Horns · Guide

Shape a horn in the Horn Editor

Open it

• Choose the Horn Design layout. It is pinned as a tab beside the layout switcher above the graphs, and it is in the switcher’s Layouts menu. It puts the Horn Editor beside SPL, impedance, excursion and group delay.
• Or add the Horn Editor tile from the graph picker to any layout.
• Open horn schematic in the horn card adds the Schematic tile, which draws the whole design, chambers and outputs included.

The path bar

A small bar sits inside the top of the drawing. From left to right:

• Horn type: the same choice as in the horn card. Each option says what the diaphragm faces connect to.
• ⓘ: how the current type is connected, the editing gestures, and a link to that type’s page in these docs.
• The Paraflex subtype, PH1 to PH4, for Paraflex horns.
• Path chips, when the horn has more than one path: Front and Rear for compound horns, Main and Stub for stubbed horns, Main and H5–H7 for PH1 and PH2, and Main, H5–H6 and Adapter H7 for PH3 and PH4. Each chip shows its path’s length; click one to edit that path.

The tile’s own title bar has Fold into cabinet, which opens the Fold tile. It is disabled for horn types that don’t fold yet. Folding a horn.

Gestures

• Hover a span to see its flare, its stuffing toggle, and the buttons to add a span or remove it.
• Click a span’s H label to switch its flare to the next of conical, exponential and parabolic.
• The + at a station inserts a span there, and the one past the mouth adds a span at the end.
• Hover outside the horn to see its overall length and height.
• Click any value to type it.
• Drag an arrow or a divider between spans to reshape the path.
• Drag a driver or tap marker to move it along the path.
• Drag a stuffing flag or the stuffing itself to resize or slide it, and drag its resistivity chip up or down to change the material. Stuffing.

Markers by horn type

The same values as fields

The horn card in the enclosure panel lists every path with typed fields, which is quicker when you already know the numbers.

Throat diameter

Where the path starts. A closed stub calls it the Junction diameter.

Segments

1 to 8 spans per path; Add appends one. Each span has a flare, a Length · cm and an End Ø · cm.

Stuffing

None or Fibrous fill, with Resistivity, Start and End for each span.

Readouts

The path’s Length, Mouth Ø, Area ratio and Mode spacing.

Positions

Entries, taps and junctions as a percentage, measured from the start of the path toward its mouth.

Chambers

Volume in litres and, where the type allows it, a Cross-section in cm². Volume divided by cross-section sets the coupling path’s length.

Flares

Each span has its own flare, which sets how its area changes between its two stations:

• Conical: the radius changes in a straight line, so the walls are straight.
• Exponential: the area grows by the same ratio over each equal step along the span. This is the default for a new span.
• Parabolic: the area grows in a straight line along the span.

Spans run from 2 cm to 6 m long, with an area from 5 cm² to 2 m² at each station. Hornresp export maps the flares to its own Con, Exp and Par and never approximates one with another.