The TremorX is one of the latest additions to Earthquake's many lines of subwoofers. It is designed to carry a tough presence while satisfying the craving for major bass. 

The basket has a 3mm thick triple chrome dipped finish, that looks great with the deep bumped form. The TremorX's good looks in no way undermine it's performance. 

These subs have oversized 8-ohm high temperature voice coils and is cooled using the patented "Turbo-Prop" cooling system. While many subs cone's will deform under extreme conditions the Tremor always remains strong and linear due to it's flat head piston design and high strength molded cone and dust-cap.

The TremorX delivers the performance and the looks. The hot fiery driver moves more air than any others out there, ultimately translating to affordable SPL. When pressing against the cone of an TRMX-8 it easily moves one-inch, but it doesn't stop there. It is capable of moving almost two-inches in each direction, and when compared to other eights; it takes three of theirs to compare too one of ours. 

Tremor-X104 10" Single 4 Ohm
500 watts 
Fs = 25Hz 
Qms = 6.336 
Qes = 0.432 
Qts = 0.405 
VAS = 1.783 cu. ft. / 50.46 liters 
Xmax = 0.5" 
84dB 1W/1M 
Single 4-Ohm
Tremor-X108 10" Single 8 Ohm
500 watts 
Fs = 26Hz 
Qms = 6.115 
Qes = 0.472 
Qts = 0.438 
VAS = 1.735 cu. ft. / 49.10 liters 
Xmax = 0.5" 
84dB 1W/1M 
Single 8-Ohm 
Tremor-X124 12" Single 4 Ohm
Fs = 23Hz 
Qms = 6.465 
Qes = 0.443 
Qts = 0.414 
VAS = 3.739 cu. ft. / 105.81 liters 
Xmax = 0.75" 
86dB 1W/1M 
Single 4-Ohm 
Tremor-X128 12" Single 8 Ohm
800 watts 
Fs = 24Hz 
Qms = 6.451 
Qes = 0.493 
Qts = 0.458 
VAS = 3.539 cu. ft. / 100.15 liters 
Xmax = 0.75" 
86dB 1W/1M 
Single 8-Ohm 
Tremor-X154 15" Single 4 Ohm
1000 watts 
Fs = 20Hz 
Qms = 6.936 
Qes = 0.406 
Qts = 0.384 
VAS = 6.131 cu. ft. / 173.51 liters 
Xmax = 1 " 
87dB 1W/1M 
Single 4-Ohm 
Tremor-X158 15" Single 8 Ohm
1000 watts 
Fs = 21Hz 
Qms = 6.774 
Qes = 0.462 
Qts = 0.433 
VAS = 5.982 cu. ft. / 169.29 liters 
Xmax = 1 " 
87dB 1W/1M 
Single 8-Ohm 

Enclosure Specs for all subs

• SWS-6.5 6.5" Shallow Subwoofer
• 1.8" Excursion
• 1-3/4" Mounting depth
• 150 RMS/ 300 Peak
• 1" Aluminum Voice Coil
• Single 4 Ohm Voice Coil
• SWS-8 8" Shallow Subwoofer
• 1.8" Excursion
• 2-1/8" Mounting depth
• 150 RMS/ 300 Peak
• 1.5" Aluminum Voice Coil
• Single 4 Ohm Voice Coil
• SWS-10  10" Shallow Subwoofer
• 2.2" Excursion
• 2-11/16" Mounting depth
• 200 RMS/ 400 Peak
• 2" Aluminum Voice Coil
• Single 4 Ohm Voice Coil
• SWS-12 12" Shallow Subwoofer
• 2.5" Excursion
• 3" Mounting depth
• 300 RMS /600 Peak
• 2.5" Aluminum Voice Coil
• Single 4 Ohm Voice Coil
• SWS-15 15" Shallow Subwoofer
• 2.75" Excursion
• 3-1/4" Mounting depth
• 400 RMS /800 Peak
• 2.5" Aluminum Voice Coil
• Single 4 Ohm Voice Coil
• Review on the SWS Subwoofers
• Road Gear Magazine Review

• Four winding, High temp, Aluminum Bobbin Voice-coil. 
• Pressed 1" Super-wide edge cone surrounds.
• Kevlar weaved cone and dust cap. 
• Custom Aluminum frame
• Large progressive spider
• Double stacked magnets

DB-10
- 500 MAX
- Fs = 29Hz
- Qts = 0.5584
- Vas = 1.30 cubic ft
- Sen = 87dB
- 2" polymide coil (4 - ohms)
- 50 Oz magnet
- Santoprene surround 
DB-12
- 600 MAX
- Fs = 27Hz
- Qts = 0.6339
- Vas = 3.19 cubic ft
- Sen = 90dB
- 2" polymide coil (4 ohms)
- 50 Oz magnet
- Santoprene surround 
DB-15
- 800 MAX
- Fs = 26Hz
- Qts = 0.7356
- Vas = 5.71 cubic ft
- Sen = 92dB
- 2" polymide coil (4 ohms)
- 70 Oz magnet
- Santoprene surround 

DBXi-12OS
12" Dual 2 Ohm 3000W Custom DB Drag Subwoofer

US $899.95

When creating the DBXi subs, we took technology beyond the norms. We aimed at creating a driver that is so versatile it would be able to put out bone crushing low frequency response, never the less still be able to generate upper bass notes.

