Vented Specialist

LaVoce LAVFSN02102AF

Best box: 1.5 L bass reflex tuned to 128.3 Hz · F3 115.9 Hz

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Comparable 2.0" Drivers

Drivers with similar piston area, resonance and Qts — useful alternatives when the LaVoce LAVFSN02102AF does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.

LaVoce

FSN021.02

2.5" · Fs 151.0 Hz · Qts 0.68 · Vas 0.3 L

Tang Band

W2-1803S 2" Neodymium Poly Full-Range Driver

2.0" · Fs 155.0 Hz · Qts 0.7 · Vas 0.3 L

REDCATT

21NFR

2.0" · Fs 157.0 Hz · Qts 0.68 · Vas 0.2 L

REDCATT

DR-2-002-16R-B2-C0001

2.0" · Fs 157.0 Hz · Qts 0.68 · Vas 0.2 L

LaVoce

FSF020.50

2.0" · Fs 200.0 Hz · Qts 0.89 · Vas 0.2 L

MISCO

50-WB04-01

2.0" · Fs 145.0 Hz · Qts 0.66 · Vas 0.2 L

Compare them in the same box → Browse all 2.0" drivers → All LaVoce drivers →

⚠️ Engineering Notice for Builders

Limited linear excursion (Xmax: 2.5 mm); set a high-pass subsonic filter at 25–30 Hz when driven with high power.

Recommended Bass Reflex (Vented)

PORT BUILDABLE

Net Box Volume (Vb)	1.5 Liters
Tuning Frequency (Fb)	128.3 Hz
F3 (-3 dB Cutoff)	115.9 Hz
F6 / F10 Extension	108.5 Hz / 100.2 Hz
Port Inner Diameter	Ø 5.0 cm
Port Physical Length	20.3 cm
First Pipe Resonance	849.0 Hz
Estimated MOL @ F3	99.2 dB SPL

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Sealed (Acoustic Suspension) — compromise

SUITS INFINITE / OPEN BAFFLE

With Qts 0.68 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 0.962; for a flat response this driver is better used on an infinite (IB) or open baffle.

Net Box Volume (Vb)	0.33 Liters
System Q (Qtc)	0.962 (above Butterworth)
System Resonance (Fc)	213.5 Hz
F3 (-3 dB Cutoff)	183.0 Hz
F6 / F10 Extension	149.5 Hz / 119.0 Hz
Air Spring Linearity	High (Zero port compression)

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Thiele/Small Parameters

Resonance (Fs)	151.0 Hz
Total Q (Qts)	0.68
Electrical Q (Qes)	0.776
Mechanical Q (Qms)	5.5

Equivalent Volume (Vas)	0.3 Liters
Diaphragm Area (Sd)	19.0 cm²
DC Resistance (Re)	5.7 Ω
Efficiency Bandwidth Product (EBP)	194.6

Linear Excursion (Xmax)	2.5 mm
Thermal Power (Pe)	N/A W
Nominal Diameter	2.0"
Catalog Source	Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for LaVoce LAVFSN02102AF?

Load Forge's calculated alignment puts LaVoce LAVFSN02102AF in a 1.5 liter vented enclosure tuned to 128.3 Hz, reaching an F3 cutoff of approximately 115.9 Hz.

Can LaVoce LAVFSN02102AF be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 0.33 liters with a Qtc of 0.962 (above Butterworth), the system exhibits an F3 of 183.0 Hz.

What port dimensions should be used for LaVoce LAVFSN02102AF to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 20.3 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.

Shareable Acoustic Card for Forums & Social Media

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