AMP MASS 1000 12D2 V.2

12″ subwoofer · dual 2 Ω · 1,000 W RMS

Fs 28.3 HzQts 0.39Vas 1.02 ft³Xmax 0.79″

Recommended box

For a sedan, one sub, 1,000 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

Net volume0.71 ft³ (20 L)
Qtc0.61
Fc44 Hz
F3 (−3 dB, no cabin gain)54 Hz
Example box (outside)14 9/16″ × 14 9/16″ × 9 9/16″
Open sealed box in designer

Ported

Net volume1.52 ft³ (43 L)
Tuning (Fb)27 Hz
Portround port Ø3″, 14 13/16″ long
Port velocity at 1,000 W274 ft/s
F3 (−3 dB, no cabin gain)25 Hz
Example box (outside)30 13/16″ × 15 3/4″ × 8 7/16″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs28.3 Hz
Qts0.39
Qes0.42
Qms6.06
Vas1.02 ft³
Re (one coil)≈ 1.7 Ω
Sd79.1 in²
Xmax0.79″
Vd62.2 in³ calc.
Mms403 g calc.
BL17 T·m calc.
EBP67 — sealed or ported calc.
Sensitivity, 1 W / 1 m83.9 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power1,000 W

Mounting dimensions

Ø12 5/8″cutout Ø11 1/4″mounting depth ≈ 5 7/8″magnet Ø7 1/2″
Cutout diameter11 1/4″
Mounting depth≈ 5 7/8″
Overall diameter12 5/8″
Magnet diameter7 1/2″

“≈” 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

Other AMP 12″ models