Vented Specialist

Accuton C168-6-990 CELL

Best box: 1.8 L bass reflex tuned to 94.1 Hz · F3 111.5 Hz

Predicted SPL response of the Accuton C168-6-990 CELL in the recommended 1.8 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

  • Limited linear excursion (Xmax: 3.0 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.

Recommended Bass Reflex (Vented)

PORT BUILDABLE
Net Box Volume (Vb) 1.8 Liters
Tuning Frequency (Fb) 94.1 Hz
F3 (-3 dB Cutoff) 111.5 Hz
F6 / F10 Extension 94.2 Hz / 79.8 Hz
Port Inner Diameter Ø 5.0 cm
Port Physical Length 33.4 cm
First Pipe Resonance 516.0 Hz
Estimated MOL @ F3 107.5 dB SPL
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 1.0 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 181.5 Hz
F3 (-3 dB Cutoff) 153.7 Hz
F6 / F10 Extension 121.3 Hz / 93.0 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 55.0 Hz
Total Q (Qts) 0.21
Electrical Q (Qes) 0.22
Mechanical Q (Qms) 4.76
Equivalent Volume (Vas) 10.3 Liters
Diaphragm Area (Sd) 118.0 cm²
DC Resistance (Re) 5.4 Ω
Efficiency Bandwidth Product (EBP) 250.4
Linear Excursion (Xmax) 3.0 mm
Thermal Power (Pe) 120.0 W
Nominal Diameter 6.0"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for Accuton C168-6-990 CELL?

Load Forge's calculated alignment puts Accuton C168-6-990 CELL in a 1.8 liter vented enclosure tuned to 94.1 Hz, reaching an F3 cutoff of approximately 111.5 Hz.

Can Accuton C168-6-990 CELL be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 1.0 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 153.7 Hz.

What port dimensions should be used for Accuton C168-6-990 CELL to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 33.4 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.

Accuton C168-6-990 CELL Enclosure Card
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