What is the recommended ported (bass reflex) box volume for Beyma LOUDSPEAKER 12"P80/Fe V2 8 OH?

According to electroacoustic alignment calculations, Beyma LOUDSPEAKER 12"P80/Fe V2 8 OH performs optimally in a 10.4 liter vented enclosure tuned to 82.1 Hz, reaching an F3 cutoff of approximately 97.8 Hz.

Can Beyma LOUDSPEAKER 12"P80/Fe V2 8 OH be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 5.9 liters with a Qtc of 0.707, the system exhibits an F3 of 137.0 Hz with tight transient response and natural roll-off.

What port dimensions should be used for Beyma LOUDSPEAKER 12"P80/Fe V2 8 OH to avoid port chuffing?

To keep vent air velocity below turbulence limits at rated power, a minimum port diameter of 15.0 cm with a length of 64.8 cm is recommended.

Reflex Optimized

Beyma LOUDSPEAKER 12"P80/Fe V2 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

196.91 GBP

Check Price & Availability ↗ Open in Load Forge Simulator ↗

⚠️ Engineering Notice for Builders

Port length (64.8 cm) is long; consider an elbow bend, slotted vent, or passive radiator to avoid box collision.

Recommended Bass Reflex (Vented)

OPTIMIZED EXTENSION

Net Box Volume (Vb)	10.4 Liters
Tuning Frequency (Fb)	82.1 Hz
F3 (-3 dB Cutoff)	97.8 Hz
F6 / F10 Extension	83.1 Hz / 71.0 Hz
Port Inner Diameter	Ø 15.0 cm
Port Physical Length	64.8 cm
First Pipe Resonance	265.0 Hz
Estimated MOL @ F3	121.2 dB SPL

Simulate This Reflex Box in App →

Recommended Sealed (Acoustic Suspension)

MAX TRANSIENT DAMPING

Net Box Volume (Vb)	5.9 Liters
System Q (Qtc)	0.707 (Butterworth Q=0.707)
System Resonance (Fc)	154.3 Hz
F3 (-3 dB Cutoff)	137.0 Hz
F6 / F10 Extension	106.3 Hz / 80.3 Hz
Air Spring Linearity	High (Zero port compression)

Simulate This Sealed Box in App →

Verified Thiele/Small Parameters

Resonance (Fs)	48.0 Hz
Total Q (Qts)	0.21
Electrical Q (Qes)	0.217
Mechanical Q (Qms)	6.5

Equivalent Volume (Vas)	61.0 Liters
Diaphragm Area (Sd)	550.0 cm²
DC Resistance (Re)	5.0 Ω
Efficiency Bandwidth Product (EBP)	221.2

Linear Excursion (Xmax)	7.5 mm
Thermal Power (Pe)	700.0 W
Nominal Diameter	12.0"
Catalog Source	Manufacturer Official Datasheet

Shareable Acoustic Card for Forums & Social Media

Embed this verified design card on DIYAudio, AVSForum, Reddit, or Facebook. Includes verified F3, MOL, and box parameters.

Beyma LOUDSPEAKER 12"P80/Fe V2 8 OH Enclosure Card

Copy Forum BBCode (DIYAudio / AVSForum)

[url=https://loadforge.io/drivers/beyma-loudspeaker-12inp80fe-v2-8-oh][img]https://loadforge.io/api/v1/card/beyma-loudspeaker-12inp80fe-v2-8-oh.svg[/img][/url]
[b]Beyma LOUDSPEAKER 12"P80/Fe V2 8 OH[/b] — 10.4L Bass Reflex tuned to 82.1Hz (F3: 97.8Hz). Designed with [url=https://loadforge.io]Load Forge[/url].

Download SVG Card 📥

Not sure if LOUDSPEAKER 12"P80/Fe V2 8 OH fits your physical space?

Don't force a driver into the wrong box. Use Bass Match to calculate which of 9,000+ verified manufacturer drivers delivers the highest SPL, lowest F3, and cleanest port air velocity for your exact trunk or room dimensions.

Run Bass Match for Your Space ⚡