DS18 PRO-EXL108MB
Best box: 5.6 L bass reflex tuned to 132.0 Hz · F3 131.7 Hz
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Comparable 10.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the DS18 PRO-EXL108MB 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 (5.6 L at 94.3 Hz) would need a 64.9 cm port; the recommendation is retuned to 5.6 L at 132.0 Hz so the port can be built.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 5.6 Liters |
| Tuning Frequency (Fb) | 132.0 Hz |
| F3 (-3 dB Cutoff) | 131.7 Hz |
| F6 / F10 Extension | 119.2 Hz / 105.5 Hz |
| Port Inner Diameter | Ø 15.0 cm |
| Port Physical Length | 43.6 cm |
| First Pipe Resonance | 395.0 Hz |
| Estimated MOL @ F3 | 122.0 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 2.8 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 176.4 Hz |
| F3 (-3 dB Cutoff) | 163.5 Hz |
| F6 / F10 Extension | 126.8 Hz / 96.5 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 65.9 Hz |
| Total Q (Qts) | 0.256 |
| Electrical Q (Qes) | 0.265 |
| Mechanical Q (Qms) | 7.19 |
| Equivalent Volume (Vas) | 18.6 Liters |
| Diaphragm Area (Sd) | 324.3 cm² |
| DC Resistance (Re) | 5.47 Ω |
| Efficiency Bandwidth Product (EBP) | 248.3 |
| Linear Excursion (Xmax) | 10.0 mm |
| Thermal Power (Pe) | 600.0 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 DS18 PRO-EXL108MB?
Load Forge's calculated alignment puts DS18 PRO-EXL108MB in a 5.6 liter vented enclosure tuned to 132.0 Hz, reaching an F3 cutoff of approximately 131.7 Hz.
Can DS18 PRO-EXL108MB be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 2.8 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 163.5 Hz.
What port dimensions should be used for DS18 PRO-EXL108MB to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 15.0 cm with a length of 43.6 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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