MTX Audio JackHammer owner manual Introduction, Before Starting, Electrical Upgrade

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 fit 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!

SPECIFICATIONS	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	3000-6000 Watts	3000-6000 Watts
	Amplifier Power
	Voice Coil Diameter	6.5”	6.5”
	Magnet Weight	900 oz.	900 oz.
	Mounting Depth	211⁄16”	211⁄16”
	Cut Out Diameter	201⁄4”	201⁄4”
	Sealed Enclosure Net Volume	4.2 ft3	TBD
	Vented Enclosure Net Volume	8.7 ft3	TBD
	Port Dimensions (Slot Port)	241⁄8”H x 33⁄16”W x 10”L
	Speaker Displacement	1.8 ft3	1.8 ft3
	Port Displacement	.5 ft3	TBD
	Tune Frequency	32Hz	TBD

T9922-44	P-Vd = 0.366 cu.ft	T9922-22	P-Vd = TBD
Fs = 16.76 Hz		Fs = TBD
Qms = 5.19	Qes = 0.6	Qms = TBD	Qes = TBD
Vas = 239.1 liters	Re = 1.66 ohms	Vas = TBD	Re = TBD
Cms = 0.063 mm/N	BL = 20.39 Tm	Cms = TBD	BL = TBD
Mms = 1428 g	Qts = 0.538	Mms = TBD	Qts = TBD
Rms = 29.04 kg/s	no = 0.181 %	Rms = TBD	no = TBD
Xmax = 2.5 in	2.83V SPL = 91.55 dB	Xmax = TBD	2.83V SPL = TBD
Xmech = 3 in		Xmech = TBD
P-Dia = 17.95 in		P-Dia = TBD
Sd = 1642 sq.cm		Sd = TBD

BEFORE STARTING

It is very important that you have your JackHammer installed by an authorized MTX Elite Status retailer, preferably MECP certified. 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 amplifiers 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 configuration 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 flow of power, call 877.STREET1 for more information. The diagram below shows the wiring needs of your entire vehicle. Please see the Strapping Thunder Amplifiers section for further information.

StreetWires

1/0 AWG Wire

Isolator
or Relay
	200 Amp
	Minimum
	StreetWires
	1/0 AWG Wire
	StreetWires
StreetWires	4 AWG Wire
Distribution
Blocks
1F	1F	1F
		StreetWires
		Capacitors
1F	1F	1F
	StreetWires
	4 AWG Wire

StreetWires

1/0 AWG Wire

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