Scan-Speak 26W/4558T06
Best box: 49.1 L bass reflex tuned to 26.6 Hz · F3 27.2 Hz
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Comparable 10.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Scan-Speak 26W/4558T06 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 (49.1 L at 25.3 Hz) would need a 108.1 cm port; the recommendation is retuned to 49.1 L at 26.6 Hz so the port can be built.
- Port length (96.9 cm) exceeds a straight internal run; use an elbow bend, slotted vent or 3D folded duct to fit the enclosure.
Recommended Bass Reflex (Vented)
PORT NEEDS ELBOW / 3D| Net Box Volume (Vb) | 49.1 Liters |
| Tuning Frequency (Fb) | 26.6 Hz |
| F3 (-3 dB Cutoff) | 27.2 Hz |
| F6 / F10 Extension | 24.0 Hz / 20.9 Hz |
| Port Inner Diameter | Ø 12.5 cm |
| Port Physical Length | 96.9 cm |
| First Pipe Resonance | 177.0 Hz |
| Estimated MOL @ F3 | 104.7 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 22.5 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 47.1 Hz |
| F3 (-3 dB Cutoff) | 49.0 Hz |
| F6 / F10 Extension | 36.7 Hz / 27.6 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 21.0 Hz |
| Total Q (Qts) | 0.31 |
| Electrical Q (Qes) | 0.328 |
| Mechanical Q (Qms) | 5.56 |
| Equivalent Volume (Vas) | 94.4 Liters |
| Diaphragm Area (Sd) | 352.0 cm² |
| DC Resistance (Re) | 2.6 Ω |
| Efficiency Bandwidth Product (EBP) | 64.0 |
| Linear Excursion (Xmax) | 28.0 mm |
| Thermal Power (Pe) | 150.0 W |
| Nominal Diameter | 10.0" |
| 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 26W/4558T06?
Load Forge's calculated alignment puts Scan-Speak 26W/4558T06 in a 49.1 liter vented enclosure tuned to 26.6 Hz, reaching an F3 cutoff of approximately 27.2 Hz.
Can Scan-Speak 26W/4558T06 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 22.5 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 49.0 Hz.
What port dimensions should be used for Scan-Speak 26W/4558T06 to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 12.5 cm with a length of 96.9 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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