Gain Controls - Help

[Mark_ab 5,000+ posts]

My HU (SonyCDX620) has 4vrms, how should I have the gain set on my amp so my subs are recieving the best signal w/ no clipping etc?//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

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[billetz23 10+ year member]

mark ab-- turn your amp gain all the way down

then turn your headunit (sony) about 3/4 of maximum

then gradually turn the amp gain up until

the sub starts to distort then gradually turn gain

a little back till sub stops distorting

depending on what amp you are using (manufacture)

it may start to distort with little amp gain

or more amp gain

 

[Unregistered]

leave the gains at zero

 

[Mark_ab 5,000+ posts]

Okay, I will try that. Now what if my subs don't distort? (I have two perfects)

 

[billetz23 10+ year member]

mark ab-- set your hu 3/4 of maximum then as you

gradually turn up the amp gain your

sub volume will start to rise keep adjusting gain

till your sub starts to sound bad ( broken up distorted)

then turn gain a little back. setting your headunit

and your amp this way you will have your amp and

headunit set for full power befor (clipping, distortion)

occur . give it a try

 

[Mark_ab 5,000+ posts]

What should I have the HU Bass and Sub control at? Thanks for the help.

 

[mrray13 10+ year member]

have the bass set at whatever you think it sounds best thru your remaining speakers without distortion.

the sub control, i've heard two different things.

1: turn it all the way up and adjust your gains. that way you can turn it down if you want and may not have to use too much gain.

2: is just the opposite. turn it all but off and adjust your gain. again it's so you can adjust the bass level without having to re-adjust the gain. the bad thing here is you will need to crank the gain up a little more which could result in more distortion.the advantage is that you always have a little more at your fingertips,whereas the first method you still have more but you got to go to the amp to adjust.

hope that helps.

 

[Mark_ab 5,000+ posts]

Excellent, thanks for the help.