AQX 3500.1

[ambyrell1 11]

the input voltage on this amp is .25 to 2.5 my head unit has 4 volt pre-outs. Will this cause a problem?

[wof131s 10]

This may help: http://www.carstereo.com/help/Articles.cfm?id=38

[Lucky 76 5]

the input voltage on this amp is .25 to 2.5 my head unit has 4 volt pre-outs. Will this cause a problem?

You should be fine as 4v is measured in peak. I would take a dmm to the rca itself (inside is positive and shielding is negative) on a 0db test tone of your choice, crank up the volume and see what you get as far as a reading goes. If it is over 2.5 then I would call the company up and see what they say because that number seems awfully low for input sensitivity.

[jcarter1885 995]

This may help: http://www.carstereo.com/help/Articles.cfm?id=38

This doesnt help out period, he needs to know if his radio's input is more than the amp will allow will it be an issue.

[shizzzon 461]

i think you need a line driver...

Lol.

Seriously though- what head unit do you have?

If it's an alpine, then you won't have a problem because i'm familiar with those.

If it's another brand, look for a sub level control somewhere in the settings.

This will control the preout voltage. Set this to 0 and start adjusting gain with head unit at 3\4 of the way up.

If the amp is measuring out as clipping to early, turn the sub control down in to the negative range.

[ambyrell1 11]

my head unit is a kenwood hd942u, thanks shizzzon.

[Aaron Clinton 2,372]

2.5volts? What is this 1998?