TarponPride09 Posted October 30, 2007 Report Share Posted October 30, 2007 ive already decided that im ordering either a pioneer avh-p4900dvd or an pioneer avh-5900dvd. the 4900 has a 2.2 volt preamp voltage, while the 5900 has 4 volt outputs. is there a huge difference, i will be running a t2k1 and a MA audio 4ch amp, will the voltage difference be that big of a change? thanks Quote My Myspace My 2002 Cadillac Escalade Build Link to comment Share on other sites More sharing options...
pstone11 Posted October 30, 2007 Report Share Posted October 30, 2007 Yes, it is a really noticable change. I went from a 2.2v pioneer to a 4v alpine, and the difference was crazy, I had to go and back all my gains down quite a bit. Quote Check out StoneSounds to see my recent builds.Or look at the Flying White Facebook Page! Link to comment Share on other sites More sharing options...
TarponPride09 Posted October 30, 2007 Author Report Share Posted October 30, 2007 but after you reset your gains, did it sound the same or better? Quote My Myspace My 2002 Cadillac Escalade Build Link to comment Share on other sites More sharing options...
pstone11 Posted October 30, 2007 Report Share Posted October 30, 2007 It sounded pretty much the same - It is just the fact that the amps are now putting out the same amount of power with less gain.. this = happier more efficient amps = happier me. Quote Check out StoneSounds to see my recent builds.Or look at the Flying White Facebook Page! Link to comment Share on other sites More sharing options...
TarponPride09 Posted October 30, 2007 Author Report Share Posted October 30, 2007 so i can get the 4900 (2.2v) but i have to set my gains higher, thus making the amps less efficient, is it harmfrul that you have to set the gains up higher? Quote My Myspace My 2002 Cadillac Escalade Build Link to comment Share on other sites More sharing options...
sactownstang Posted October 30, 2007 Report Share Posted October 30, 2007 I would guess the lower the gains the less harder the amp works. Thus making it last longer.... Quote Link to comment Share on other sites More sharing options...
audiofanaticz Posted October 30, 2007 Report Share Posted October 30, 2007 It sounded pretty much the same - It is just the fact that the amps are now putting out the same amount of power with less gain.. this = happier more efficient amps = happier me. ok, I got to agree with all of that accept for the part where it goes like "this = happier more efficient amps = happier me". How is the amp working more efficient? Your amp is still putting out the same power while having the gain turned down more becuase your new HU has higher volt preamp outputs. If you have your gain set correctly with a o-scope, or even a dmm, your amp will work just as hard as it did before to make its wattage with either a higher gain setting for low volted preamps, or a lower gain setting for higher preamps. All a headunit does with higher volt preamp outputs does is make it so you dont have to crank your gain up high. BUT turning your gain up high WILL NOT hurt your amps if your headunit does have low volted preamp outs like pioneer does AS LONG AS YOU SET YOUR GAINS CORRECTLY. I have a funny feeling that this is why Pioneer does not stress the high volted preamp outputs because it dont pay to stick extra money into something that does not matter. Quote Link to comment Share on other sites More sharing options...
zaxfire69 Posted October 30, 2007 Report Share Posted October 30, 2007 Hey Audio. You have any idea how many volts of preamp our amps will take ?...The Spl Dynamics. Quote Link to comment Share on other sites More sharing options...
audiofanaticz Posted October 30, 2007 Report Share Posted October 30, 2007 as in input voltage through the rca's? 200mV - 6V I think its the same as yours, if they are capabil of recieving more, Im not sure. I thought I heard 9volt someplace but dont really remember. Quote Link to comment Share on other sites More sharing options...
sactownstang Posted October 30, 2007 Report Share Posted October 30, 2007 higher voltage is better for noise reduction ??? Quote Link to comment Share on other sites More sharing options...
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