Alumapro Alusonic EX 12 Free-Air 12-Inch Metal Cone Subwoofer
Alumapro Alusonic EX 12 Free-Air 12-Inch Metal Cone Subwoofer
Free-air / infinite-baffle power limit: 150 W RMS. In a ported or bandpass box, the full 250 W RMS rating applies.
The Alusonic EX 12 Free-Air is the EX 12 built for free-air (infinite baffle), ported and bandpass installs. Mount it on a rear deck or trunk baffle with no box at all, or build a ported enclosure for big 12-inch output down low.
Highlights
- Proprietary aluminum cone
- Heat-dissipating integrated cone assembly
- High-temp aluminum composite voice coil
- Vented motor structure
- Laminated Nomex suspension with high-roll Santoprene rubber surround
- Heavy-gauge steel frame, 5.25-inch mounting depth
- Can be used in free-air, vented and bandpass applications
- 250 W RMS / 400 W peak in a box
- Available in single 4-ohm, single 8-ohm, dual 4-ohm and dual 6-ohm voice coil
Best for
Rear-deck and trunk-baffle installs, or ported boxes where you want maximum low-end output. Also available: the Alusonic EX 12.
Specifications
| Parameter | Single 4 Ohm | Single 8 Ohm | Dual 4 Ohm | Dual 6 Ohm |
|---|---|---|---|---|
| Impedance (Ohms) | 4 | 8 | 4/4 DVC | 6/6 DVC |
| Fs (Hz) | 35 | 35 | 35 | 36 |
| Qms | 7.3 | 7.3 | 7.3 | 7 |
| Qes | .72 | .72 | .72 | .83 |
| Qts | .65 | .65 | .65 | .74 |
| Vas (Ft³) | 2.1 | 2.1 | 2.1 | 2.0 |
| Re (Ohms) | 3.9 | 7.9 | 1.9 (Par) 7.8 (Ser) | 2.8 (Par) 11.3 (Ser) |
| Xmax (mm) | 10 | 10 | 10 | 10 |
Mounting dimensions (inches)
| Diameter | 12.189" |
|---|---|
| Mounting diameter (cutout) | 10.125" |
| Bolt circle diameter | 11.75" |
| Mounting depth | 5.25" |
Recommended enclosures
- Free-air / infinite baffle: rear deck or trunk baffle, up to 150 W RMS
- Ported: 1.0–2.0 ft³, tuned 28–36 Hz
- Bandpass: sealed chamber 0.90 ft³, vented chamber 1.1 ft³, tuned 60–65 Hz
The Alumapro difference
Alumapro has built aluminum-cone subwoofers in the USA since 1994. An aluminum alloy cone stays rigid under power where paper and poly cones flex, and it helps draw heat away from the voice coil, so bass stays tight and controlled when you turn it up. Every Alumapro sub is hand built in Huntley, Illinois.
Buy direct from ShopAlumapro.com, the main online home of Alumapro. Every order comes with the 2-year warranty, free shipping on orders of $499 or more, and real support from our team in Cary, Illinois. Questions about your build? Talk to us.
Couldn't load pickup availability
Share
