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SPECIFICATIONS
INTRODUCTION
Thank you for choosing MTX to help you reach your ultimate goal with your vehicle. The MTX JackHammer is
a true 22" subwoofer with power and performance beyond anything ever attempted in the mobile audio world.
This behemoth, is capable of handling 6,000 watts of RMS power. Designed for those who want to show off
the biggest woofer ever made no matter the price, the JackHammer will fi t into most full-sized SUVs and
some shorter models, like Escalades, with the third seat removed.
There are two versions of the JackHammer built for different applications. The SPL model (T9922-22) is
perfect for excessive bass and competition use, while the SQL model (T9922-44) offers increased sound
quality for “real life” listening. Both of these kits will work in the same motor for easy installation of either unit.
You can order either of these models or just a re-cone replacement kit for the other and switch between the
two without reinstalling the entire woofer. For more information, see the Piston Change (Re-cone Kit) section
in this manual or call 1-800-CALL-MTX.
The most enormous subwoofer to date, the JackHammer is just the newest example of how MTX is the
biggest, baddest, boldest car audio...ever!
BEFORE STARTING
It is very important that you have your JackHammer installed by an authorized MTX Elite Status retailer,
preferably MECP certifi ed. Before installation, make sure you have read the instructions carefully and have
the following equipment:
• Fork Lift (or another means of lifting approximately 370 lbs.)
• Electric drill •
5
⁄32" drill bit •
5
⁄32", 4mm,
3
⁄16" hex keys
• Safety glasses • T-30 Torx • 3mm hex wrench (if re-coning)
• Six
5
⁄8"-11 bolts 1
3
⁄4" long •
15
⁄16" wrench or socket
ELECTRICAL UPGRADE
A factory electrical system will not be able to handle the power requirements of the amplifi ers that are
needed to drive the JackHammer. You will need to upgrade your vehicle’s electrical system with both
additional batteries and alternators. MTX Audio recommends West Co. SVR80 or SVR100 because they are
a sealed battery that can be mounted in any confi guration and supply the power needed and high-output
alternators from either Ohio Generator or PowerMaster. Also, it is recommended to use anywhere from 3 to 6
StreetWires capacitors to help control the fl ow of power, call 877.STREET1 for more information. The diagram
below shows the wiring needs of your entire vehicle. Please see the Strapping Thunder Amplifi ers section for
further information.
T9922-44
Fs = 16.76 Hz
Qms = 5.19
Vas = 239.1 liters
Cms = 0.063 mm/N
Mms = 1428 g
Rms = 29.04 kg/s
Xmax = 2.5 in
Xmech = 3 in
P-Dia = 17.95 in
Sd = 1642 sq.cm
P-Vd = 0.366 cu.ft
Qes = 0.6
Re = 1.66 ohms
BL = 20.39 Tm
Qts = 0.538
no = 0.181 %
2.83V SPL = 91.55 dB
Model T9922-44 T9922-22
Description
22” SuperWoofer 22” SuperWoofer
Impedance
Dual 4 Ohm Dual 2 Ohm
Frequency Response
20Hz-150Hz 20Hz-150Hz
Power Handling (RMS)
6000 Watts 6000 Watts
Recommended RMS
Amplifi er Power
3000-6000 Watts 3000-6000 Watts
Voice Coil Diameter
6.5” 6.5”
Magnet Weight
900 oz. 900 oz.
Mounting Depth
21
1
⁄16”21
1
⁄16”
Cut Out Diameter
20
1
⁄4”20
1
⁄4”
Sealed Enclosure Net Volume
4.2 ft
3
TBD
Vented Enclosure Net Volume
8.7 ft
3
TBD
Port Dimensions (Slot Port)
24
1
⁄8”H x 3
3
⁄16”W x 10”L
Speaker Displacement
1.8 ft
3
1.8 ft
3
Port Displacement
.5 ft
3
TBD
Tune Frequency
32Hz TBD
T9922-22
Fs = TBD
Qms = TBD
Vas = TBD
Cms = TBD
Mms = TBD
Rms = TBD
Xmax = TBD
Xmech = TBD
P-Dia = TBD
Sd = TBD
P-Vd = TBD
Qes = TBD
Re = TBD
BL = TBD
Qts = TBD
no = TBD
2.83V SPL = TBD
1F 1F1F
1F 1F1F
StreetWires
Distribution
Blocks
StreetWires
Capacitors
StreetWires
1/0 AWG Wire
200 Amp
Minimum
StreetWires
1/0 AWG Wire
StreetWires
1/0 AWG Wire
StreetWires
4 AWG Wire
StreetWires
4 AWG Wire
Isolator
or Relay