Visaton W 400 S 8 OHM
Best box: 976.5 L bass reflex tuned to 17.9 Hz · F3 16.7 Hz
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Comparable 15.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Visaton W 400 S 8 OHM 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
- Large enclosure volume (976.5 L) requires extensive internal matrix bracing to prevent panel resonance.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 976.5 Liters |
| Tuning Frequency (Fb) | 17.9 Hz |
| F3 (-3 dB Cutoff) | 16.7 Hz |
| F6 / F10 Extension | 15.0 Hz / 13.4 Hz |
| Port Inner Diameter | Ø 15.0 cm |
| Port Physical Length | 6.2 cm |
| First Pipe Resonance | 2772.0 Hz |
| Estimated MOL @ F3 | 112.2 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 556.7 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 30.1 Hz |
| F3 (-3 dB Cutoff) | 32.8 Hz |
| F6 / F10 Extension | 24.1 Hz / 17.9 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 22.0 Hz |
| Total Q (Qts) | 0.48 |
| Electrical Q (Qes) | 0.562 |
| Mechanical Q (Qms) | 3.29 |
| Equivalent Volume (Vas) | 651.0 Liters |
| Diaphragm Area (Sd) | 840.0 cm² |
| DC Resistance (Re) | 6.3 Ω |
| Efficiency Bandwidth Product (EBP) | 39.1 |
| Linear Excursion (Xmax) | 25.0 mm |
| Thermal Power (Pe) | 200.0 W |
| Nominal Diameter | 15.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Visaton W 400 S 8 OHM?
Load Forge's calculated alignment puts Visaton W 400 S 8 OHM in a 976.5 liter vented enclosure tuned to 17.9 Hz, reaching an F3 cutoff of approximately 16.7 Hz.
Can Visaton W 400 S 8 OHM be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 556.7 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 32.8 Hz.
What port dimensions should be used for Visaton W 400 S 8 OHM to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 15.0 cm with a length of 6.2 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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