Speaker size: (in) 12
Watts RMS: 400
Watts peak: 800
Impedance: D4
VCD: (in) 2.5
Piston diameter: (in) 10
FS: (Hz) 37
Qms: 5.835
Qes: 0.845
Qts: 0.738
Vas: (liters) 30.23
dBSPL: 87
Xmech: (mm) 29
Xmax: (mm) 13
Frame OD: (in) 12.126
Frame OD w/Gasket: (in) 11.17

Mounting diameter: (in) 11.02
Mounting depth: (in) 6.53
Motor diameter: (in) 6.14
Motor depth: (in) 2.59
Magnet weight: (Oz) 100
Woofer displacement: (CuFt) 0.07
Ported enclosure: (CuFt) 1.75-2.75
Shipping weight: (lbs) 19.

Diameter
30 cm / 12″

Power Handling (RMS)
350 Watts

Impedance
4 Ohms

Efficiency
88 dB

Power Recommendation
200 – 400 Watts

Voice Coil
50 mm / 2″ copper

Membran Layout
HQPP cone with 3D structure

Max. Excursion (Xmax)
28 mm / 1.10″

Mounting Ø
287 mm / 11.30″

Mounting Depth
149 mm / 5.87″

Resonance Frequency (Fs)
30 Hz

Overall Qaulity (Qts)
0.58

Equiv. Air Volume (Vas)
69.3 L / 2.45 cu.ft.

Diameter
30 cm / 12″

Power Handling (RMS/SPL.)
3000 / 6000 Watts

Impedance
2x 2 Ohms

Efficiency
86.3 dB

Power Recommendation
2000 – 6000 Watts

Voice Coil
75 mm / 3″ CCA

Membran Layout
Reinforced paper

Max. Excursion (Xmax)
70 mm / 2.76″

Mounting Ø
281 mm / 11.06″

Mounting Depth
237 mm / 9.33″

Resonance Frequency (Fs)
41.3 Hz

Overall Qaulity (Qts)
0.54

Equiv. Air Volume (Vas)
25 L / 0.88 cu.ft..

- 12″ subwoofer
- 3″ copper voice coil
- Klippel optimized
- Alumininium cast basket
- reinforced paper cone
- High-roll sandwich surround
- 2x 2 ohm voice coils
- Power handling 1000 W RMS, 1500 W Peak
- Sealed enclosure 19-40 liters
- Ported enclosure 35-50 liters tuned to 32-37 Hz
- Recommended amplifier power 800-1500 W RMS
- Mounting depth: 150 mm
- Mounting hole diameter: 281 mm
- Motor diameter: 175 mm

Thiele-Small parameters:

Re: 3.84 ohm
Fs: 40.5 Hz
Qms: 4.984
Qes 0.593
Qts: 0.530
Vas: 17.7 liters
Le: 3.112 mH
Mms: 256.8 gr
X-max: 50 mm
SPL: 86
Bl: 20.62 TeslaM.