Visaton B 200
Best box: 81.6 L bass reflex tuned to 34.0 Hz · F3 47.3 Hz
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Comparable 8.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Visaton B 200 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: 3.5 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) | 81.6 Liters |
| Tuning Frequency (Fb) | 34.0 Hz |
| F3 (-3 dB Cutoff) | 47.3 Hz |
| F6 / F10 Extension | 39.5 Hz / 30.8 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 2.7 cm |
| First Pipe Resonance | 6456.0 Hz |
| Estimated MOL @ F3 | 102.0 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.75 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.061; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 102.0 Liters |
| System Q (Qtc) | 1.061 (above Butterworth: Qtc cannot fall below Qts (0.75)) |
| System Resonance (Fc) | 56.6 Hz |
| F3 (-3 dB Cutoff) | 45.1 Hz |
| F6 / F10 Extension | 37.3 Hz / 30.0 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 40.0 Hz |
| Total Q (Qts) | 0.75 |
| Electrical Q (Qes) | 0.824 |
| Mechanical Q (Qms) | 8.39 |
| Equivalent Volume (Vas) | 102.0 Liters |
| Diaphragm Area (Sd) | 214.0 cm² |
| DC Resistance (Re) | 5.0 Ω |
| Efficiency Bandwidth Product (EBP) | 48.6 |
| Linear Excursion (Xmax) | 3.5 mm |
| Thermal Power (Pe) | 40.0 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 Visaton B 200?
Load Forge's calculated alignment puts Visaton B 200 in a 81.6 liter vented enclosure tuned to 34.0 Hz, reaching an F3 cutoff of approximately 47.3 Hz.
Can Visaton B 200 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 102.0 liters with a Qtc of 1.061 (above Butterworth: Qtc cannot fall below Qts (0.75)), the system exhibits an F3 of 45.1 Hz.
What port dimensions should be used for Visaton B 200 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 2.7 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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