I'm done running a .5ohm load

[groundpound4200 5,000+ posts]

set it to ohms while it was playing and read the meter at the speaker terminals and it never went about .7-.8

lol... no. Bad info ITT. That is NOT how you test your rise. That is a good way to wreck a DMM

Yes I know about efficiency, yes I know that amps are less efficient at a lower ohm load but I dont think its as big of a difference as you think especially when you put any power to it and you rise well above your resting impedance anyway. Just because it rests at .5 ohm doesn't that the amp sees .5 ohms when it's playing.

 

[CRXBMPN 5,000+ posts]

interesting thing about setting the dmm to ohms - when I do this and push down on the cone of my speaker I get readings all over h3ll and creation, so I dont like that theory of yours.

 

[Imtjnotu 5,000+ posts]

lol... no. Bad info ITT. That is NOT how you test your rise. That is a good way to wreck a DMM
Yes I know about efficiency, yes I know that amps are less efficient at a lower ohm load but I dont think its as big of a difference as you think especially when you put any power to it and you rise well above your resting impedance anyway. Just because it rests at .5 ohm doesn't that the amp sees .5 ohms when it's playing.

wasnt telling anyone how to do it was stating to crx that its how i do it.....

still i did 2900 at .5 on an amp that is ment to do 2500@1

 

[groundpound4200 5,000+ posts]

A dmm reads resistance by pushing a small amount of electricity through whatever you are trying to test and then determines impedance. What do you think is going to happen when you start applying electricity to something that is already conducting electricity. //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[CRXBMPN 5,000+ posts]

tj i will vouch for your #'s about the orion starting with a ~.5 ohm load... that is about the exact # i've seen from a few. i wish i tested mine when I had five freaking batteries and quad 1's :-\ gained 3db going from 1 ohm each to .25 , how's that for your efficiency theory

 

[Imtjnotu 5,000+ posts]

tj i will vouch for your #'s about the orion starting with a ~.5 ohm load... that is about the exact # i've seen from a few. i wish i tested mine when I had five freaking batteries and quad 1's :-\ gained 3db going from 1 ohm each to .25 , how's that for your efficiency theory

the amp does get got but i have just 2 batts and a 220 amp alt

i had to silicon some fans to the case of the amp and use an ignitionw ire to run them

 

[groundpound4200 5,000+ posts]

I agree the Orion 2500D will do those numbers, that's just not how you test impedance rise. To do it correctly you will need an AC clamp, a DMM, and simple math skills

 

[Imtjnotu 5,000+ posts]

I agree the Orion 2500D will do those numbers, that's just not how you test impedance rise. To do it correctly you will need an AC clamp, a DMM, and simple math skills

please continue.......

 

[groundpound4200 5,000+ posts]

I would but I don't think you really want me to and it's time to go home from work //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Imtjnotu 5,000+ posts]

I would but I don't think you really want me to and it's time to go home from work //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

well when u get a chance pm me on how to do it the correct way so i can go do it and see what i get....and yes im serious ground not being sarcastic

 

[LosIsATool 5,000+ posts]

The Crescendo was supposed to do 2800 at .5

 

[pimpnyou204 10+ year member]

The Crescendo was supposed to do 2800 at .5

Usually your imp rise will go up to the next ohm level atleast with crescendo they do...

.5 -> 1

1 -> 4

etc

They did a clamp of it and that's how it looked.. IMO not the most efficient amps.

 

[Ignatowski 5,000+ posts]

Screw this! Kicker ZX2500 in route. Even with a beefed up electrical it was to much to keep up with. I figure with the voltage drop i was getting I wasnt making over 2K of my Crescendo BC2K so the ZX should be a upgrade running at 2ohms

*****

 

[05trailblazer 10+ year member]

ok so when are you getting that new amp

op??

 

[LosIsATool 5,000+ posts]

Next week. I got to start the big *** amp rack this weekend. It almost covers the width of my trunk