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Need help adjusting amp
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<blockquote data-quote="mast240" data-source="post: 7444114" data-attributes="member: 631695"><p>so many thing wrong with this post.</p><p></p><p>OP... your settings on your amp will be pretty simple.</p><p></p><p>if your running just the coaxials and components, with no sup, set your crossover to "full". LP and HP are only used when staging your sound... I.E. running a sub in the rear, and 2 seperate amps, one for bass, and one for highs. your components and coax's will have built in crossovers, to filter out the unwanted highs for the woofers, and lows for the tweets.</p><p></p><p>to properly tune your amp, you'll want to set all the settings on your HU to 0, turn you bass boost to 0 (always have this set to zero, as it can cause clipping issues).</p><p></p><p>you're going to want to find the clipping point of your amp, and this is accomplished with setiing your gain ("input sensitivity").</p><p></p><p>to do this, you'll need a DMM (Digital multimeter), and a little bit of time. (an o-scope is the "proper way" to set them, but you can get by with just a DMM)</p><p></p><p>your going to test your output terminals (speaker out) for AC voltage, while adjusting your gain (input sensitivity)... here are the following steps of how to do so...</p><p></p><p>1. find a 1khz test tone (if you have an android or Iphone, you can download a tone creator... or you can just find the tone online, and burn it to a cd)</p><p></p><p>2. set your HU to 3/4 volume level (if it goes up to 40, set it to 30, etc..)</p><p></p><p>3. find the AC voltage you'll be shooting for, i will give you an example how to:</p><p></p><p>take the "rated rms" wattage of each channel of you amp, lets say i have a 50x4 watt rms amp</p><p></p><p>figure out the impendance of your speaker (ohm load) ... most components are 4 ohm.</p><p></p><p>do this math : sqaure root of (wattage x impendance)</p><p></p><p>sqrt(50x4) = 14.142</p><p></p><p>14.142 is the AC voltage you will be looking for.</p><p></p><p>4. now, once you figured out your AC voltage, take your DMM, hook it up to one channel of your amp, play your 1khz test tone at 3/4 volume, and starting with the gain (input sensitivity) all the way down, start turning it, until you reach the AC voltage you got from previous math eqution</p><p></p><p>this is what is called your "clipping" point... it is the point where your amp basiclly begins sending a "distorted" signal to your speakers. (theres more to it then that, but that is the simplest explination of it)</p><p></p><p>5. once you find this "clipping point, turn your gain setting back a little bit... and your amp will be set... since you have a 4ch with 2 seperate gains, you'll repeat this step for both settings.</p><p></p><p>remember, the numbers i used in this example, are just that... an example. your will be different, depending on your amps rated wattage, and the impendance load of your speakers. for a "properly" tuned amp, everything on your HU should stay flat, though you can probably get away with minor adjustments to your liking... just dont turn the bass all the way up, bass boost to full, loud to full... any of that, because it will cause your signal to distort... and your amp to clip.</p></blockquote><p></p>
[QUOTE="mast240, post: 7444114, member: 631695"] so many thing wrong with this post. OP... your settings on your amp will be pretty simple. if your running just the coaxials and components, with no sup, set your crossover to "full". LP and HP are only used when staging your sound... I.E. running a sub in the rear, and 2 seperate amps, one for bass, and one for highs. your components and coax's will have built in crossovers, to filter out the unwanted highs for the woofers, and lows for the tweets. to properly tune your amp, you'll want to set all the settings on your HU to 0, turn you bass boost to 0 (always have this set to zero, as it can cause clipping issues). you're going to want to find the clipping point of your amp, and this is accomplished with setiing your gain ("input sensitivity"). to do this, you'll need a DMM (Digital multimeter), and a little bit of time. (an o-scope is the "proper way" to set them, but you can get by with just a DMM) your going to test your output terminals (speaker out) for AC voltage, while adjusting your gain (input sensitivity)... here are the following steps of how to do so... 1. find a 1khz test tone (if you have an android or Iphone, you can download a tone creator... or you can just find the tone online, and burn it to a cd) 2. set your HU to 3/4 volume level (if it goes up to 40, set it to 30, etc..) 3. find the AC voltage you'll be shooting for, i will give you an example how to: take the "rated rms" wattage of each channel of you amp, lets say i have a 50x4 watt rms amp figure out the impendance of your speaker (ohm load) ... most components are 4 ohm. do this math : sqaure root of (wattage x impendance) sqrt(50x4) = 14.142 14.142 is the AC voltage you will be looking for. 4. now, once you figured out your AC voltage, take your DMM, hook it up to one channel of your amp, play your 1khz test tone at 3/4 volume, and starting with the gain (input sensitivity) all the way down, start turning it, until you reach the AC voltage you got from previous math eqution this is what is called your "clipping" point... it is the point where your amp basiclly begins sending a "distorted" signal to your speakers. (theres more to it then that, but that is the simplest explination of it) 5. once you find this "clipping point, turn your gain setting back a little bit... and your amp will be set... since you have a 4ch with 2 seperate gains, you'll repeat this step for both settings. remember, the numbers i used in this example, are just that... an example. your will be different, depending on your amps rated wattage, and the impendance load of your speakers. for a "properly" tuned amp, everything on your HU should stay flat, though you can probably get away with minor adjustments to your liking... just dont turn the bass all the way up, bass boost to full, loud to full... any of that, because it will cause your signal to distort... and your amp to clip. [/QUOTE]
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