SB Acoustics Satori MW13PNW-4 Bass-midwoofer
Best box: 0.085 L sealed · Fc 107.3 Hz · F3 105.3 Hz
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Comparable 8.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the SB Acoustics Satori MW13PNW-4 Bass-midwoofer 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
- Straight vent would be 226.6 cm long: not physically buildable as a simple tube. Use a passive radiator, a folded slot port or model a 3D folded duct in Load Forge Studio.
Textbook Bass Reflex — not recommended
PORT NOT BUILDABLE| Net Box Volume (Vb) | 1.5 Liters |
| Tuning Frequency (Fb) | 56.0 Hz |
| F3 (-3 dB Cutoff) | 52.6 Hz |
| F6 / F10 Extension | 50.0 Hz / 46.6 Hz |
| Port Inner Diameter | Ø 6.8 cm |
| Port Physical Length | 226.6 cm |
| First Pipe Resonance | 76.0 Hz |
| Estimated MOL @ F3 | 91.4 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 0.085 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 107.3 Hz |
| F3 (-3 dB Cutoff) | 105.3 Hz |
| F6 / F10 Extension | 80.4 Hz / 60.9 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 41.0 Hz |
| Total Q (Qts) | 0.27 |
| Electrical Q (Qes) | 0.291 |
| Mechanical Q (Qms) | 3.71 |
| Equivalent Volume (Vas) | 0.5 Liters |
| Diaphragm Area (Sd) | 220.0 cm² |
| DC Resistance (Re) | 3.8 Ω |
| Efficiency Bandwidth Product (EBP) | 140.8 |
| Linear Excursion (Xmax) | 5.0 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 SB Acoustics Satori MW13PNW-4 Bass-midwoofer?
A simple ported box is not recommended for SB Acoustics Satori MW13PNW-4 Bass-midwoofer: the textbook alignment (1.5 liters tuned to 56.0 Hz) needs a 226.6 cm port, and no nearby retune stays buildable without a bass hump. A sealed box, a passive radiator or a folded duct is the practical choice.
Can SB Acoustics Satori MW13PNW-4 Bass-midwoofer be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 0.085 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 105.3 Hz.
What port dimensions should be used for SB Acoustics Satori MW13PNW-4 Bass-midwoofer to avoid port chuffing?
A straight 6.8 cm port would need 226.6 cm of length, which does not fit a practical cabinet. Use a passive radiator or a folded/3D duct instead of a straight tube.
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