DS18 HOOL-X15.2DSPL
Best box: 58.0 L bass reflex tuned to 32.3 Hz · F3 29.1 Hz
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Comparable 15.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the DS18 HOOL-X15.2DSPL 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
- Xmax is not published, so the port size is an empirical estimate (area ≥ 12 in² per ft³ of net volume, minimum by driver size), not a displacement calculation. Check air velocity in Load Forge Studio.
- Port length (76.8 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) | 58.0 Liters |
| Tuning Frequency (Fb) | 32.3 Hz |
| F3 (-3 dB Cutoff) | 29.1 Hz |
| F6 / F10 Extension | 26.8 Hz / 24.2 Hz |
| Port Inner Diameter ESTIMATED | Ø 15.0 cm |
| Port Physical Length | 76.8 cm |
| First Pipe Resonance | 224.0 Hz |
| Estimated MOL @ F3 | 120.2 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 25.7 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 58.3 Hz |
| F3 (-3 dB Cutoff) | 59.0 Hz |
| F6 / F10 Extension | 43.2 Hz / 32.0 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 36.5 Hz |
| Total Q (Qts) | 0.438 |
| Electrical Q (Qes) | 0.475 |
| Mechanical Q (Qms) | 5.68 |
| Equivalent Volume (Vas) | 41.3 Liters |
| Diaphragm Area (Sd) | 754.8 cm² |
| DC Resistance (Re) | 1.9 Ω |
| Efficiency Bandwidth Product (EBP) | 77.0 |
| Linear Excursion (Xmax) | N/A mm |
| Thermal Power (Pe) | 4000.0 W |
| Nominal Diameter | 15.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for DS18 HOOL-X15.2DSPL?
Load Forge's calculated alignment puts DS18 HOOL-X15.2DSPL in a 58.0 liter vented enclosure tuned to 32.3 Hz, reaching an F3 cutoff of approximately 29.1 Hz.
Can DS18 HOOL-X15.2DSPL be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 25.7 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 59.0 Hz.
What port dimensions should be used for DS18 HOOL-X15.2DSPL to avoid port chuffing?
Xmax is not published for DS18 HOOL-X15.2DSPL, so the port is an empirical estimate: a 15.0 cm diameter with a length of 76.8 cm (area at least 12 in² per ft³ of net volume). Check the air velocity at your power level in Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
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