Scan-Speak 15W/4434G00
Best box: 2.2 L bass reflex tuned to 77.3 Hz · F3 90.0 Hz
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Comparable 5.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Scan-Speak 15W/4434G00 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
- The textbook alignment (2.2 L at 73.6 Hz) would need a 45.8 cm port; the recommendation is retuned to 2.2 L at 77.3 Hz so the port can be built.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 2.2 Liters |
| Tuning Frequency (Fb) | 77.3 Hz |
| F3 (-3 dB Cutoff) | 90.0 Hz |
| F6 / F10 Extension | 76.7 Hz / 65.3 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 41.2 cm |
| First Pipe Resonance | 418.0 Hz |
| Estimated MOL @ F3 | 102.5 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 1.2 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 142.1 Hz |
| F3 (-3 dB Cutoff) | 128.9 Hz |
| F6 / F10 Extension | 100.4 Hz / 76.6 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 43.0 Hz |
| Total Q (Qts) | 0.21 |
| Electrical Q (Qes) | 0.223 |
| Mechanical Q (Qms) | 3.69 |
| Equivalent Volume (Vas) | 12.8 Liters |
| Diaphragm Area (Sd) | 80.0 cm² |
| DC Resistance (Re) | 3.0 Ω |
| Efficiency Bandwidth Product (EBP) | 193.1 |
| Linear Excursion (Xmax) | 8.0 mm |
| Thermal Power (Pe) | 60.0 W |
| Nominal Diameter | 5.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Scan-Speak 15W/4434G00?
Load Forge's calculated alignment puts Scan-Speak 15W/4434G00 in a 2.2 liter vented enclosure tuned to 77.3 Hz, reaching an F3 cutoff of approximately 90.0 Hz.
Can Scan-Speak 15W/4434G00 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 1.2 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 128.9 Hz.
What port dimensions should be used for Scan-Speak 15W/4434G00 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 41.2 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
Embed this design card on DIYAudio, AVSForum, Reddit, or Facebook. It shows the calculated F3, MOL (when the power rating is published) and box parameters.
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