2012 had the seeds planted for the RAMPAGE. A direct derivate from the legendary & innovative X2C subwoofer with a 5″ voice coil. Although the RAMPAGE XM is based on a 4″ coil platform, its performance will not stand in the shade of its heritage. In many ways, it pushes the boundaries even further. The new basket offers better cooling with improved SAFT (Smooth Air Flow Tech) & has the ability of offering even more XMAX than the previous basket . 3.15″/ 80 mm peak to peak handled by the 315 mm / 12.4″ spiders , that are amongst the largest you will find on any traditional 15″ subwoofer (without the use of adapters), in addition the new basket offers a triple landing so you can customize the stiffness and spider size to your application.


OCAF version II (Optimized Cooling And Flow) implemented in the new motor design has adapted the large flares from the X2C’s backplate. In addition the pole piece features a dual cooling system that leads the air more efficiently away from the voice coil. Even though the internal diameter of the coil is 4″, the outer diameter of 4.33″ makes this coil a widebody, coupled with an 8 layer tall winding, this design is made for daily torture or demo days!

The RAMPAGE XM’s motor keeps the same 10.24″ diameter as previous XM subwoofers, but the triple stack ferrite slugs are increased by 25%. Still we are able to keep the entire height of the motor to a mere 10% more than 2nd gen XM. With the longer Xmech, the added 10% comes into play.


Another tool was made for the XL composite dustcaps with embossed B2 logo. The half spherical design with wider wedges stiffens up the cone, offering greater stability, and helps keep that transient response tight. So when the bass drops its on point. Using a slightly wider strech foam surround there’s less mechanical parts that will limit your stroke.

RAMPAGE8 Manual Manual

Frequency Response:10 Hz ~ 500 Hz10 Hz ~ 500 Hz10 Hz ~ 500 Hz10 Hz ~ 500 Hz10 Hz ~ 500 Hz10 Hz ~ 500 Hz10 Hz ~500 Hz10 Hz ~500 Hz
Sensitivity: 86.2 dB83.6 dB87.4 dB83.9 dB90.8 dB87.4 dB94 dB91.3 dB
Nominal Impedance:Dual 1 ΩDual 2 ΩDual 1 ΩDual 2 ΩDual 1 ΩDual 2 ΩDual 1 ΩDual 2 Ω
DC Resistance (RE): 1 Ohm1.9 Ohm1.8 Ohm3.6 Ohm1.8 Ohm3.6 Ohm1.8 Ohm3.6 Ohm
Resonance Frequency (FS):36 Hz34.5 Hz34.6 Hz33.8 Hz30.8 Hz30 Hz28 Hz28 Hz
Power Handling: 1000 Watts1000 Watts5000 Watts 5000 Watts5000 Watts5000 Watts5000 Watts5000 Watts
Peak Dynamic Power Handling: 2000 Watts2000 Watts15000 Watts 15000 Watts15000 Watts15000 Watts15000 Watts15000 Watts
VAS: 6.1 L6.4 L9.7 L10.1 L28 L29.5 L59 L63.2 L
Voice Coil Diameter: 2"2"4"4"4"4"4"4"
CMS:110 um/N120 um/N30 um/N30 um/N30 um/N30 um/N29 um/N29 um/N
MMS:160 g169.1 g635 g650 g784.8 g795 g870 g880 g
Magnet Weight:
300 Oz300 Oz1100 Oz
1100 Oz1100 Oz1100 Oz1100 Oz1100 Oz
XMAX one way:
20 mm / 0.787"20 mm / 0.787"40 mm / 1.575"40 mm / 1.575"40 mm / 1.575"40 mm / 1.575"40 mm / 1.575"40 mm / 1.575"
3.3 L / 0.115 cu.ft3.3 L / 0.115 cu.ft10.22 L / 0.361 cu.ft10.22 L / 0.361 cu.ft13.95 L / 0.493 cu.ft13.95 L / 0.493 cu.ft17 L / 0.60 cu.ft17 L / 0.60 cu.ft

*It is essential that our subwoofers are given time to allow the suspension to soften up. Depending on use, this may take several weeks. While this process is undergoing, it is not recommended to apply full amplification power according to the subwoofers specs. Once the moving parts have been broken in, the performance of your subwoofer will increase.