Designed in many ways like the famous Extra long throw Magma subs. But in this case we reduced the mounting depth of the driver for shallower applications (shallower boxes), stitched the leads into the spider to eliminate it from breaking or flopping; in addition, we used ultra resilient cones - 3 mm for mina to no cone distortions.

The motor structure is created using a hot forged process to mold the back plate and center pole a out of one piece, a process only known to plutonium rod maker in the Wisconsin industry. The one piece structure is like a bunch of mini highways of energy that efficiently transfer the magnetic flux for more efficient and cooler running voice coil.

Our engineers did not stop there, created a new and patented feature, the "Turbo-Prop Cooling System", to move air in the voice coil gap and deep the voice coil cool. This allows it to be over driven beyond its normal use. The DBXR work well in small sealed or moderate size vented boxes, they will perform good in open air applications.

Massive Excursion
Stitched Leads
Spring Loaded Terminals
Cast Aluminum Frame
Double Stacked Magnet with boot
Nomex/Romex Double Spiders
TCT (Turbine Cooled Transducer) Cooling Device
Reinforced Design

DBXi-10 / DBXi-10D
* 400 Watts RMS 800 Walls Peak Power
* 10" cast frame subwoofer
* Single or Dual voice coil 4-ohm
* XMax 1-Inch, 25.4 mm
* 2" voice coil, aluminum bobin
* Sensitivity 85 dB
* Free Air Resonance 28Hz/27Hz
* 120 Oz double stacked magnet
 DBXi-12 / DBXi-12D
* 500 Watts RMS 1000 Walls Peak Power
* 12" cast frame subwoofer
* Single or Dual voice coil 4-ohm
* XMax 1.25-Inch, 27.94 mm
* 2" voice coil, aluminum bobin
* Sensitivity 87 dB
* Free Air Resonance 25Hz / 24Hz
* 120 Oz double stacked magnet
DBXi-15 / DBXi-15D
* 750 Watts RMS 1000 Walls Peak Power
* 15" cast frame subwoofer
* Single or Dual voice coil 4-ohm
* XMax 1.5-Inch, 30.48 mm
* 3" voice coil, aluminum bobin
* Sensitivity 88 dB
* Free Air Resonance 20Hz
* 120 Oz double stacked magnet
DBXi-12OS
3000-Watts
12" cast subwoofer
Dual 2-ohm, 3" flat wire aluminum bobin voice coil
Reccomended vented enclosure: 4-4 1/2 f3
Reccomended port surface: 60"- 120"
40 lbs

• UV Treated multi Lqaminated composite cone surround. Pressed into a high-roll shape for ultra long excursions without taxing the cone area. (More Cone Area = More SPL)
• Custom designed aluminum basket externally finished with a precision diamond cut, it houses a gigantic motor that accomodates the largest 3" voice coil in the market: A stylish chromed mash grille conceals the motor structure. 
• "PSP" is one of the most innovative terminal designs to hit the woofer market. The "PSP" is best described as two seperate terminals housed in one stylish body, it is equipped with fused jumpers that can be manipulated to achieve different coil configurations, series or parallel.

  ---


Subzero-10
-1500 Watts 
-750 Watts RMS 
- Recommended sealed enclosure range:  0.8 to 1 feet cubed 
-Features
- Over 3" long throw excursion
- 2.5" High Temp flat wire dual (2x4ohms)
- Dual Nomax / Romax spider construction
- 8 gauge speaker connections
-Mounting Depth 6.5"
Tech Specs and Box designs

---


Subzero-12
- 1200W peak
- 1000W RMS
- Recommended sealed enclosure  range:  1 to 2.0 feet cubed 
Features
- Over 4" long throw excursion
- 3" High Temp flat wire dual (2x4ohms)
- Dual Nomax / Romax spider construction
- 8 gauge speaker connections
-Mounting Depth 7.25"
-Tech Specs and Box designs


---


-Subzero-15
- 2500W peak
- 1250W RMS
- Recommended sealed enclosure  range:  3 to 3.5 feet cubed 
Features
- Over 4" long throw excursion
- 3" High Temp flat wire dual (2x4ohms)
- Dual Nomax / Romax spider construction
- 8 gauge speaker connections
--Mounting Depth 7.5"

• Ruler of DBDragg
• Now more than ever the name Earthquake has become synonymous with winners circle, ruler of DBDrag, the one to beat etc. For 2005 we elaborated on the bar and raised it so high it wont be touched exceeding even our best. 
• The HoLeeS-15 competition subwoofer weighs in at 100lbs. net. It packs four superior spider units, a 4" dual voice coil with a flat wire surface, patented PSP terminals, a high roll surround and killer looks.
• If your ready bring home 1st place your at the right place. If your using anything else you'll just get second and be the first looser
• SPECS
• Sensitivity 85.0 dB
• Qts .338
• Fo 25.475 Hz
• 15,000 Watts Peak
• 7000 Watts RMS each coil
• Over 4" long throw excursion
• Dual (2x1ohms) 4" x 8" High Temp military grade flat wire voice coil.
• (4)Quad Nomax / Romax spider construction
• 8 gauge speaker connections
• 112lbs.
• Recommended Enclosure
• 6-10 Cu Ft 1" MDF Minimum 
• Port Surface 107.25 sq in
• Port Length 18.5" Depending on the tuning frequency
• Tech Specs PDF File