Beyma LOUDSPEAKER 12MCB700 8 OH
Best box: 20.8 L bass reflex tuned to 69.6 Hz · F3 74.8 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Beyma LOUDSPEAKER 12MCB700 8 OH 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) | 20.8 Liters |
| Tuning Frequency (Fb) | 69.6 Hz |
| F3 (-3 dB Cutoff) | 74.8 Hz |
| F6 / F10 Extension | 64.8 Hz / 55.9 Hz |
| Port Inner Diameter | Ø 12.5 cm |
| Port Physical Length | 27.6 cm |
| First Pipe Resonance | 624.0 Hz |
| Estimated MOL @ F3 | 120.7 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 10.2 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 127.6 Hz |
| F3 (-3 dB Cutoff) | 121.2 Hz |
| F6 / F10 Extension | 93.3 Hz / 70.7 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 51.0 Hz |
| Total Q (Qts) | 0.27 |
| Electrical Q (Qes) | 0.29 |
| Mechanical Q (Qms) | 3.9 |
| Equivalent Volume (Vas) | 59.5 Liters |
| Diaphragm Area (Sd) | 550.0 cm² |
| DC Resistance (Re) | 5.4 Ω |
| Efficiency Bandwidth Product (EBP) | 175.8 |
| Linear Excursion (Xmax) | 7.0 mm |
| Thermal Power (Pe) | 700.0 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 Beyma LOUDSPEAKER 12MCB700 8 OH?
Load Forge's calculated alignment puts Beyma LOUDSPEAKER 12MCB700 8 OH in a 20.8 liter vented enclosure tuned to 69.6 Hz, reaching an F3 cutoff of approximately 74.8 Hz.
Can Beyma LOUDSPEAKER 12MCB700 8 OH be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 10.2 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 121.2 Hz.
What port dimensions should be used for Beyma LOUDSPEAKER 12MCB700 8 OH to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 12.5 cm with a length of 27.6 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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