Alumapro Alchemy MX 12 Free-Air 12-Inch Metal Cone Subwoofer
Alumapro Alchemy MX 12 Free-Air 12-Inch Metal Cone Subwoofer
Free-air / infinite-baffle power limit: 200 W RMS. In a vented or bandpass box, it's rated 300 W RMS / 600 W program.
The Alchemy MX 12 Free-Air is the MX built to play deep with no box at all. Alumapro's proprietary FEA-designed alloy cone and the same aero-vented cast frame as the standard MX, paired with its own free-air surround and suspension, reach down to a 26 Hz resonance, making it the right 12 for rear-deck, trunk-baffle, vented and bandpass installs.
Highlights
- Proprietary FEA-designed alloy cone
- Free-air surround and suspension: extended-excursion Santoprene surround and laminated Nomex spiders
- Heavy low-distortion magnet structure
- Multi-layer high-temp voice coil
- Proprietary cast frame with aero venting
- 12 mm Xmax, 90 dB sensitivity
- Can be used in free-air, vented and bandpass applications
- 300 W RMS / 600 W program in a box; 200 W RMS free-air
Best for
Rear-deck and trunk-baffle installs where you want deep bass without giving up trunk space, or a ported box for maximum output. Also available: the Alchemy MX 12.
Specifications
Specifications below are for the single 4-ohm version. Specs for the other voice-coil options are coming soon.
| Parameter | Single 4 Ohm |
|---|---|
| Fs (Hz) | 26 |
| Qms | 5.5 |
| Qes | .56 |
| Qts | .51 |
| Vas (Ft³) | 3.64 |
| Re (Ohms) | 3.9 |
| Xmax (mm) | 12 |
| Sensitivity (dB/2.83 V/1 m) | 90 |
| Power capacity (W RMS / program) | 300 / 600 |
Mounting dimensions (inches)
| Diameter | 12.625" |
|---|---|
| Mounting diameter (cutout) | 11.312" |
| Bolt circle diameter | 12.063" |
| Mounting depth | 5.5" |
Recommended enclosures
- Free-air / infinite baffle: rear deck or trunk baffle, up to 200 W RMS
- Ported: 2 ft³, tuned 30–36 Hz, 4" diameter × 12" long Aeroport (typical internal dimensions 13"H × 20"W × 14.5"D)
- Bandpass: supported application
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.
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