midsim
15" Mid Horn

Specifications
| Topology | front loaded horn |
|---|---|
| Ways | 1-way |
| Net volume | 160 L |
| Dimensions (H×W×D) | 760 × 820 × 620 mm |
| Footprint | 5084 cm² |
| Weight | 52 kg |
| F3 | 120 Hz |
| Max SPL | 131 dB |
| Max SPL (excursion-limited) | 128 dB |
| Max SPL (thermal-limited) | 132 dB |
| Sensitivity | 104 dB |
| Impedance minimum | 6.8 Ω |
| Recommended crossover | 1200 Hz |
| Recommended power | 700 W |
| Power handling (AES) | 700 W |
| Power handling (program) | 1400 W |
| Output density | 109 dB/size |
| Plywood sheets | 2× 2440×1220 mm |
| Connectors | speakON NL4 |
Drivers (1)
| Model | Format | Impedance | Fs | Detail | Pe | Sensitivity |
|---|---|---|---|---|---|---|
| B&C 15DS115 | 15" | 8 Ω | 33 Hz | Qts 0.17 · Vas 94 L · Xmax 16.5 mm | 1600 W | 97 dB |
Measurements / Simulations
Images


Sources
- design.txt · hornresp
Notes
Build notes
Sample data: values are illustrative, not measured.
15“ front-loaded horn covering the mid band from roughly 120 Hz to 3-4 kHz. Horn loading buys ~10 dB efficiency over a direct-radiator midrange at the same power, which is why it is common in high-output systems.
Horn geometry
- Mouth area: ~3600 cm²
- Throat area: matched to driver Sd
- Expansion ratio: ~1.3 per section
- Folded path inside the cabinet to keep depth manageable
Usage
Cross to a sub or kickbin below (~80-120 Hz) and to a high-frequency horn or top above (~1.2 kHz, a 15“ cone beams hard past that, whatever the horn does). High-pass at 100 Hz is strongly recommended to protect the driver.