PRV Audio 6MB100-4 6" Midbass Woofer Pair 4 Ohm
Best box: 5.4 L bass reflex tuned to 79.2 Hz · F3 124.2 Hz
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Comparable 6.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the PRV Audio 6MB100-4 6" Midbass Woofer Pair 4 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
- Limited linear excursion (Xmax: 2.75 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) | 5.4 Liters |
| Tuning Frequency (Fb) | 79.2 Hz |
| F3 (-3 dB Cutoff) | 124.2 Hz |
| F6 / F10 Extension | 108.4 Hz / 88.8 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 13.8 cm |
| First Pipe Resonance | 1246.0 Hz |
| Estimated MOL @ F3 | 111.2 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 1.1 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.556; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 6.8 Liters |
| System Q (Qtc) | 1.556 (above Butterworth: Qtc cannot fall below Qts (1.10)) |
| System Resonance (Fc) | 131.8 Hz |
| F3 (-3 dB Cutoff) | 109.0 Hz |
| F6 / F10 Extension | 94.7 Hz / 79.2 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 93.2 Hz |
| Total Q (Qts) | 1.1 |
| Electrical Q (Qes) | 1.36 |
| Mechanical Q (Qms) | 5.75 |
| Equivalent Volume (Vas) | 6.8 Liters |
| Diaphragm Area (Sd) | 143.0 cm² |
| DC Resistance (Re) | 3.8 Ω |
| Efficiency Bandwidth Product (EBP) | 68.5 |
| Linear Excursion (Xmax) | 2.8 mm |
| Thermal Power (Pe) | 100.0 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 PRV Audio 6MB100-4 6" Midbass Woofer Pair 4 Ohm?
Load Forge's calculated alignment puts PRV Audio 6MB100-4 6" Midbass Woofer Pair 4 Ohm in a 5.4 liter vented enclosure tuned to 79.2 Hz, reaching an F3 cutoff of approximately 124.2 Hz.
Can PRV Audio 6MB100-4 6" Midbass Woofer Pair 4 Ohm be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 6.8 liters with a Qtc of 1.556 (above Butterworth: Qtc cannot fall below Qts (1.10)), the system exhibits an F3 of 109.0 Hz.
What port dimensions should be used for PRV Audio 6MB100-4 6" Midbass Woofer Pair 4 Ohm to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 13.8 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
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