Wolfram Audio Hg-12 V2
Best box: 9.1 L sealed · Fc 67.9 Hz · F3 69.4 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Wolfram Audio Hg-12 V2 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
- Straight vent would be 321.6 cm long: not physically buildable as a simple tube. Use a passive radiator, a folded slot port or model a 3D folded duct in Load Forge Studio.
Textbook Bass Reflex — not recommended
PORT NOT BUILDABLE| Net Box Volume (Vb) | 20.7 Liters |
| Tuning Frequency (Fb) | 36.8 Hz |
| F3 (-3 dB Cutoff) | 37.1 Hz |
| F6 / F10 Extension | 32.5 Hz / 28.4 Hz |
| Port Inner Diameter | Ø 20.0 cm |
| Port Physical Length | 321.6 cm |
| First Pipe Resonance | 53.0 Hz |
| Estimated MOL @ F3 | 109.7 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 9.1 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 67.9 Hz |
| F3 (-3 dB Cutoff) | 69.4 Hz |
| F6 / F10 Extension | 52.3 Hz / 39.4 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 34.9 Hz |
| Total Q (Qts) | 0.36 |
| Electrical Q (Qes) | 0.431 |
| Mechanical Q (Qms) | 2.18 |
| Equivalent Volume (Vas) | 25.9 Liters |
| Diaphragm Area (Sd) | 530.0 cm² |
| DC Resistance (Re) | 1.0 Ω |
| Efficiency Bandwidth Product (EBP) | 80.9 |
| Linear Excursion (Xmax) | 37.0 mm |
| Thermal Power (Pe) | 500.0 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 Wolfram Audio Hg-12 V2?
A simple ported box is not recommended for Wolfram Audio Hg-12 V2: the textbook alignment (20.7 liters tuned to 36.8 Hz) needs a 321.6 cm port, and no nearby retune stays buildable without a bass hump. A sealed box, a passive radiator or a folded duct is the practical choice.
Can Wolfram Audio Hg-12 V2 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 9.1 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 69.4 Hz.
What port dimensions should be used for Wolfram Audio Hg-12 V2 to avoid port chuffing?
A straight 20.0 cm port would need 321.6 cm of length, which does not fit a practical cabinet. Use a passive radiator or a folded/3D duct instead of a straight tube.
Shareable Acoustic Card for Forums & Social Media
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