AMP MASS 1500 12D2 V.2

12″ subwoofer · dual 2 Ω · 1,500 W RMS

Fs 32 HzQts 0.33Vas 0.70 ft³Xmax 0.61″

Recommended box

For a sedan, one sub, 1,500 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 volume0.76 ft³ (21.5 L)
Qtc0.45
Fc44 Hz
F3 (−3 dB, no cabin gain)80 Hz
Example box (outside)14 3/16″ × 14 3/16″ × 10 5/8″
Open sealed box in designer

Ported

Net volume1.45 ft³ (41 L)
Tuning (Fb)26 Hz
Portround port Ø2 1/2″, 11 3/4″ long
Port velocity at 1,500 W484 ft/s
F3 (−3 dB, no cabin gain)60 Hz
Example box (outside)22 1/4″ × 15 3/4″ × 10 5/8″
Open ported box in designer
2030405060801001502006066727884HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs32 Hz
Qts0.33
Qes0.35
Qms5.16
Vas0.70 ft³
Re (one coil)2.15 Ω
Sd≈ 76 in²
Xmax0.61″
EBP91 — sealed or ported calc.
Sensitivity, 1 W / 1 m84.7 dB calc.

General

Size12″
Voice coilsdual 2 Ω
RMS power1,500 W

Mounting dimensions

Ø12 5/8″cutout Ø11″mounting depth 8 1/16″magnet Ø7 7/8″
Cutout diameter11″
Mounting depth8 1/16″
Overall diameter12 5/8″
Magnet diameter7 7/8″

“≈” 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