Oberton 6NMB200V
Best box: 3.2 L bass reflex tuned to 108.9 Hz · F3 116.0 Hz
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Comparable 6.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Oberton 6NMB200V 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) | 3.2 Liters |
| Tuning Frequency (Fb) | 108.9 Hz |
| F3 (-3 dB Cutoff) | 116.0 Hz |
| F6 / F10 Extension | 100.9 Hz / 87.2 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 23.8 cm |
| First Pipe Resonance | 722.0 Hz |
| Estimated MOL @ F3 | 113.0 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 1.6 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 202.4 Hz |
| F3 (-3 dB Cutoff) | 188.0 Hz |
| F6 / F10 Extension | 144.3 Hz / 109.1 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 79.0 Hz |
| Total Q (Qts) | 0.267 |
| Electrical Q (Qes) | 0.28 |
| Mechanical Q (Qms) | 5.82 |
| Equivalent Volume (Vas) | 9.5 Liters |
| Diaphragm Area (Sd) | 139.0 cm² |
| DC Resistance (Re) | 10.7 Ω |
| Efficiency Bandwidth Product (EBP) | 282.3 |
| Linear Excursion (Xmax) | 4.5 mm |
| Thermal Power (Pe) | 200.0 W |
| Nominal Diameter | 6.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Oberton 6NMB200V?
Load Forge's calculated alignment puts Oberton 6NMB200V in a 3.2 liter vented enclosure tuned to 108.9 Hz, reaching an F3 cutoff of approximately 116.0 Hz.
Can Oberton 6NMB200V be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 1.6 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 188.0 Hz.
What port dimensions should be used for Oberton 6NMB200V to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 23.8 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
Embed this design card on DIYAudio, AVSForum, Reddit, or Facebook. It shows the calculated F3, MOL (when the power rating is published) and box parameters.
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