Wavecor SW182BD04 7" Balanced Drive Black Aluminum Cone Subwoofer 8 Ohm
Best box: 19.1 L bass reflex tuned to 29.7 Hz · F3 28.9 Hz
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Comparable 7.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Wavecor SW182BD04 7" Balanced Drive Black Aluminum 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.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 19.1 Liters |
| Tuning Frequency (Fb) | 29.7 Hz |
| F3 (-3 dB Cutoff) | 28.9 Hz |
| F6 / F10 Extension | 25.2 Hz / 22.3 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 31.4 cm |
| First Pipe Resonance | 548.0 Hz |
| Estimated MOL @ F3 | 100.8 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 11.8 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 53.1 Hz |
| F3 (-3 dB Cutoff) | 54.5 Hz |
| F6 / F10 Extension | 40.9 Hz / 30.7 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 37.2 Hz |
| Total Q (Qts) | 0.49 |
| Electrical Q (Qes) | 0.51 |
| Mechanical Q (Qms) | 12.6 |
| Equivalent Volume (Vas) | 12.7 Liters |
| Diaphragm Area (Sd) | 131.0 cm² |
| DC Resistance (Re) | 6.4 Ω |
| Efficiency Bandwidth Product (EBP) | 73.0 |
| Linear Excursion (Xmax) | 7.0 mm |
| Thermal Power (Pe) | 125.0 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 Wavecor SW182BD04 7" Balanced Drive Black Aluminum Cone Subwoofer 8 Ohm?
Load Forge's calculated alignment puts Wavecor SW182BD04 7" Balanced Drive Black Aluminum Cone Subwoofer 8 Ohm in a 19.1 liter vented enclosure tuned to 29.7 Hz, reaching an F3 cutoff of approximately 28.9 Hz.
Can Wavecor SW182BD04 7" Balanced Drive Black Aluminum Cone Subwoofer 8 Ohm be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 11.8 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 54.5 Hz.
What port dimensions should be used for Wavecor SW182BD04 7" Balanced Drive Black Aluminum Cone Subwoofer 8 Ohm to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 31.4 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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