in the regression tests. 19 of 19 agreement checks meet their tolerances, and 3 more track stuffing-model differences without claiming agreement.

Folding a horn into a cabinet · Exporting to Hornresp

Try it

The example opens with this type already set up, so you can change it and watch the graphs follow.

Open the tapped horn example