Sealed Specialist

Rockville RVP15W8

Best box: 121.2 L bass reflex tuned to 36.1 Hz · F3 50.8 Hz

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Comparable 15.0" Drivers

Drivers with similar piston area, resonance and Qts — useful alternatives when the Rockville RVP15W8 does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.

Rockville

RVP15W4

15.0" · Fs 42.8 Hz · Qts 0.67 · Vas 161.5 L

Rockville

RVW1500P4

15.0" · Fs 41.0 Hz · Qts 0.613 · Vas 143.8 L

Rockville

W15K9D2

15.0" · Fs 30.0 Hz · Qts 0.73 · Vas 68.9 L

Fane

SOVEREIGN 15-250

15.0" · Fs 43.0 Hz · Qts 0.73 · Vas 144.0 L

P.Audio

IMF HP15W V3

15.0" · Fs 41.0 Hz · Qts 0.7 · Vas 135.9 L

REDCATT

155FIND

15.0" · Fs 40.0 Hz · Qts 0.73 · Vas 166.5 L

Compare them in the same box → Browse all 15.0" drivers → All Rockville drivers →

⚠️ Engineering Notice for Builders

Large enclosure volume (121.2 L) requires extensive internal matrix bracing to prevent panel resonance.

Recommended Bass Reflex (Vented)

PORT BUILDABLE

Net Box Volume (Vb)	121.2 Liters
Tuning Frequency (Fb)	36.1 Hz
F3 (-3 dB Cutoff)	50.8 Hz
F6 / F10 Extension	42.7 Hz / 33.1 Hz
Port Inner Diameter	Ø 12.5 cm
Port Physical Length	14.4 cm
First Pipe Resonance	1198.0 Hz
Estimated MOL @ F3	123.8 dB SPL

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Sealed (Acoustic Suspension) — compromise

SUITS INFINITE / OPEN BAFFLE

With Qts 0.781 a Butterworth (Qtc 0.707) box would be many times Vas. A box equal to Vas reaches Qtc 1.105; for a flat response this driver is better used on an infinite (IB) or open baffle.

Net Box Volume (Vb)	151.6 Liters
System Q (Qtc)	1.105 (above Butterworth: Qtc cannot fall below Qts (0.78))
System Resonance (Fc)	60.1 Hz
F3 (-3 dB Cutoff)	47.8 Hz
F6 / F10 Extension	39.9 Hz / 32.2 Hz
Air Spring Linearity	High (Zero port compression)

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Thiele/Small Parameters

Resonance (Fs)	42.5 Hz
Total Q (Qts)	0.781
Electrical Q (Qes)	0.892
Mechanical Q (Qms)	6.27

Equivalent Volume (Vas)	151.6 Liters
Diaphragm Area (Sd)	855.3 cm²
DC Resistance (Re)	6.8 Ω
Efficiency Bandwidth Product (EBP)	47.6

Linear Excursion (Xmax)	9.5 mm
Thermal Power (Pe)	N/A W
Nominal Diameter	15.0"
Catalog Source	Load Forge catalog (manufacturer datasheets and retailer listings)

Frequently Asked Questions

What is the recommended ported (bass reflex) box volume for Rockville RVP15W8?

Load Forge's calculated alignment puts Rockville RVP15W8 in a 121.2 liter vented enclosure tuned to 36.1 Hz, reaching an F3 cutoff of approximately 50.8 Hz.

Can Rockville RVP15W8 be used in a sealed box?

Yes. In a sealed (acoustic suspension) enclosure of 151.6 liters with a Qtc of 1.105 (above Butterworth: Qtc cannot fall below Qts (0.78)), the system exhibits an F3 of 47.8 Hz.

What port dimensions should be used for Rockville RVP15W8 to avoid port chuffing?

Sized from cone displacement (Sd × Xmax), a minimum port diameter of 12.5 cm with a length of 14.4 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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