What is the recommended ported (bass reflex) box volume for Beyma LOUDSPEAKER 6P200Fe 8 OH?

According to electroacoustic alignment calculations, Beyma LOUDSPEAKER 6P200Fe 8 OH performs optimally in a 3.5 liter vented enclosure tuned to 81.9 Hz, reaching an F3 cutoff of approximately 88.1 Hz.

Can Beyma LOUDSPEAKER 6P200Fe 8 OH be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 1.7 liters with a Qtc of 0.707, the system exhibits an F3 of 131.4 Hz with tight transient response and natural roll-off.

What port dimensions should be used for Beyma LOUDSPEAKER 6P200Fe 8 OH to avoid port chuffing?

To keep vent air velocity below turbulence limits at rated power, a minimum port diameter of 6.8 cm with a length of 41.5 cm is recommended.

Reflex Optimized

Beyma LOUDSPEAKER 6P200Fe 8 OH

Complete Thiele/Small parameters, optimized ported (bass reflex) and sealed enclosure designs, F3/F6/F10 cutoffs, and vent turbulence analysis calculated by Load Forge.

Estimated Retail

99.95 EUR

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Recommended Bass Reflex (Vented)

OPTIMIZED EXTENSION

Net Box Volume (Vb)	3.5 Liters
Tuning Frequency (Fb)	81.9 Hz
F3 (-3 dB Cutoff)	88.1 Hz
F6 / F10 Extension	77.6 Hz / 67.6 Hz
Port Inner Diameter	Ø 6.8 cm
Port Physical Length	41.5 cm
First Pipe Resonance	414.0 Hz
Estimated MOL @ F3	109.6 dB SPL

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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING

Net Box Volume (Vb)	1.7 Liters
System Q (Qtc)	0.707 (Butterworth Q=0.707)
System Resonance (Fc)	154.1 Hz
F3 (-3 dB Cutoff)	131.4 Hz
F6 / F10 Extension	101.6 Hz / 76.8 Hz
Air Spring Linearity	High (Zero port compression)

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Verified Thiele/Small Parameters

Resonance (Fs)	58.0 Hz
Total Q (Qts)	0.26
Electrical Q (Qes)	0.276
Mechanical Q (Qms)	4.6

Equivalent Volume (Vas)	11.1 Liters
Diaphragm Area (Sd)	135.0 cm²
DC Resistance (Re)	4.9 Ω
Efficiency Bandwidth Product (EBP)	210.5

Linear Excursion (Xmax)	5.0 mm
Thermal Power (Pe)	200.0 W
Nominal Diameter	6.5"
Catalog Source	Manufacturer Official Datasheet

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Beyma LOUDSPEAKER 6P200Fe 8 OH Enclosure Card

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[b]Beyma LOUDSPEAKER 6P200Fe 8 OH[/b] — 3.5L Bass Reflex tuned to 81.9Hz (F3: 88.1Hz). Designed with [url=https://loadforge.io]Load Forge[/url].

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