Vented Specialist

Radian Audio 6CRN38LT6

Best box: 6.9 L bass reflex tuned to 88.6 Hz · F3 85.7 Hz

Predicted SPL response of the Radian Audio 6CRN38LT6 in the recommended 6.9 L bass reflex box versus the alternative — open it in the simulator Open and tweak this box live ↗

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Recommended Bass Reflex (Vented)

PORT BUILDABLE
Net Box Volume (Vb) 6.9 Liters
Tuning Frequency (Fb) 88.6 Hz
F3 (-3 dB Cutoff) 85.7 Hz
F6 / F10 Extension 76.6 Hz / 67.5 Hz
Port Inner Diameter Ø 6.8 cm
Port Physical Length 15.2 cm
First Pipe Resonance 1129.0 Hz
Estimated MOL @ F3 110.2 dB SPL
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 3.0 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 160.0 Hz
F3 (-3 dB Cutoff) 156.1 Hz
F6 / F10 Extension 117.9 Hz / 88.7 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 82.0 Hz
Total Q (Qts) 0.35
Electrical Q (Qes) 0.362
Mechanical Q (Qms) 11.0
Equivalent Volume (Vas) 9.3 Liters
Diaphragm Area (Sd) 138.0 cm²
DC Resistance (Re) 8.3 Ω
Efficiency Bandwidth Product (EBP) 226.8
Linear Excursion (Xmax) 5.0 mm
Thermal Power (Pe) 120.0 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 Radian Audio 6CRN38LT6?

Load Forge's calculated alignment puts Radian Audio 6CRN38LT6 in a 6.9 liter vented enclosure tuned to 88.6 Hz, reaching an F3 cutoff of approximately 85.7 Hz.

Can Radian Audio 6CRN38LT6 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 3.0 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 156.1 Hz.

What port dimensions should be used for Radian Audio 6CRN38LT6 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 6.8 cm with a length of 15.2 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.

Radian Audio 6CRN38LT6 Enclosure Card
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