Menu
Forum
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Car Audio Discussion
General Car Audio
Car Audio Build Logs
Car Audio Equipment
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Help
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Car Audio Classifieds
Car Audio Wanted
Classifieds Member Feedback
Gallery
New media
New comments
Search media
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Join
Test
Forum
Search
Search titles only
Search titles only
Log in / Join
Search
Search titles only
Search titles only
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Menu
Reply to thread
Forum
Car Audio Equipment
Head Units
Where Should My HU EQ Settings Be Set At When I Set My Sub Amp Gain?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="Chromatic" data-source="post: 8225138" data-attributes="member: 659121"><p>Been through this -- Can answer this with 100% confidence //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif</p><p></p><p>Set your <strong>EQ flat</strong>. I'd suggest <strong>reset</strong>ting the <strong>Headunit to Default/Factory settings</strong> (remove power if you need to for a minute).. Then double check your EQ, make sure it's flat.</p><p></p><p>Set your <strong>Volume </strong>on headunit to <strong>75-80%</strong> . For example, if your headunit goes to say 40,.. set it to 30 (which would be 75%).</p><p></p><p>If you have a<strong> bass knob</strong>,.. hook it up,.. and set it to <strong>MAX</strong>.</p><p></p><p>What else.. hrmm.. Keep everything essentially at Zero (defaults) on the headunit.</p><p></p><p>You know all of this .. But then have your speaker wires OUT of the amp.. so you don't drive your self nuts setting gains -- I like to put my Pos and Negative leads from my DMM into the Pos and Neg terminal(s) of the speaker I am setting (actually lightly screw them in) -- Makes it so much easier to manipulate things without the leads falling out, etc.</p><p></p><p>Obviously, slowly turn the gains till you reach the voltage you have calculated (RMS Voltage = Sqrt(OhmsxWattage)) -- Or, just use this calculator (it's my favorite one... you input the Ohms (ie: 4) and the RMS rating you are seeking.. then click calculate and bam there's your voltage!</p><p></p><p><strong>This is my favorite Voltage Calculator:</strong></p><p></p><p><a href="http://www.sengpielaudio.com/calculator-ohm.htm" target="_blank">Voltage current resistance and electric power general basic electrical formulas calculations calculator formula calculating energy equation power watts understandimg general electrical pie chart electricity calculation - electrical voltage power form</a></p><p></p><p><strong>After</strong> you get your <strong>gains set</strong> to proper voltage,.. THEN <strong>tweak</strong> the <strong>headunit</strong> up.. Most people agree with this method.</p><p></p><p>Something to consider though.. Many headunits have a Subwoofer "level" on them -- I'd go ahead and push that to max on the headunit before setting the sub gain -- As I've found when it's not at the max level on headunit, the RCA pre-outs for the sub tend not to push the full 4v (or whatever yours are rated at) YMMV.</p><p></p><p>Also, on the tone -- Use what tone you want.. Anything will work as long as you aren't actively attenuating it via X-over.. I used 40hz -0dB initially.. but switched to 79hz -0dB and got a better result from it (I listen to rock, no rap).. Though it really shouldn't matter.. voltage is voltage.</p><p></p><p>Here's a <em><strong>great set of test tones </strong></em>(I'm sure you have them.. but what they heck):</p><p></p><p><a href="http://realmofexcursion.com/downloads.htm" target="_blank">Realm of Excursion</a></p><p></p><p><strong><span style="color: blue">Have fun with it!</span></strong></p></blockquote><p></p>
[QUOTE="Chromatic, post: 8225138, member: 659121"] Been through this -- Can answer this with 100% confidence [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] Set your [B]EQ flat[/B]. I'd suggest [B]reset[/B]ting the [B]Headunit to Default/Factory settings[/B] (remove power if you need to for a minute).. Then double check your EQ, make sure it's flat. Set your [B]Volume [/B]on headunit to [B]75-80%[/B] . For example, if your headunit goes to say 40,.. set it to 30 (which would be 75%). If you have a[B] bass knob[/B],.. hook it up,.. and set it to [B]MAX[/B]. What else.. hrmm.. Keep everything essentially at Zero (defaults) on the headunit. You know all of this .. But then have your speaker wires OUT of the amp.. so you don't drive your self nuts setting gains -- I like to put my Pos and Negative leads from my DMM into the Pos and Neg terminal(s) of the speaker I am setting (actually lightly screw them in) -- Makes it so much easier to manipulate things without the leads falling out, etc. Obviously, slowly turn the gains till you reach the voltage you have calculated (RMS Voltage = Sqrt(OhmsxWattage)) -- Or, just use this calculator (it's my favorite one... you input the Ohms (ie: 4) and the RMS rating you are seeking.. then click calculate and bam there's your voltage! [B]This is my favorite Voltage Calculator:[/B] [URL="http://www.sengpielaudio.com/calculator-ohm.htm"]Voltage current resistance and electric power general basic electrical formulas calculations calculator formula calculating energy equation power watts understandimg general electrical pie chart electricity calculation - electrical voltage power form[/URL] [B]After[/B] you get your [B]gains set[/B] to proper voltage,.. THEN [B]tweak[/B] the [B]headunit[/B] up.. Most people agree with this method. Something to consider though.. Many headunits have a Subwoofer "level" on them -- I'd go ahead and push that to max on the headunit before setting the sub gain -- As I've found when it's not at the max level on headunit, the RCA pre-outs for the sub tend not to push the full 4v (or whatever yours are rated at) YMMV. Also, on the tone -- Use what tone you want.. Anything will work as long as you aren't actively attenuating it via X-over.. I used 40hz -0dB initially.. but switched to 79hz -0dB and got a better result from it (I listen to rock, no rap).. Though it really shouldn't matter.. voltage is voltage. Here's a [I][B]great set of test tones [/B][/I](I'm sure you have them.. but what they heck): [URL="http://realmofexcursion.com/downloads.htm"]Realm of Excursion[/URL] [B][COLOR=blue]Have fun with it![/COLOR][/B] [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Equipment
Head Units
Where Should My HU EQ Settings Be Set At When I Set My Sub Amp Gain?
Top
Menu
Home
Refresh