Dayton Audio RS180S-8 7" Reference Shielded Woofer 8 Ohm
Best box: 18.4 L bass reflex tuned to 39.7 Hz · F3 39.4 Hz
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Comparable 7.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Dayton Audio RS180S-8 7" Reference Shielded Woofer 8 Ohm 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) | 18.4 Liters |
| Tuning Frequency (Fb) | 39.7 Hz |
| F3 (-3 dB Cutoff) | 39.4 Hz |
| F6 / F10 Extension | 34.8 Hz / 30.5 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 16.7 cm |
| First Pipe Resonance | 1029.0 Hz |
| Estimated MOL @ F3 | 100.3 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 8.0 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 72.5 Hz |
| F3 (-3 dB Cutoff) | 73.2 Hz |
| F6 / F10 Extension | 55.3 Hz / 41.8 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 37.7 Hz |
| Total Q (Qts) | 0.36 |
| Electrical Q (Qes) | 0.479 |
| Mechanical Q (Qms) | 1.45 |
| Equivalent Volume (Vas) | 23.0 Liters |
| Diaphragm Area (Sd) | 124.7 cm² |
| DC Resistance (Re) | 6.4 Ω |
| Efficiency Bandwidth Product (EBP) | 78.7 |
| Linear Excursion (Xmax) | 6.0 mm |
| Thermal Power (Pe) | 60.0 W |
| Nominal Diameter | 7.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Dayton Audio RS180S-8 7" Reference Shielded Woofer 8 Ohm?
Load Forge's calculated alignment puts Dayton Audio RS180S-8 7" Reference Shielded Woofer 8 Ohm in a 18.4 liter vented enclosure tuned to 39.7 Hz, reaching an F3 cutoff of approximately 39.4 Hz.
Can Dayton Audio RS180S-8 7" Reference Shielded Woofer 8 Ohm be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 8.0 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 73.2 Hz.
What port dimensions should be used for Dayton Audio RS180S-8 7" Reference Shielded Woofer 8 Ohm to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 16.7 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
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