SPL Dynamics PRO-10D2 MK3

10″ subwoofer · dual 2 Ω · 400 W RMS

34 HzFs, resonance

0.47Qts

1.20 ft³Vas

0.59″Xmax

400 WRMS

Source	web.archive.org · manufacturer data
Checked against source	October 2026
Thiele/Small parameters	not in the spec sheet: Sd — typical value for the size used
Mounting dimensions	2 of 4 — missing: frame outer diameter, magnet diameter; the designer will use an estimate

Recommended box

For a sedan, one sub, 400 W. It’s the same math as the designer’s step-by-step mode, where you can fit the box to your space, vehicle and amp and get plans, a cut sheet and DXF.

Sealed

smaller, tighter

0.60 ft³ (17 L)

Net volume

Bass character (Qtc)	Tight and punchy · 0.81
Fc	59 Hz
F3 (−3 dB, no cabin gain)	56 Hz
Example box (outside)	12 3/16″ × 12 3/16″ × 11 1/4″

Open sealed box in designer

Ported

deeper, louder

0.95 ft³ (27 L)

Net volume

Tuning (Fb)	45 Hz
Port	2 round ports Ø3″, 17 1/4″ long
Port velocity at 400 W	80 ft/s
F3 (−3 dB, no cabin gain)	41 Hz
Example box (outside)	22 1/2″ × 15 3/4″ × 8 1/4″

Open ported box in designer

Deeper: 2.01 ft³ (57 L) tuned to 31 Hz, 31 1/2″ × 15 3/4″ × 12 3/16″ outside — a bigger box with flatter deep bass. Open in the calculator

Where to buy Amazon

Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Size	10″
Voice coils	dual 2 Ω
RMS power	400 W
Fs	34 Hz
Qts	0.47
Qes	0.49
Qms	9.35

Vas	1.20 ft³
Re (one coil)	1.8 Ω
Sd	≈ 52.7 in²
Xmax	0.59″
EBP	69 — sealed or ported calc.
Sensitivity, 1 W / 1 m	86.4 dB calc.

Mounting dimensions

Cutout diameter	9″
Mounting depth	5 11/16″

“≈” means the value isn’t in the spec sheet and a typical value for the size is used; “calc.” means it’s calculated from the published parameters. Check the manufacturer’s spec sheet before you build.

Data sources

web.archive.org/web/20070715152524/http://www.spldynamics.fi:80/oldmodels/oldsub

Other SPL Dynamics 10″ models

SPL Dynamics PRO-10D2 MK4 10″ · dual 2 Ω
SPL Dynamics PRO-10D4 MK3 10″ · dual 4 Ω
SPL Dynamics PRO-10D4 MK4 10″ · dual 4 Ω
SPL Dynamics PRO-250D2 10″ · dual 2 Ω
SPL Dynamics SW-250D2 10″ · dual 2 Ω
SPL Dynamics V-10S 10″ · 4 Ω
SPL Dynamics V-10S4 10″ · 4 Ω
SPL Dynamics V-250D2 10″ · dual 2 Ω
SPL Dynamics V-250D4 10″ · dual 4 Ω
SPL Dynamics V-250S4 10″ · 4 Ω
SPL Dynamics XTR-250D2 10″ · dual 2 Ω
SPL Dynamics XTR-250D4 10″ · dual 4 Ω

Similar 10″ subwoofers from other brands

Close in Fs, Qts and Vas — a box of similar volume will suit them.

Helix IK S10-DVC2 (2x2 Ohm) 0.57 ft³ sealed · 0.95 ft³ ported
Helix K 10S-DVC2 (2x2 Ohm) 0.57 ft³ sealed · 0.95 ft³ ported
Machete MS-10 D2 0.60 ft³ sealed · 0.95 ft³ ported
Phoenix Gold RX110 0.67 ft³ sealed · 0.92 ft³ ported
DD Audio 610f D2 0.55 ft³ sealed · 1.52 ft³ ported
DD Audio 610f D4 0.55 ft³ sealed · 1.52 ft³ ported

FAQ

What box does the SPL Dynamics PRO-10D2 MK3 need?

Recommended net volume: 0.60 ft³ sealed, 0.95 ft³ ported tuned to 45 Hz — for one sub in a sedan at 400 W. Fit the box to your space and amp in the free calculator, with plans and a cut sheet.

What are the SPL Dynamics PRO-10D2 MK3 Thiele/Small specs?

Fs 34 Hz, Qts 0.47, Vas 1.20 ft³, Xmax 0.59″.

What is the SPL Dynamics PRO-10D2 MK3 mounting depth?

Mounting depth is 5 11/16″, cutout diameter 9″. The inside depth of the box must exceed the mounting depth by at least 1″.

How much power does the SPL Dynamics PRO-10D2 MK3 handle and how do I wire it?

RMS power rating: 400 W. Dual 2 Ω voice coils: series gives 4 Ω, parallel gives 1 Ω at the amp. Wiring for several subs and amp power — in the wiring calculator.