What is the recommended ported (bass reflex) box volume for Beyma LOUDSPEAKER 5P200Nd/N 8 OH?

According to electroacoustic alignment calculations, Beyma LOUDSPEAKER 5P200Nd/N 8 OH performs optimally in a 1.5 liter vented enclosure tuned to 121.4 Hz, reaching an F3 cutoff of approximately 124.6 Hz.

Can Beyma LOUDSPEAKER 5P200Nd/N 8 OH be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 0.6 liters with a Qtc of 0.707, the system exhibits an F3 of 156.2 Hz with tight transient response and natural roll-off.

What port dimensions should be used for Beyma LOUDSPEAKER 5P200Nd/N 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 44.4 cm is recommended.

Reflex Optimized

Beyma LOUDSPEAKER 5P200Nd/N 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

109.95 EUR

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Recommended Bass Reflex (Vented)

OPTIMIZED EXTENSION

Net Box Volume (Vb)	1.5 Liters
Tuning Frequency (Fb)	121.4 Hz
F3 (-3 dB Cutoff)	124.6 Hz
F6 / F10 Extension	111.6 Hz / 98.2 Hz
Port Inner Diameter	Ø 6.8 cm
Port Physical Length	44.4 cm
First Pipe Resonance	388.0 Hz
Estimated MOL @ F3	109.4 dB SPL

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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING

Net Box Volume (Vb)	0.6 Liters
System Q (Qtc)	0.707 (Butterworth Q=0.707)
System Resonance (Fc)	231.8 Hz
F3 (-3 dB Cutoff)	156.2 Hz
F6 / F10 Extension	127.4 Hz / 99.4 Hz
Air Spring Linearity	High (Zero port compression)

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Verified Thiele/Small Parameters

Resonance (Fs)	77.0 Hz
Total Q (Qts)	0.23
Electrical Q (Qes)	0.237
Mechanical Q (Qms)	7.31

Equivalent Volume (Vas)	4.8 Liters
Diaphragm Area (Sd)	95.0 cm²
DC Resistance (Re)	5.3 Ω
Efficiency Bandwidth Product (EBP)	324.2

Linear Excursion (Xmax)	5.7 mm
Thermal Power (Pe)	150.0 W
Nominal Diameter	5.0"
Catalog Source	Manufacturer Official Datasheet

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Beyma LOUDSPEAKER 5P200Nd/N 8 OH Enclosure Card

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[url=https://loadforge.io/drivers/beyma-loudspeaker-5p200ndn-8-oh][img]https://loadforge.io/api/v1/card/beyma-loudspeaker-5p200ndn-8-oh.svg[/img][/url]
[b]Beyma LOUDSPEAKER  5P200Nd/N 8 OH[/b] — 1.5L Bass Reflex tuned to 121.4Hz (F3: 124.6Hz). Designed with [url=https://loadforge.io]Load Forge[/url].

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