gain setting check

[thegreatestpenn 5,000+ posts]

First time setting gains under 1ohm, just wanted a double-check before I blow something up.

(2000wrms*0.5ohm)Sqrt = 31.6V

if I messed up LMK please

Click to read more...

 

[cj407]

Sq rt(2000x.5) = voltage....i'd say 31.7 would be better as 31.6 is only 1997 and 31.7 is 2009...unless 31.7 is over 70% of your gain....then i'd cut it back and get a line driver.

 

[thegreatestpenn 5,000+ posts]

i have an 8V linedriver dude. the gain is at its lowest on the amp, had to turn the linedriver down too to get down to 31.6V

but thanks for the suggestion. I appreciate it

 

[SomeDonnieDude 10+ year member]

Sq rt(2000x.5) = voltage....i'd say 31.7 would be better as 31.6 is only 1997 and 31.7 is 2009...unless 31.7 is over 70% of your gain....then i'd cut it back and get a line driver.

Why do you say this? Just curious as I've never heard it before.

 

[cj407]

its something that i recommend since its what ive read is the average upon which an amp starts sending clipped signal to subs.

 

[subzero 5,000+ posts]

First time setting gains under 1ohm, just wanted a double-check before I blow something up.
(2000wrms*0.5ohm)Sqrt = 31.6V

if I messed up LMK please

Sq rt(2000x.5) = voltage....i'd say 31.7 would be better as 31.6 is only 1997 and 31.7 is 2009...unless 31.7 is over 70% of your gain....then i'd cut it back and get a line driver.

its something that i recommend since its what ive read is the average upon which an amp starts sending clipped signal to subs.

sorry to thread jack.....

How would a line driver help? I have an AudioControl 4.1i and it has a line driver in it. I wanted to try and get more from my Power Acoustic PS1-3000D amp. I also have two other amps. Sugestions, maybe PM me if you want to help me set this up better. So many variables here...

 

[SomeDonnieDude 10+ year member]

its something that i recommend since its what ive read is the average upon which an amp starts sending clipped signal to subs.

You can have the gain set 100% of the way up and not clip, it just depends on the input voltage the amp is receiving. The same goes for a low gain setting, you can have an amp clip with the gain set at 20% of the way up (granted it depends on how much voltage the inputs on the amp can handle lol).

 

[n2audio 5,000+ posts]

Sq rt(2000x.5) = voltage....i'd say 31.7 would be better as 31.6 is only 1997 and 31.7 is 2009...unless 31.7 is over 70% of your gain....then i'd cut it back and get a line driver.

Why do you say this? Just curious as I've never heard it before.

its something that i recommend since its what ive read is the average upon which an amp starts sending clipped signal to subs.

You can have the gain set 100% of the way up and not clip, it just depends on the input voltage the amp is receiving. The same goes for a low gain setting, you can have an amp clip with the gain set at 20% of the way up (granted it depends on how much voltage the inputs on the amp can handle lol).

Yes, that ^.

CJ, the 70% thing you heard is a very poor generalization to try to keep people from maxing out their gains. Avoiding poor guidelines like that is the purpose of measuring your amp's output voltage with a DMM.

It would be better to just set the gain by ear than going by some maximum % not to exceed.

 

[cj407]

i do it by dmm..then by ear...only b/c i have no access to a o-scope...but still when i do a customer's car i tell them to leave it where i have it....mostly at 70% cuz the people i do installs for are **** retarded....

proof *quoted from today* i'm looking for a fiberglass enclosure or box for a tc for 2 10s.

me-what 10's

him- type s 10's

me- well i could do it.

him-like premade?

me-no build it custom for the car and sub specs

him-o nvm just need box

me-just a custom box?

him-yea i got 50

me-goodluck with that materials alone are 50+

him-dude their someone selling for 30

me-yea for a prefab that has been damaged probably

me-but go ahead and get it. a custom box will make a prefab look like childs play toy.