HU pre-out & amp gains!

[treiber67 10+ year member]

So i have a head-unit that puts out around.5-.6 volts and im using a y splitter from the mono out-put. The thing is my amp gains have to be set to 75-80% to achieve the disired level of bass. Along with the gains cranked up i also have the bass boost at like 6db..

As for what im running its a hifonics glx 1400.1d pair with two 15inch kicker cvrs @ 1ohm.

Anysugguestions? I dont want to damage the amplifier having it cranked up the high but the thing is it really doesnt get that hot.

Dont use the gain as a volume knob....i know but seems to me at this point it has to be done.

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[maylar 10+ year member]

As long as you can hit the power level you want, you're good. It doesn't make the amp "work harder" to have the gain up high.

 

[Exist_ential 10+ year member]

does the headunit have a sub level control? and are you saying the HU puts out .5 - .6 or 5-6 those dots make a HUGE difference. what headunit do u have?

 

[treiber67 10+ year member]

It's output volt is around .5, I called the manufacture and that's what they told me. It's a mono output with no sub control.

 

[maylar 10+ year member]

What HU would that be?

 

[tommydh 10+ year member]

If you pat attention to the Hifonics amp the gain is actually marked in HU output and all the way up is .2V so if your at .5-.6 it will be way up.

 

[nismos14 5,000+ posts]

Get a new HU if you want to fix the "issue".

 

[treiber67 10+ year member]

Everyone talks about gains and not using it as a volume knob, well by me having it at 80% to meet my .5 volt output isnt that kinda using it as a volume knoB? I mean the amp doesnt really get that hot butt it does pop 120amp fuses under the good if i pound for to long. I am just trying to perserve the life of my amplifier thats all. But Once i hit the lottery steve here i come!

 

[Exist_ential 10+ year member]

Seriously man, get a deck with a dedicated sub out and at least 2v out.

 

[nismos14 5,000+ posts]

No, you're using it how you're supposed to. To match the input voltage to the ouput.