2V vs. 5V Head unit?

[mutt_hollon 10+ year member]

For a SQL system. How much difference would a 5V head unit be compared to a 2V head unit if both are Pioneers? What differences would it actually make?

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[Looney_Tune 10+ year member]

preout voltage means absolutely nothing stupid boy!!! lol j/p asked the same type of question and got "flamed".

 

[Suomi 10+ year member]

This thread is just a little bit down the page:

http://www.caraudio.com/forum/showthread.php?t=192736

 

[mutt_hollon 10+ year member]

sorry im at work and i cant really search now...i just check every 10 min for see if i get a reply.....sorry for not searching

 

[ultimate157 5,000+ posts]

The higher the perout voltage, the less you have to turn up the gain on your amplifiers. I would prefer a preout of 5v or even 8v over 2v because I have to turn the gain on my amp past 3/4 gain just to get it to sound good (at a 4 ohm load).

And yes the gain is set properly. Checked with DMM and oscilloscope.

 

[iceteebone 5,000+ posts]

::shakes head::

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[neonrt 10+ year member]

i prefer a higher preout voltage, as it seems to sound better. i had a 1volt sony deck, set my gains right, and it sounded good. went to a 2.2v deck, same amp, speakers, and everything, heck even same brand hu, set my gains again, and i had louder, clearer bass. others i know say the same thing. not going against theory, but you know how theory, and real life dont quite jive. in theory its like ice t said, it should not effect sound at all, but in the real world, it does make a difference.

 

[.::DuD3::. 10+ year member]

i prefer a higher preout voltage, as it seems to sound better. i had a 1volt sony deck, set my gains right, and it sounded good. went to a 2.2v deck, same amp, speakers, and everything, heck even same brand hu, set my gains again, and i had louder, clearer bass. others i know say the same thing. not going against theory, but you know how theory, and real life dont quite jive. in theory its like ice t said, it should not effect sound at all, but in the real world, it does make a difference.

you do know that gain doesn't effect how much power the amp produces right? //content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif

 

[yacob.naif 10+ year member]

Ya this was cleared up in an earlier thread.

SQ differences between decks are likely due to quality differences between the units, not pre-amplifier output voltage.

 

[wilzyx 5,000+ posts]

you do know that gain doesn't effect how much power the amp produces right? //content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif

wtf are you smoking?

 

[mtdewelf 10+ year member]

//content.invisioncic.com/y282845/emoticons/popcorn.gif.32dd9e22fd77e77bc3c907062768fcd2.gif

 

[wilzyx 5,000+ posts]

lol

 

[.::DuD3::. 10+ year member]

wtf are you smoking?

I think his question is "Does gain level cause the amplifier to work harder/harder on the amp/ etc"

No.

//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif, but i think i didn't word it the best way.

 

[wilzyx 5,000+ posts]

but gain totally affects how much power an amp puts out, why do think it gets louder/softer when you change the gains? and no one has said anything about making an amp work harder.

 

[squeak9798 5,000+ posts]

but in the real world, it does make a difference.

Completely incorrect.

But, since a higher preout voltage sounds better, I presume you have your volume maxed out every time you listen to your stereo.....because, you know, it would sound best then.

You compared completely different decks. Which means you were comparing much more than simply the preout voltage.