Vented Specialist

Peerless PRLSDS135F25CP0204

Best box: 8.5 L bass reflex tuned to 40.2 Hz · F3 46.0 Hz

Predicted SPL response of the Peerless PRLSDS135F25CP0204 in the recommended 8.5 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) 8.5 Liters
Tuning Frequency (Fb) 40.2 Hz
F3 (-3 dB Cutoff) 46.0 Hz
F6 / F10 Extension 35.3 Hz / 30.5 Hz
Port Inner Diameter Ø 5.0 cm
Port Physical Length 39.3 cm
First Pipe Resonance 438.0 Hz
Estimated MOL @ F3 105.4 dB SPL
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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING
Net Box Volume (Vb) 7.9 Liters
System Q (Qtc) 0.707 (Butterworth)
System Resonance (Fc) 71.1 Hz
F3 (-3 dB Cutoff) 71.0 Hz
F6 / F10 Extension 53.9 Hz / 40.8 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 55.0 Hz
Total Q (Qts) 0.54
Electrical Q (Qes) 0.599
Mechanical Q (Qms) 5.47
Equivalent Volume (Vas) 5.7 Liters
Diaphragm Area (Sd) 89.9 cm²
DC Resistance (Re) 2.8 Ω
Efficiency Bandwidth Product (EBP) 91.8
Linear Excursion (Xmax) 7.0 mm
Thermal Power (Pe) N/A W
Nominal Diameter 5.24"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for Peerless PRLSDS135F25CP0204?

Load Forge's calculated alignment puts Peerless PRLSDS135F25CP0204 in a 8.5 liter vented enclosure tuned to 40.2 Hz, reaching an F3 cutoff of approximately 46.0 Hz.

Can Peerless PRLSDS135F25CP0204 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 7.9 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 71.0 Hz.

What port dimensions should be used for Peerless PRLSDS135F25CP0204 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 39.3 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.

Shareable Acoustic Card for Forums & Social Media

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Peerless PRLSDS135F25CP0204 Enclosure Card
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