Peerless XXLS-P830845 12" Nomex Cone Subwoofer 8 Ohm
Best box: 179.2 L bass reflex tuned to 20.5 Hz · F3 21.2 Hz
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Comparable 12.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Peerless XXLS-P830845 12" Nomex Cone Subwoofer 8 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
- Large enclosure volume (179.2 L) requires extensive internal matrix bracing to prevent panel resonance.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 179.2 Liters |
| Tuning Frequency (Fb) | 20.5 Hz |
| F3 (-3 dB Cutoff) | 21.2 Hz |
| F6 / F10 Extension | 17.6 Hz / 15.5 Hz |
| Port Inner Diameter | Ø 10.0 cm |
| Port Physical Length | 24.1 cm |
| First Pipe Resonance | 713.0 Hz |
| Estimated MOL @ F3 | 107.6 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 140.8 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 35.8 Hz |
| F3 (-3 dB Cutoff) | 36.6 Hz |
| F6 / F10 Extension | 27.5 Hz / 20.8 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 27.0 Hz |
| Total Q (Qts) | 0.52 |
| Electrical Q (Qes) | 0.554 |
| Mechanical Q (Qms) | 8.55 |
| Equivalent Volume (Vas) | 119.5 Liters |
| Diaphragm Area (Sd) | 490.9 cm² |
| DC Resistance (Re) | 5.66 Ω |
| Efficiency Bandwidth Product (EBP) | 48.8 |
| Linear Excursion (Xmax) | 12.5 mm |
| Thermal Power (Pe) | 175.0 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 Peerless XXLS-P830845 12" Nomex Cone Subwoofer 8 Ohm?
Load Forge's calculated alignment puts Peerless XXLS-P830845 12" Nomex Cone Subwoofer 8 Ohm in a 179.2 liter vented enclosure tuned to 20.5 Hz, reaching an F3 cutoff of approximately 21.2 Hz.
Can Peerless XXLS-P830845 12" Nomex Cone Subwoofer 8 Ohm be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 140.8 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 36.6 Hz.
What port dimensions should be used for Peerless XXLS-P830845 12" Nomex Cone Subwoofer 8 Ohm to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 10.0 cm with a length of 24.1 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
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Not sure if XXLS-P830845 12" Nomex Cone Subwoofer 8 Ohm fits your physical space?
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