What is the recommended ported (bass reflex) box volume for Beyma LOUDSPEAKER 6P200Fe 16 OH?

According to electroacoustic alignment calculations, Beyma LOUDSPEAKER 6P200Fe 16 OH performs optimally in a 6.5 liter vented enclosure tuned to 71.3 Hz, reaching an F3 cutoff of approximately 70.9 Hz.

Can Beyma LOUDSPEAKER 6P200Fe 16 OH be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 2.9 liters with a Qtc of 0.707, the system exhibits an F3 of 118.6 Hz with tight transient response and natural roll-off.

What port dimensions should be used for Beyma LOUDSPEAKER 6P200Fe 16 OH to avoid port chuffing?

To keep vent air velocity below turbulence limits at rated power, a minimum port diameter of 5.0 cm with a length of 14.2 cm is recommended.

Reflex Optimized

Beyma LOUDSPEAKER 6P200Fe 16 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)	6.5 Liters
Tuning Frequency (Fb)	71.3 Hz
F3 (-3 dB Cutoff)	70.9 Hz
F6 / F10 Extension	64.1 Hz / 56.9 Hz
Port Inner Diameter	Ø 5.0 cm
Port Physical Length	14.2 cm
First Pipe Resonance	1208.0 Hz
Estimated MOL @ F3	109.5 dB SPL

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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING

Net Box Volume (Vb)	2.9 Liters
System Q (Qtc)	0.707 (Butterworth Q=0.707)
System Resonance (Fc)	130.1 Hz
F3 (-3 dB Cutoff)	118.6 Hz
F6 / F10 Extension	88.1 Hz / 64.8 Hz
Air Spring Linearity	High (Zero port compression)

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Verified Thiele/Small Parameters

Resonance (Fs)	66.0 Hz
Total Q (Qts)	0.35
Electrical Q (Qes)	0.381
Mechanical Q (Qms)	4.3

Equivalent Volume (Vas)	8.8 Liters
Diaphragm Area (Sd)	135.0 cm²
DC Resistance (Re)	9.9 Ω
Efficiency Bandwidth Product (EBP)	173.2

Linear Excursion (Xmax)	4.0 mm
Thermal Power (Pe)	200.0 W
Nominal Diameter	6.5"
Catalog Source	Manufacturer Official Datasheet

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Beyma LOUDSPEAKER 6P200Fe 16 OH Enclosure Card

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[b]Beyma LOUDSPEAKER 6P200Fe 16 OH[/b] — 6.5L Bass Reflex tuned to 71.3Hz (F3: 70.9Hz). Designed with [url=https://loadforge.io]Load Forge[/url].

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