Versatile Load

REDCATT DR-8-006-4R-B2-C0001

Best box: 32.2 L bass reflex tuned to 29.5 Hz · F3 31.0 Hz

Predicted SPL response of the REDCATT DR-8-006-4R-B2-C0001 in the recommended 32.2 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) 32.2 Liters
Tuning Frequency (Fb) 29.5 Hz
F3 (-3 dB Cutoff) 31.0 Hz
F6 / F10 Extension 25.5 Hz / 22.3 Hz
Port Inner Diameter Ø 5.0 cm
Port Physical Length 17.4 cm
First Pipe Resonance 987.0 Hz
Estimated MOL @ F3 108.9 dB SPL
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 25.3 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 52.2 Hz
F3 (-3 dB Cutoff) 53.5 Hz
F6 / F10 Extension 40.2 Hz / 30.3 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 39.0 Hz
Total Q (Qts) 0.52
Electrical Q (Qes) 0.575
Mechanical Q (Qms) 5.4
Equivalent Volume (Vas) 21.5 Liters
Diaphragm Area (Sd) 201.1 cm²
DC Resistance (Re) 3.6 Ω
Efficiency Bandwidth Product (EBP) 67.8
Linear Excursion (Xmax) 6.1 mm
Thermal Power (Pe) N/A W
Nominal Diameter 8.0"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for REDCATT DR-8-006-4R-B2-C0001?

Load Forge's calculated alignment puts REDCATT DR-8-006-4R-B2-C0001 in a 32.2 liter vented enclosure tuned to 29.5 Hz, reaching an F3 cutoff of approximately 31.0 Hz.

Can REDCATT DR-8-006-4R-B2-C0001 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 25.3 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 53.5 Hz.

What port dimensions should be used for REDCATT DR-8-006-4R-B2-C0001 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 17.4 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.

REDCATT DR-8-006-4R-B2-C0001 Enclosure Card
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