Audison Haut-Parleurs AVX6.5
Best box: 6.6 L bass reflex tuned to 57.8 Hz · F3 84.5 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Audison Haut-Parleurs AVX6.5 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: 3.0 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) | 6.6 Liters |
| Tuning Frequency (Fb) | 57.8 Hz |
| F3 (-3 dB Cutoff) | 84.5 Hz |
| F6 / F10 Extension | 70.3 Hz / 54.0 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 44.5 cm |
| First Pipe Resonance | 386.0 Hz |
| Estimated MOL @ F3 | 112.0 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.74 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.047; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 8.2 Liters |
| System Q (Qtc) | 1.047 (above Butterworth: Qtc cannot fall below Qts (0.74)) |
| System Resonance (Fc) | 96.2 Hz |
| F3 (-3 dB Cutoff) | 81.4 Hz |
| F6 / F10 Extension | 67.4 Hz / 54.2 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 68.0 Hz |
| Total Q (Qts) | 0.74 |
| Electrical Q (Qes) | 0.817 |
| Mechanical Q (Qms) | 7.84 |
| Equivalent Volume (Vas) | 8.2 Liters |
| Diaphragm Area (Sd) | 530.0 cm² |
| DC Resistance (Re) | 3.5 Ω |
| Efficiency Bandwidth Product (EBP) | 83.2 |
| Linear Excursion (Xmax) | 3.0 mm |
| Thermal Power (Pe) | 300.0 W |
| Nominal Diameter | 12.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Audison Haut-Parleurs AVX6.5?
Load Forge's calculated alignment puts Audison Haut-Parleurs AVX6.5 in a 6.6 liter vented enclosure tuned to 57.8 Hz, reaching an F3 cutoff of approximately 84.5 Hz.
Can Audison Haut-Parleurs AVX6.5 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 8.2 liters with a Qtc of 1.047 (above Butterworth: Qtc cannot fall below Qts (0.74)), the system exhibits an F3 of 81.4 Hz.
What port dimensions should be used for Audison Haut-Parleurs AVX6.5 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 44.5 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
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