Horns · Horn types
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.
In the horn card#
The horn card in the enclosure panel lists each path as a row: click one to open that path in the Horn Editor. The card also sets:
| Control | What it sets |
|---|---|
| Throat chamber | Volume, and its Cross-section under Advanced, for a front coupling chamber. |
In the Horn Editor#
The path itself is set on the Horn Editor tile. Drag it in the drawing, or switch the tile to Table to type each value:
| Control | What it sets |
|---|---|
| Main horn | The area at the closed end, then up to eight spans, each with a Flare, a Length and the Area where it ends. |
| Driver marker | Where the front of the cone enters: the front entry position, in cm from the closed end toward the mouth. |
| Rear tap marker | The same, for the back of the cone. |
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.
- 6 % · 15 cm−3 dB 37 Hz
- 14 % · 35 cm−3 dB 37 Hz
- 30 % · 75 cm−3 dB 37 Hz
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.
Try it#
To keep going, open the example in the simulator. It opens with this type already set up, so you can change it and watch the graphs follow.
Ask your AI#
Ask your AI
Using 00 Simulator, open my tapped horn and try moving the front entry position to 10 %, 14 % and 25 %. Simulate each at 100 W without saving, then show me SPL and excursion and tell me which keeps the cleanest response above the band.
Connect your assistant so it can open your designs.