Supravox 215 Héritage bicône Haut-parleur large-bande 25W / 96,5dB / 8 Ohms
Best box: 52.0 L bass reflex tuned to 51.0 Hz · F3 66.0 Hz
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Comparable 9.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Supravox 215 Héritage bicône Haut-parleur large-bande 25W / 96,5dB / 8 Ohms does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
⚠️ Engineering Notice for Builders
- Limited linear excursion (Xmax: 3.2 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 52.0 Liters |
| Tuning Frequency (Fb) | 51.0 Hz |
| F3 (-3 dB Cutoff) | 66.0 Hz |
| F6 / F10 Extension | 54.1 Hz / 42.5 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 3.2 cm |
| First Pipe Resonance | 5398.0 Hz |
| Estimated MOL @ F3 | 110.3 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 189.3 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 63.4 Hz |
| F3 (-3 dB Cutoff) | 63.3 Hz |
| F6 / F10 Extension | 48.1 Hz / 36.5 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 60.0 Hz |
| Total Q (Qts) | 0.61 |
| Electrical Q (Qes) | 0.743 |
| Mechanical Q (Qms) | 3.4 |
| Equivalent Volume (Vas) | 65.0 Liters |
| Diaphragm Area (Sd) | 263.0 cm² |
| DC Resistance (Re) | 5.5 Ω |
| Efficiency Bandwidth Product (EBP) | 80.7 |
| Linear Excursion (Xmax) | 3.2 mm |
| Thermal Power (Pe) | N/A W |
| Nominal Diameter | 9.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Supravox 215 Héritage bicône Haut-parleur large-bande 25W / 96,5dB / 8 Ohms?
Load Forge's calculated alignment puts Supravox 215 Héritage bicône Haut-parleur large-bande 25W / 96,5dB / 8 Ohms in a 52.0 liter vented enclosure tuned to 51.0 Hz, reaching an F3 cutoff of approximately 66.0 Hz.
Can Supravox 215 Héritage bicône Haut-parleur large-bande 25W / 96,5dB / 8 Ohms be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 189.3 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 63.3 Hz.
What port dimensions should be used for Supravox 215 Héritage bicône Haut-parleur large-bande 25W / 96,5dB / 8 Ohms to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 3.2 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
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