Alphasonik NSW408
Best box: 20.1 L bass reflex tuned to 33.1 Hz · F3 34.8 Hz
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Comparable 8.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Alphasonik NSW408 does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 20.1 Liters |
| Tuning Frequency (Fb) | 33.1 Hz |
| F3 (-3 dB Cutoff) | 34.8 Hz |
| F6 / F10 Extension | 28.6 Hz / 25.0 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 23.2 cm |
| First Pipe Resonance | 743.0 Hz |
| Estimated MOL @ F3 | 105.8 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 14.5 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 58.8 Hz |
| F3 (-3 dB Cutoff) | 59.9 Hz |
| F6 / F10 Extension | 45.4 Hz / 34.4 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 43.0 Hz |
| Total Q (Qts) | 0.51 |
| Electrical Q (Qes) | 0.562 |
| Mechanical Q (Qms) | 5.49 |
| Equivalent Volume (Vas) | 13.4 Liters |
| Diaphragm Area (Sd) | 188.7 cm² |
| DC Resistance (Re) | 1.8 Ω |
| Efficiency Bandwidth Product (EBP) | 76.5 |
| Linear Excursion (Xmax) | 8.0 mm |
| Thermal Power (Pe) | 250.0 W |
| Nominal Diameter | 8.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Alphasonik NSW408?
Load Forge's calculated alignment puts Alphasonik NSW408 in a 20.1 liter vented enclosure tuned to 33.1 Hz, reaching an F3 cutoff of approximately 34.8 Hz.
Can Alphasonik NSW408 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 14.5 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 59.9 Hz.
What port dimensions should be used for Alphasonik NSW408 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 23.2 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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