Wavecor SW223BD02 8-3/4" Black Aluminum Cone Subwoofer 4 Ohm
Best box: 30.6 L bass reflex tuned to 23.0 Hz · F3 22.0 Hz
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Comparable 8.75" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Wavecor SW223BD02 8-3/4" Black Aluminum Cone Subwoofer 4 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) | 30.6 Liters |
| Tuning Frequency (Fb) | 23.0 Hz |
| F3 (-3 dB Cutoff) | 22.0 Hz |
| F6 / F10 Extension | 19.6 Hz / 17.4 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 32.8 cm |
| First Pipe Resonance | 525.0 Hz |
| Estimated MOL @ F3 | 101.2 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 13.3 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 42.1 Hz |
| F3 (-3 dB Cutoff) | 42.6 Hz |
| F6 / F10 Extension | 31.9 Hz / 24.0 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 24.0 Hz |
| Total Q (Qts) | 0.4 |
| Electrical Q (Qes) | 0.416 |
| Mechanical Q (Qms) | 10.7 |
| Equivalent Volume (Vas) | 28.3 Liters |
| Diaphragm Area (Sd) | 206.0 cm² |
| DC Resistance (Re) | 3.5 Ω |
| Efficiency Bandwidth Product (EBP) | 57.8 |
| Linear Excursion (Xmax) | 10.7 mm |
| Thermal Power (Pe) | 200.0 W |
| Nominal Diameter | 8.75" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Wavecor SW223BD02 8-3/4" Black Aluminum Cone Subwoofer 4 Ohm?
Load Forge's calculated alignment puts Wavecor SW223BD02 8-3/4" Black Aluminum Cone Subwoofer 4 Ohm in a 30.6 liter vented enclosure tuned to 23.0 Hz, reaching an F3 cutoff of approximately 22.0 Hz.
Can Wavecor SW223BD02 8-3/4" Black Aluminum Cone Subwoofer 4 Ohm be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 13.3 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 42.6 Hz.
What port dimensions should be used for Wavecor SW223BD02 8-3/4" Black Aluminum Cone Subwoofer 4 Ohm to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 32.8 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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