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    Intercooler's Avatar
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    Does pre-out voltage make a huge difference?

    I was talking to a guyat the audio shop that does SPL competitions and has a few trophies to his credit and he said the pre-out voltage on a head unit makes a HUGE difference in overall power. He talked about it like it was steroids or something Is this a true statement? I am still learning so I just take it all in and be quite. What head unit holds the title for most pre-out? What Pioneer and Kenwood units has the most pre-outs?

    BTW... He said Kenwood HU's are the best for SPL



    2001 Honda Civic EX Coupe
    HU- Eclipse CD-5000
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    House- Samsung 4665F/Def Tech Mythos 8's/Dayton 15" Sub Kit/Onkyo 605/Harmony 890
    Refs: B-06stxf150, S-tmcilroy, B-lastcall




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    alphakenny1's Avatar
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    Re: Does pre-out voltage make a huge difference?

    no, it doesn't SQ wise. in a nutshell higher the preout voltage the less your amp has to work (ie lower gain) and hence reduces noise.



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    Re: Does pre-out voltage make a huge difference?

    you will have higher head room.




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    Re: Does pre-out voltage make a huge difference?

    So you can go louder then.



    They also talked a decent amount about the Eclipse line and I think on of those had the highest pre-out from what I overheard. I don't know much about Eclipse but are they good?



    2001 Honda Civic EX Coupe
    HU- Eclipse CD-5000
    F&R Amp- MB Quart Qaa4250 1000 Watt 4-Channel
    F- CDT HD52 5.25" With 1" Silk Tweets and M-6 6.5" Mids In The Doors(Three Way)
    R- CDT M-6's
    Sub Amp- Hifonics BXi2006D Brutus 2000 Watt D Mono
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    House- Samsung 4665F/Def Tech Mythos 8's/Dayton 15" Sub Kit/Onkyo 605/Harmony 890
    Refs: B-06stxf150, S-tmcilroy, B-lastcall

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    double_a's Avatar
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    Re: Does pre-out voltage make a huge difference?

    Eclipse are GREAT hu's and their higher modles have 8v pre-outs.




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    Re: Does pre-out voltage make a huge difference?

    no, you can't get louder because on a 8v preout HU, if you barely turn up the gain and immediately you might send a clipped signal. thats what happened when i was setting the gains on my sub amp, my HU clipped at 77/80, went to amp to turn up the gain, it almost clipped as i just turned the gain knob. it just enables your amp to not work as hard.

    and yes eclipse basically has the highest preouts, 8v. Eclipse are awesome HUs.



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    Re: Does pre-out voltage make a huge difference?

    This guy had a Kenwood with 5V's. I think my Pioneer is only 2V so am I leaving something on the table by not have 5V + or is it something I won't really see or hear?



    2001 Honda Civic EX Coupe
    HU- Eclipse CD-5000
    F&R Amp- MB Quart Qaa4250 1000 Watt 4-Channel
    F- CDT HD52 5.25" With 1" Silk Tweets and M-6 6.5" Mids In The Doors(Three Way)
    R- CDT M-6's
    Sub Amp- Hifonics BXi2006D Brutus 2000 Watt D Mono
    Subs- (2) FI-Q 12" in a 1.26 Cu^Ft./Per Side Unported Box
    Battery- Kinetic 1400
    House- Samsung 4665F/Def Tech Mythos 8's/Dayton 15" Sub Kit/Onkyo 605/Harmony 890
    Refs: B-06stxf150, S-tmcilroy, B-lastcall

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    Re: Does pre-out voltage make a huge difference?

    goin from 4v (panasonic) to 5v (kenwood) i heard a HUGE difference.... had to turn my gains down a lot after hookin up the new HU.




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    Re: Does pre-out voltage make a huge difference?

    i hate having 2v preamps..because i have to turn it up to like 40/63 to just hear sumthing




    99 G cherokee
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    Re: Does pre-out voltage make a huge difference?

    I wish I would have found this site before I started. Oh well... now I can change it as I go.



    2001 Honda Civic EX Coupe
    HU- Eclipse CD-5000
    F&R Amp- MB Quart Qaa4250 1000 Watt 4-Channel
    F- CDT HD52 5.25" With 1" Silk Tweets and M-6 6.5" Mids In The Doors(Three Way)
    R- CDT M-6's
    Sub Amp- Hifonics BXi2006D Brutus 2000 Watt D Mono
    Subs- (2) FI-Q 12" in a 1.26 Cu^Ft./Per Side Unported Box
    Battery- Kinetic 1400
    House- Samsung 4665F/Def Tech Mythos 8's/Dayton 15" Sub Kit/Onkyo 605/Harmony 890
    Refs: B-06stxf150, S-tmcilroy, B-lastcall

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    rocky 59's Avatar
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    Re: Does pre-out voltage make a huge difference?

    i had 2v preouts but then i got an EQ that up them to 7v i liked it. btw the Eq is for sale



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    alphakenny1's Avatar
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    Re: Does pre-out voltage make a huge difference?

    its a nice thing to have BUT shouldn't be the sole reason why you buy an HU. its just a nice thing to have thats all.



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    bay area people need some custom work done? pm me. here's some work that we've done:
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    http://s15.photobucket.com/albums/a3...man52/Install/
    http://www.v6performance.net/forums/...ad.php?t=76937

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    Re: Does pre-out voltage make a huge difference?

    what happened to proper gain setting? preout voltage isn't a big deal




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    Re: Does pre-out voltage make a huge difference?

    also during normal listening, you'll never get the advertised preout voltage anyways




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    Re: Does pre-out voltage make a huge difference?

    Quote Originally Posted by rocky 59
    i had 2v preouts but then i got an EQ that up them to 7v i liked it. btw the Eq is for sale
    ygpm


    sorry for the thread jack



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