Passive Radiator / Folded Port

Wavecor TW022TU01

Best box: 0.008 L sealed · Fc 1166.7 Hz · F3 968.4 Hz

Predicted SPL response of the Wavecor TW022TU01 in the recommended 0.008 L sealed box versus the alternative — open it in the simulator Open and tweak this box live ↗

Will it fit your requirements?

Check the Wavecor TW022TU01 against your space and targets — instant, no sign-up.

Design a box for this driver Box Design with the TW022TU01 and its T/S already loaded Find alternatives Bass Match ranks similar drivers against the TW022TU01 in the same box

Free, no sign-up to simulate · a free account saves your design

⚠️ Engineering Notice for Builders

  • Straight vent would be -1.5 cm long: not physically buildable as a simple tube. Use a passive radiator, a folded slot port or model a 3D folded duct in Load Forge Studio.
  • Limited linear excursion (Xmax: 0.35 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.

Textbook Bass Reflex — not recommended

PORT NOT BUILDABLE
Net Box Volume (Vb) 1.5 Liters
Tuning Frequency (Fb) 701.2 Hz
F3 (-3 dB Cutoff) 666.4 Hz
F6 / F10 Extension 642.9 Hz / 611.1 Hz
Port Inner Diameter Ø 20.0 cm
Port Physical Length No real tube length at this tuning — use a passive radiator
First Pipe Resonance 0.0 Hz
Estimated MOL @ F3 86.1 dB SPL
⚠️ Port feasibility: a straight tube would need -1.5 cm and cannot fit in a practical cabinet, and no nearby retune stays buildable without a bass hump. Prefer the sealed alignment, a passive radiator, or a 3D folded duct in Load Forge Studio.
Simulate This Reflex Box in App →

Sealed (Acoustic Suspension) — compromise

SUITS INFINITE / OPEN BAFFLE

With Qts 0.81 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.146; for a flat response this driver is better used on an infinite (IB) or open baffle.

Net Box Volume (Vb) 0.008 Liters
System Q (Qtc) 1.146 (above Butterworth: Qtc cannot fall below Qts (0.81))
System Resonance (Fc) 1166.7 Hz
F3 (-3 dB Cutoff) 968.4 Hz
F6 / F10 Extension 812.2 Hz / 659.1 Hz
Air Spring Linearity High (Zero port compression)
Simulate This Sealed Box in App →

Thiele/Small Parameters

Resonance (Fs) 825.0 Hz
Total Q (Qts) 0.81
Electrical Q (Qes) 1.868
Mechanical Q (Qms) 1.43
Equivalent Volume (Vas) 0.0 Liters
Diaphragm Area (Sd) 6.1 cm²
DC Resistance (Re) 3.6 Ω
Efficiency Bandwidth Product (EBP) 441.6
Linear Excursion (Xmax) 0.3 mm
Thermal Power (Pe) N/A W
Nominal Diameter 1.0"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for Wavecor TW022TU01?

A simple ported box is not recommended for Wavecor TW022TU01: the textbook alignment (1.5 liters tuned to 701.2 Hz) needs a -1.5 cm port, and no nearby retune stays buildable without a bass hump. A sealed box, a passive radiator or a folded duct is the practical choice.

Can Wavecor TW022TU01 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 0.008 liters with a Qtc of 1.146 (above Butterworth: Qtc cannot fall below Qts (0.81)), the system exhibits an F3 of 968.4 Hz.

What port dimensions should be used for Wavecor TW022TU01 to avoid port chuffing?

A straight 20.0 cm port would need -1.5 cm of length, which does not fit a practical cabinet. Use a passive radiator or a folded/3D duct instead of a straight tube.

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.

Wavecor TW022TU01 Enclosure Card
Download SVG Card 📥

Not sure if TW022TU01 fits your physical space?

Don't force a driver into the wrong box. Use Bass Match to calculate which of 8,000+ catalog drivers delivers the highest SPL, lowest F3, and cleanest port air velocity for your exact trunk or room dimensions.

Run Bass Match for Your Space