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TA91002 Owner’s Manual
Introduction
Thank you for choosing MTX to help reach the ultimate goal with your vehicle. Adding MTX amplifi ers and
matching MTX speakers and subwoofers with StreetWires connections will put you in a better position to
hear, feel, and experience all of the music the artist intended.
Specifi cations
Primary Ratings
Power Output: 250 watts RMS x 2-channels at 4 ohm and ≤ 1% THD+N
Signal-to-Noise Ratio (1 watt): >71dB
Secondary Ratings
Power Output: 500 watts RMS x 2-
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• Smart-Engage™ Auto-Turn-On - An auto-turn-on circuit is included within the amplifi er. A remote turn-on wire is not necessary when connecting the amplifi er’s high level input to a high-powered source unit (car stereo). The amplifi er will automatically turn on when music is received through this type of connection. Note: Smart Engage™ is only active on the left input. 4. Input Sensitivity – The Input Sensitivity switch is used to set the proper input voltage range: X1 POSITION: 100mV–1V (Typ
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Before Starting MTX recommends that you have your new Thunder amplifi ers installed by an authorized MTX retailer, preferably MECP certifi ed. If you do decide to do it yourself, make sure you have read the instructions carefully and have the following tools: • Electric drill • Phillips bit or screwdriver • 1/8” bit • Wire cutters/crimpers • Safety glasses • X-Acto knife Disconnect the vehicle’s negative battery connection. Any deviation from the recommended connection procedures may ca
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3. Power Terminals – Please take proper measures during installation to protect the power wires as best you can. For example, when running the power cable from the vehicle’s battery through the fi rewall, use a fi rewall bushing for protection. Run the power wire through the interior of the vehicle under the carpet and to the amplifi er. If this is something that you do not feel comfortable doing, please ask a professional to help you. Be sure to lay the power wire away from all signal cables.
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2. Adjusting the Gain Control – Before you start setting your amp gains, be sure to defeat all EQs (“off” position). You want to set the gain levels properly BEFORE applying any equalization. Start with the source unit’s volume around ¾ of the way up, and the gain on the amp all the way down (counter- clockwise). Slowly increase the gain clockwise until the speaker starts to distort. Immediately decrease gain until the distortion goes away. This will be a good reference point on the volume c
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• Setting the Boost/Cut: Once you determined the loudest musical spot or range within the bass range of your sound system, start cutting until the response is smooth and even. You can also boost low spots within the musical range, but don’t go crazy with the boost knob. There is a lot of boost available, 12dB, but begin with a low boost setting (around 3dB) and try to stay below 6dB whenever possible. Remember that for every 3dB of additional boost you dial in, you are asking the amplifi er
