MTX Audio MTX Thunder TA7804 user manual

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TA7804 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: 100 watts RMS x 4-channels at 4 ohm and ≤ 1% THD+N
Signal-to-Noise Ratio (1 watt): 75dB
Secondary Ratings:
Power Output: 200 watts RMS x 4-c

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4. Input Sensitivity – The Input Sensitivity switch is used to set the proper input voltage range: X1 POSITION: 100mV–1V (Typically for RCA Input) X10 POSITION: 1V–10V (Typically for Speaker Level Input) 5. Stereo Gain Control – This feature is used to fi ne-tune the input sensitivity of the amplifi er to the source unit’s output level. 6. Variable Hi, 12dB / Low, 24dB Mono @40Hz–350Hz X-over – This control allows the user to choose the exact low pass or high pass frequency range the amplifi er w

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Disconnect the vehicle’s negative battery connection. Any deviation from the recommended connection procedures may cause serious damage to the amplifi er, speakers, and/or vehicle electrical system. Please double check the connections before turning the system on. Installation Mounting Place your Thunder amplifi er at the predetermined mounting location. Use a felt pen to mark the exact position of the mounting holes on the mounting surface. Set the amplifi er aside. Then with a sharp, precise

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• +12V: This is the main power input for the amplifi er and must be connected directly to the positive terminal of the car battery for the amplifi er to operate properly. It is important that a main fuse is installed a maximum of 18” from the battery. • GND: This is the ground connection for the amplifi er and must be connected directly to the metal chassis of the vehicle for the amplifi er to operate properly. A properly grounded amplifi er can be run harder and longer than a poorly grounded

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3. Adjusting the Hi, 12dB / Low, 24dB Mono @ 40Hz–350Hz Variable X-over Frequency Controls – • Setting for Subwoofers: First enable the electronic crossover by selecting the “ON” position of the X-OVER switch, and then select the “L-PASS” (low pass) position on the L-PASS/H-PASS switch. Next, using “L- PASS FREQ” you have control over what frequency you want your amp to start crossing over your signal. By turning this control all the way counter-clockwise you are crossing the signal over at

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Trouble Shooting Read this if you want to be a do-it-yourselfer or give us a call at 800-CALLMTX. PROBLEM CAUSE SOLUTION No LED indication No +12V at remote connection Supply +12V to terminal No +12V at Power connection Supply +12V to terminal Insuffi cient ground connection Verify ground connection Blown power fuse Replace fuse LED on, no output Volume on head unit off Increase volume on head unit Speaker connections not made Make speaker connections Gain control on amplifi er