Gain Setting Tutorial

[H4cK 10+ year member]

...........bump!?

 

[ky babyn 10+ year member]

i have an alpine f 450 and 2 12 inch subs hooked up.they are in parallel hooked up to a 200w rms line. so i would. do i take peak power or rms watts. can somebody help me.

 

[sumone 10+ year member]

rms.......

 

[nitsuj 10+ year member]

When I tried to measure my Soundstream VGA320.4 to set the gains I got nothing. My volt meter didn't pickup a thing. Tried pluging it in to a wall socket and it read 120. So I must be nuts.

 

[JimJ 5,000+ posts]

did you use a sine wave? re-check all RCA's?

 

[JimJ 5,000+ posts]

during most music, the voltage will be very low...less than a volt. Only when playing test tones will you get the voltage you need to set the gains.

 

[nitsuj 10+ year member]

I used a 50 hz sine wave from Treo and didn't get a thing. I will try using leads to get a better connection for the voltmeter. It plays music when I hook up the speakers so I know my RCAs are good.

I guess it runs a Tone Sweep Calibration Routine Automatically configures and optimizes the power supply to the connected speaker load.

I wondered if that might affect it?

 

[sumone 10+ year member]

finally got my scope...setting gains with this is nothing...just keep turning it up until the sine waves start to have flat tops and back off a little //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

found out my usx4065 is underrated and the cl400 is on point.

 

[Germanlookt2 10+ year member]

How can i make the sine wave cd? is there a burning program?

 

[JimJ 5,000+ posts]

search for downloable test tones...make sure they're recorded at a 0dB reference level though.

 

[ANeonRider 10+ year member]

How can i make the sine wave cd? is there a burning program?

http://www.teamtreo.com/view.php?showme=Free_Test_Tones

Select tone, click to download.

 

[nitsuj 10+ year member]

Yeah but, what about higher frequency test tones. Need somewhere that has a 1khz tone?

 

[ANeonRider 10+ year member]

Try a Kazza, etc search?

 

[nitsuj 10+ year member]

STILL not getting any reading on my volt meter. About to throw the thing away and get a new one. If I turn the gain all the way up while running the sine wave it will read 3 volts //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif , I just don't get it.

Check the sine wave on my computer and it belched a nice healthy 50 hz tone. So I know the cd is recorded right.

I think it's my volt meter. Gonna have to see if I can get a different one, or use somebody elses for a change.

 

[btnhfan 5,000+ posts]

does it matter if its a dual sub configuration

sprt(500x (2 dual 4 ohm subs))? so how do i do it? is it at the final ohm level the amp will see?