Versatile Load

MISCO 50-WB08-01

Best box: 1.9 L bass reflex tuned to 143.0 Hz · F3 130.6 Hz

Predicted SPL response of the MISCO 50-WB08-01 in the recommended 1.9 L bass reflex box versus the alternative — open it in the simulator Open and tweak this box live ↗

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⚠️ Engineering Notice for Builders

  • The textbook alignment (1.5 L at 158.9 Hz) would need a 12.0 cm port; the recommendation is retuned to 1.9 L at 143.0 Hz so the port can be built.
  • 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) 1.9 Liters
Tuning Frequency (Fb) 143.0 Hz
F3 (-3 dB Cutoff) 130.6 Hz
F6 / F10 Extension 125.5 Hz / 119.2 Hz
Port Inner Diameter ESTIMATED Ø 5.0 cm
Port Physical Length 11.6 cm
First Pipe Resonance 1486.0 Hz
Estimated MOL @ F3 91.1 dB SPL
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Sealed (Acoustic Suspension) — compromise

SUITS INFINITE / OPEN BAFFLE

With Qts 1.41 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.994; for a flat response this driver is better used on an infinite (IB) or open baffle.

Net Box Volume (Vb) 0.13 Liters
System Q (Qtc) 1.994 (above Butterworth: Qtc cannot fall below Qts (1.41))
System Resonance (Fc) 264.5 Hz
F3 (-3 dB Cutoff) 257.2 Hz
F6 / F10 Extension 228.5 Hz / 195.4 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 187.0 Hz
Total Q (Qts) 1.41
Electrical Q (Qes) 2.199
Mechanical Q (Qms) 3.93
Equivalent Volume (Vas) 0.1 Liters
Diaphragm Area (Sd) 12.6 cm²
DC Resistance (Re) 7.6 Ω
Efficiency Bandwidth Product (EBP) 85.0
Linear Excursion (Xmax) N/A mm
Thermal Power (Pe) 3.0 W
Nominal Diameter 2.0"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for MISCO 50-WB08-01?

Load Forge's calculated alignment puts MISCO 50-WB08-01 in a 1.9 liter vented enclosure tuned to 143.0 Hz, reaching an F3 cutoff of approximately 130.6 Hz.

Can MISCO 50-WB08-01 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 0.13 liters with a Qtc of 1.994 (above Butterworth: Qtc cannot fall below Qts (1.41)), the system exhibits an F3 of 257.2 Hz.

What port dimensions should be used for MISCO 50-WB08-01 to avoid port chuffing?

Xmax is not published for MISCO 50-WB08-01, so the port is an empirical estimate: a 5.0 cm diameter with a length of 11.6 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

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.

MISCO 50-WB08-01 Enclosure Card
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