MTX Audio Jackhammer Subwoofer Car Speaker User Manual


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Parallel Confi guration
T9922-44 – Wiring the voice coils in a parallel confi guration will have a total fi nal load of 2 Ohm. Connect each
of the dual voice coil’s positive terminals together so that they share the same source (amplifi er). Do the same
for the negative terminals. This can be done with the included shorting bars. This connection is ideal when
using two Thunder TA92001 amplifi ers.
T9922-22 – Wiring the voice coils in a parallel confi guration will have a total fi nal load of 1 Ohm. Connect each
of the dual voice coil’s positive terminals together so that they share the same source (amplifi er). Do the same
for the negative terminals.
Note: The wiring of the dual voice coils will affect impedance for the amplifi er system. Care must be taken
to assure that the resulting impedance does not exceed the amplifi er’s requirements.
WIRING OPTIONS
Often overlooked, the installation components used to connect the entire system need to match the maximum
capability of the system or you will lose performance. MTX Audio recommends using StreetWires 4 AWG
cable as the speaker wire.
Dual Voice Coil Wiring
JackHammer Superwoofers are available in a dual 2 Ohm (T9922-22) or dual 4 Ohm (T9922-44) voice coil
confi guration for either SPL or SQL uses. The voice coils are labeled VC1 and VC2.
Note: Both voice coils should always be connected. See the section on Strapping Thunder Amplifi
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