MISCO 165-WF04-05
Best box: 4.5 L bass reflex tuned to 59.5 Hz · F3 85.3 Hz
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Comparable 6.5" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the MISCO 165-WF04-05 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.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 4.5 Liters |
| Tuning Frequency (Fb) | 59.5 Hz |
| F3 (-3 dB Cutoff) | 85.3 Hz |
| F6 / F10 Extension | 70.1 Hz / 53.3 Hz |
| Port Inner Diameter ESTIMATED | Ø 5.0 cm |
| Port Physical Length | 33.4 cm |
| First Pipe Resonance | 515.0 Hz |
| Estimated MOL @ F3 | 102.7 dB SPL |
Sealed (Acoustic Suspension) — compromise
SUITS INFINITE / OPEN BAFFLEWith Qts 0.69 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 0.976; for a flat response this driver is better used on an infinite (IB) or open baffle.
| Net Box Volume (Vb) | 5.7 Liters |
| System Q (Qtc) | 0.976 (above Butterworth) |
| System Resonance (Fc) | 99.0 Hz |
| F3 (-3 dB Cutoff) | 84.7 Hz |
| F6 / F10 Extension | 69.3 Hz / 55.1 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 70.0 Hz |
| Total Q (Qts) | 0.69 |
| Electrical Q (Qes) | 0.749 |
| Mechanical Q (Qms) | 8.72 |
| Equivalent Volume (Vas) | 5.7 Liters |
| Diaphragm Area (Sd) | 136.9 cm² |
| DC Resistance (Re) | 3.7 Ω |
| Efficiency Bandwidth Product (EBP) | 93.4 |
| Linear Excursion (Xmax) | N/A mm |
| Thermal Power (Pe) | 50.0 W |
| Nominal Diameter | 6.5" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for MISCO 165-WF04-05?
Load Forge's calculated alignment puts MISCO 165-WF04-05 in a 4.5 liter vented enclosure tuned to 59.5 Hz, reaching an F3 cutoff of approximately 85.3 Hz.
Can MISCO 165-WF04-05 be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 5.7 liters with a Qtc of 0.976 (above Butterworth), the system exhibits an F3 of 84.7 Hz.
What port dimensions should be used for MISCO 165-WF04-05 to avoid port chuffing?
Xmax is not published for MISCO 165-WF04-05, so the port is an empirical estimate: a 5.0 cm diameter with a length of 33.4 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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