Ascendant Audio Arsenal 12 D1

12″ subwoofer · dual 1 Ω · 1,250 W RMS

Fs 34.2 HzQts 0.79Vas 1.14 ft³Xmax 1.02″

Recommended box

For a sedan, one sub, 1,250 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 volume1.70 ft³ (48 L)
Qtc1.03
Fc44 Hz
F3 (−3 dB, no cabin gain)36 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 8 5/8″
Open sealed box in designer

Ported

Net volume2.90 ft³ (82 L)
Tuning (Fb)31 Hz
Portslot 3 3/8 × 14 5/16″, 40 3/8″ long
Port velocity at 1,250 W62 ft/s
F3 (−3 dB, no cabin gain)26 Hz
Example box (outside)31 1/2″ × 15 3/4″ × 18 11/16″
Open ported box in designer
203040506080100150200606672788490HzdB
Sealed Ported · SPL in dB at 1 W / 1 m, no cabin gain

Thiele/Small parameters

Fs34.2 Hz
Qts0.79
Qes0.92
Qms5.81
Vas1.14 ft³
Re (one coil)0.75 Ω
Sd74.4 in²
Xmax1.02″
Vd76.2 in³ calc.
Mms219 g calc.
BL6.2 T·m calc.
EBP37 — suits sealed calc.
Sensitivity, 1 W / 1 m83.5 dB calc.

General

Size12″
Voice coilsdual 1 Ω
RMS power1,250 W

Mounting dimensions

Ø≈ 12 5/16″cutout ≈ Ø11 1/8″mounting depth ≈ 5 7/8″magnet Ø≈ 7 3/16″
Cutout diameter≈ 11 1/8″
Mounting depth≈ 5 7/8″

Judging by its value, the published Re is for both coils in series — converted to per coil.

“≈” 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 Ascendant Audio 12″ models