What is the recommended ported (bass reflex) box volume for Beyma LOUDSPEAKER 12"XA30/ND 8 OH?

According to electroacoustic alignment calculations, Beyma LOUDSPEAKER 12"XA30/ND 8 OH performs optimally in a 29.3 liter vented enclosure tuned to 59.9 Hz, reaching an F3 cutoff of approximately 73.8 Hz.

Can Beyma LOUDSPEAKER 12"XA30/ND 8 OH be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 16.6 liters with a Qtc of 0.707, the system exhibits an F3 of 93.4 Hz with tight transient response and natural roll-off.

What port dimensions should be used for Beyma LOUDSPEAKER 12"XA30/ND 8 OH to avoid port chuffing?

To keep vent air velocity below turbulence limits at rated power, a minimum port diameter of 10.0 cm with a length of 15.2 cm is recommended.

Reflex Optimized

Beyma LOUDSPEAKER 12"XA30/ND 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

589.95 EUR

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Recommended Bass Reflex (Vented)

OPTIMIZED EXTENSION

Net Box Volume (Vb)	29.3 Liters
Tuning Frequency (Fb)	59.9 Hz
F3 (-3 dB Cutoff)	73.8 Hz
F6 / F10 Extension	64.0 Hz / 54.4 Hz
Port Inner Diameter	Ø 10.0 cm
Port Physical Length	15.2 cm
First Pipe Resonance	1128.0 Hz
Estimated MOL @ F3	nan dB SPL

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Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING

Net Box Volume (Vb)	16.6 Liters
System Q (Qtc)	0.707 (Butterworth Q=0.707)
System Resonance (Fc)	110.7 Hz
F3 (-3 dB Cutoff)	93.4 Hz
F6 / F10 Extension	75.5 Hz / 59.6 Hz
Air Spring Linearity	High (Zero port compression)

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Verified Thiele/Small Parameters

Resonance (Fs)	35.0 Hz
Total Q (Qts)	0.21
Electrical Q (Qes)	0.216
Mechanical Q (Qms)	7.98

Equivalent Volume (Vas)	172.0 Liters
Diaphragm Area (Sd)	530.0 cm²
DC Resistance (Re)	6.8 Ω
Efficiency Bandwidth Product (EBP)	162.3

Linear Excursion (Xmax)	4.0 mm
Thermal Power (Pe)	N/A W
Nominal Diameter	12.0"
Catalog Source	Manufacturer Official Datasheet

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Beyma LOUDSPEAKER 12"XA30/ND 8 OH Enclosure Card

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[url=https://loadforge.io/drivers/beyma-loudspeaker-12inxa30nd-8-oh][img]https://loadforge.io/api/v1/card/beyma-loudspeaker-12inxa30nd-8-oh.svg[/img][/url]
[b]Beyma LOUDSPEAKER 12"XA30/ND 8 OH[/b] — 29.3L Bass Reflex tuned to 59.9Hz (F3: 73.8Hz). Designed with [url=https://loadforge.io]Load Forge[/url].

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