just checkin

jgs07 · Post by **jgs07** » Fri Feb 13, 2009 8:17 pm

set my gain on my amp using a multimeter, http://www.harborfreight.com/cpi/ctaf/d ... mber=90899 this one right here i did everything i should have. rms of my amp 1600x4ohm(speak ohm load)=6400 square root=80 on the multimeter it read 00.8. is this correct? aslo quick question where i put the speaker ohm load is it the ohm load of the speaker or do i put what kind of load is being presented? i have them wired 1 ohm.

k0rnyfr33k · Post by **k0rnyfr33k** » Fri Feb 13, 2009 10:36 pm

i havent done this in a long time.... but i think it needs to 80.. like if it said 8.8 i needs to read that.... not sure im tired as hell so if im wrong sombody please correct....wait for the others b/c i dont want to be responsible for blowing your whole system up...lol.... just trying to help though

k0rnyfr33k · Post by **k0rnyfr33k** » Sat Feb 14, 2009 10:01 pm

anybody else gunna comment on this besides me?

Ryan from Ohio · Post by **Ryan from Ohio** » Sat Feb 14, 2009 10:28 pm

Well if you run your numbers correctly you should show 80 on your DMM. But you have to be playing a track and you need to have the volume up.

Also note this is AC Voltage, so it VARIES! So you gotta watch the meter until it hits the number.

Bwcad1 · Post by **Bwcad1** » Sun Feb 15, 2009 7:40 am

use a test tone not music.

jgs07 · Post by **jgs07** » Sun Feb 15, 2009 7:15 pm

i did use a 50 hz tone. are my calculations correct tho?

jgs07 · Post by **jgs07** » Tue Feb 17, 2009 8:39 pm

anyone????????? is there something i did wrong????????????

k0rnyfr33k · Post by **k0rnyfr33k** » Tue Feb 17, 2009 9:24 pm

jgs07 wrote:anyone????????? is there something i did wrong????????????

I believe your calculations are correct i did it before and i got 80. But do not quote me on this, i dont want to be the result of your subs blowing

k0rnyfr33k · Post by **k0rnyfr33k** » Wed Feb 18, 2009 3:19 pm

Just for jgs's reassurance, and to make sure im right. The calculations are correct,right?

Ryan from Ohio · Post by **Ryan from Ohio** » Wed Feb 18, 2009 3:45 pm

He probably has the DMM set wrong.

Those cheap DMMs are weird at time. If you needed 80 and it was showing .8 I bet your good.

80 and .8 is a HUGE difference...