2 VOLT vs 4 VOLT preamp output from head unit

[bobo244 10+ year member]

My head unit is has a 2V preamp outputs. What is the advantage of having a 4V preout over a 2V? Is it worth it to buy a new headunit for 4V preouts?

PS - Im running a Concept CD-2410 2400w rms amp at 1 ohm.

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[bobo244 10+ year member]

Advantage = lower gain settings = higher signal-to-noise ratio

Thanks alot. Is it worth it to upgrade my head unit for a 4 Volt one?

 

[TwistedVisions 10+ year member]

Or even better you can look into the eclipse's 5 volt and 8 volts the only problem is there not detachable or I would have got one //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif there webpage is http://www.eclipse-web.com/ oh and the more voltage the better :thumbsupw

 

[helotaxi 5,000+ posts]

More voltage is thoeretically better, but rarely worth the upgrade for that feature alone. It will let you run your gain on the amp a bit lower to get full power, but the difference is small and with a good amp inaudible. If you are just concerned about your sub, it won't matter at all.

 

[sumone 10+ year member]

does a lower gain setting mean less thermal heat in/on the amp? was riding around for a couple of hours and both my amps went into protection mode and the tweeters of the cl-61s cut out (not all at the same time though).

the tweeters I just don't know what's wrong and why they cut out (the guy from cdt said due to distortion, but I would be running them up at the same level for a specified length of time and then they all of a sudden cut out after X minutes)

so what I'm going on right now is that the HU I have distorts early (I run it around 20-24/33 and they still cut out), so I have the amp gained at almost the lowest voltage so that a lower HU volume could acheive similar output, to no avail...

 

[helotaxi 5,000+ posts]

The gain setting only affect the heat generated by the amp if it is set too high and the amp is clipping. A clipping amp will overheat quickly.

 

[MazdaSpeed99]

The gain setting only affect the heat generated by the amp if it is set too high and the amp is clipping. A clipping amp will overheat quickly.

I have used so many head units, with difference range voltage.

2volt, 4volt,5volt,8volt

I didn't notice any difference except the gain doesn't have to be set so high to get its full potential on the amp.

 

[denim 5,000+ posts]

I believe in stupid levels of voltage