Vented Specialist

Peerless PRLTC6FC0004

Best box: 1.5 L bass reflex tuned to 121.5 Hz · F3 113.4 Hz

Predicted SPL response of the Peerless PRLTC6FC0004 in the recommended 1.5 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: 1.0 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) 1.5 Liters
Tuning Frequency (Fb) 121.5 Hz
F3 (-3 dB Cutoff) 113.4 Hz
F6 / F10 Extension 100.7 Hz / 90.7 Hz
Port Inner Diameter Ø 5.0 cm
Port Physical Length 23.0 cm
First Pipe Resonance 748.0 Hz
Estimated MOL @ F3 94.4 dB SPL
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Sealed (Acoustic Suspension) — compromise

SUITS INFINITE / OPEN BAFFLE

With Qts 0.92 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.301; for a flat response this driver is better used on an infinite (IB) or open baffle.

Net Box Volume (Vb) 0.57 Liters
System Q (Qtc) 1.301 (above Butterworth: Qtc cannot fall below Qts (0.92))
System Resonance (Fc) 202.2 Hz
F3 (-3 dB Cutoff) 160.1 Hz
F6 / F10 Extension 135.5 Hz / 110.8 Hz
Air Spring Linearity High (Zero port compression)
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Thiele/Small Parameters

Resonance (Fs) 143.0 Hz
Total Q (Qts) 0.92
Electrical Q (Qes) 1.224
Mechanical Q (Qms) 3.7
Equivalent Volume (Vas) 0.6 Liters
Diaphragm Area (Sd) 22.1 cm²
DC Resistance (Re) 3.2 Ω
Efficiency Bandwidth Product (EBP) 116.8
Linear Excursion (Xmax) 1.0 mm
Thermal Power (Pe) 20.0 W
Nominal Diameter 2.0"
Catalog Source Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for Peerless PRLTC6FC0004?

Load Forge's calculated alignment puts Peerless PRLTC6FC0004 in a 1.5 liter vented enclosure tuned to 121.5 Hz, reaching an F3 cutoff of approximately 113.4 Hz.

Can Peerless PRLTC6FC0004 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 0.57 liters with a Qtc of 1.301 (above Butterworth: Qtc cannot fall below Qts (0.92)), the system exhibits an F3 of 160.1 Hz.

What port dimensions should be used for Peerless PRLTC6FC0004 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 23.0 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.

Peerless PRLTC6FC0004 Enclosure Card
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