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Summary of Contents for Thunder4250D

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Page 2: ...s with smaller and lighter components which are more resistant to vibrations inher ent in the automotive environment Aword aboutpowerratings It isimportantfor you to know how they stack up MTXhas chosenthe most honest most conservativeway to rate our amps We showyouthe RMSpower at 12 5volts anddynamicpowerat 14 4volts However we go aboveand beyondthe call of duty We test each amplifier Thetechnici...

Page 3: ...14 4VoltsDC 200Wattsx 1into a4 Ohmload 350Wattsx 1into a 2 Ohmload S goal to NoiseRatio lOOdB A Welghted DampingFactor 200 FrequencyResponse ZOHz 200Hz MaximumInput avrms ThunderE 1 VariableBassBoostIO lad61centeredat 40Hz Crossover Variable4OHz to 200Hz 24dBioctavelow pass Dimensions 7 x 915 x 2 17 8cm x 24 m x 5 lcm 9 9 x 9 75 x 2 1 23 6cm x 24 m x 5 3cm IncludinglsoFe RMSPowermeasuredat 12 5Vol...

Page 4: ... a daisy chain configuration The RCAoutputs also allow for multiple bass amplifiers to be level controlled using one EBC 7 Speaker level Inputs This input will allow the Thunder425Dand 6500Dto operate from source units with speaker level outputs Output speaker leads from the source unit should be tied directly to the wire harness provided with the amplifier Wire harness color codes Grey Black Sour...

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Page 6: ... isthewirethatturns the amplifieronandoff Thisterminalconnectsto the ampturn onlead orthe powerantennaleadcomingfromthe sourceunit Ifthe sourceunit doesn thaveoneofthesewires you can eitherrun a wire to the batterywith a switch or useanignitioncontrolledwire to powerupthe amp If you usethe ignition controlledwire be aware that the amplifierwill be on as long as the car is on When usingthe Smart En...

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Page 8: ...ower frequencies which damage smaller speakers and passes the higher frequencies for smaller speakers like the midrange and tweeter 4 Low pass You got it this is the inverse of a high pass It blocks higher frequencies and passes the playable lower frequencies to the larger speakers like subwoofers Tvmical Sneaker Wirinq Confiuurations Mono Amplifier Impedance Requirement 2 ohm minimum 5 Impedance ...

Page 9: ...ers wiredLt Rreversed RCAinputsreversed SomeSpeakers wiredLt R reversed SomeRCAinputsreversed Thunder EQtoo high Thunder EQtoolow Speakers wiredout of phase NotusingMTXwoofers Excessive outputlevels Amplifierdefective jLo Supply t12Vtoterminal Supplyt12Vtoterminal Verifygroundconnection Replace fuse Increase volumeonheadunit Makespeaker connections Turnupgain Applypowerto signalprocessor Replace s...

Page 10: ...anty period stated above MTX requests the return of the warranty registration card completed in full immediately following purchase Proof of purchase must be provided at time of warranty claim If there is no proof of purchase provided with the warranty claim MTX reserves the right not to honor the warranty set forth above Therefore labor and parts may be charged to you This warranty doesnot apply ...

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Page 12: ...ne Lowrider Truckin Autosound andSecurity CarSound CarAudio andElectronics CarStereo Review Q Other 3 ISTHIS D Your firstcarstereo CI Replacement Upgrade 4 WHAT WAS THEMAIN REASON YOUSELECTED THISMTXPRODUCT Ll Dealer recommendation B MTXName reputation a Friend family recommendation a Product Appeal U Sound 0 Price D Other 5 WHAT ARETHREE THINGS YOULIKEMOST ABOUT THISMTXPRODUCT It Styling It Sound...

Page 13: ...put Connections AMPLIFIER CAR STEREO SOURCE UNIT Remote Power Antenna Turn On Wire REQUIRED INSTALLATION TOOLS Power Drill Utility Knife Adjustible Wrench l Crimpers l Screw Driver For installation options go to www mtxauciio com ...

Page 14: ...e Cable Prior to Installing Amplifier Power l O AWG Ground l O AWG CAUTION This amplifier may draw in excess of 150 Amps of current Upgrading the vehicle s factory battery and alternator is required For specific details contact your local authorized MTX dealer or call l 800 CALL MTX Remove Paint J from Metal For installation options go to mtxaudio com ...

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