XM Above Excellence

Spawned from “the first of the five – X2C” we created the XM, a subwoofer sharing many of the ideas from the X2C, but scaled down to a 4″ voice coil.
With the same SAFT* design basket on the 15″, airflow is optimized for best possible cooling and increase in the SPL.
All drivers also inherited the OCAF* motor design that allows for both longer excursion and minimizes heat and distortion. In 2016 we introduced the V2 of the XM. Where the V1 was efficient and brutal, the V2 goes beyond the extreme for a 4″ voice coil design. We even added the option of a 21″, whereas the 15″ and 18″ are also available in both dual 1 and dual 2 ohm.

The new tall wind voice coils has increased xmax by 30%, not to mention the benefits of a more efficient powerhandling as well. To transfer the power to the coil, we still use the 4 Ga push terminals  with heavy duty quad multilayer high strand count tinsels. On the XM15″, these are even mounted to a ~12″ 100% Nomex spider, whereas the XM18 settles for 10″ which is far better than the norm.

Semi-pressed, fiber blend cones coupled with high roll surrounds and dual stitching ensures stability at high excursion. This new blend has also made the cones lighter, but strength is now superior compared to ordinary cones. As a little bling, we highlighted the B2 logo on all 2016 subwoofers.

Don’t have the space for Xtreme Music subs? Fear not, the legendary CC8 saw a few optical revisions and was reborn as the XM8 in 2017.
Compared to the CC, it now has even better cooling, slightly taller dual color stitch surround for better controlled excursion once pushed beyond its limits.
To make it complete we used a full cone covered composite fiber dustcap to simulate a larger cone area.  Full info on the XM8 can be found here XM8

Seeking the ultimate in efficiency and chasing world record scores, the XC changed the game.
Subwoofers that were customized for SPL, but that came with great side effects that led them to being popular woofers for extremely loud music installs,
as well as taking home several world championships.

*SAFT – Smooth Air Flow Tech *OCAF – Optimized Cooling And Flow



Specifications:XM8XM15v2 D1XM15v2 D2XM18v2 D1 XM18v2 D2 XM21 XC18 D1 SPL
Frequency Response:10 Hz ~ 500 Hz10 Hz ~ 500 Hz10 Hz ~ 500 Hz10 Hz ~ 500 Hz10 Hz ~ 500 Hz10 Hz ~ 500 Hz10 Hz ~ 500 Hz
Sensitivity 2.83 v: 87.26 dB93.3 dB91.2 dB96.05 dB92.49 dB99.7 dB98.24 dB
Nominal Impedance:Dual 1 OhmDual 0.75 OhmDual 1.8 OhmDual 0.75 OhmDual 1.8 OhmDual 0.75 OhmDual 0.9 Ohm
DC Resistance Series (RE): 2.2 Ohm1.6 Ohm3.6 Ohm1.4 Ohm3.7 Ohm1.6 Ohm2 Ohm
Resonance Frequency (FS):35 Hz34.6 Hz32.5 Hz31.3 Hz31.9 Hz28.8 Hz35.4 Hz
Power Handling: 750 Watts3000 Watts 3000 Watts 3000 Watts 3000 Watts 3000 Watts3000 Watts
Peak Dynamic Power Handling: 2000 watts12000 Watts12000 Watts12000 Watts12000 Watts9000 Watts9000 Watts
VAS: 7.4 L43.7 L50.7 L65.9 L 65.7 L 114.3 L97.56 L
Voice Coil Diameter: 2.5"4"4"4"4"4"4"
CMS:130 um/N40 um/N50 um/N30 um/N30 um/N30 um/N34.8 um/N
MMS:150.2 g501.3 g466.6 g646 g628.8 g790 g579.9 g
BL² /RE:82.2252.5187.8208.9228.9345.7312.5
Magnet Weight:
280 Oz1075 Oz
1075 Oz
1075 Oz1075 Oz1075 Oz1060 Oz
12 mm40 mm40 mm40 mm40 mm40 mm30 mm
2.52 L / 0.089 cu.ft12.24 L / 0.432 cu.ft12.24 L / 0.432 cu.ft15.78 L / 0.557 cu.ft15.78 L / 0.557 cu.ft18.4 L / 0.65 cu.ft16.89 L / 0.596 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.