any way to measure amperage being pulled?

[tommyk90 5,000+ posts]

what the hell does speed have to do with anything?

I'm assuming he's talking about voltage. Higher rpm's=more amperage from the alt=more power.

Though the same effect could be accomplished by just revving the engine when its in park. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[lilmaniac2 5,000+ posts]

I'm assuming he's talking about voltage. Higher rpm's=more amperage from the alt=more power.

but higher speed does not mean higher engine rpm //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

at least since the invention of the transmission it doesnt lol

 

[tommyk90 5,000+ posts]

but higher speed does not mean higher engine rpm //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
at least since the invention of the transmission it doesnt lol

Edited my post. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

And yeah, transmissions ftw.

 

[microhaxo 10+ year member]

well generally if im not moving im under 1000rpm when im driving at 45mph im at about 2k rpm.

 

[microhaxo 10+ year member]

Shiat, i get 16.8 A when using the A~ 200 setting.

around 500w :|

Thats depressing.. Ill try again by revving the engine.

 

[lilmaniac2 5,000+ posts]

Shiat, i get 16.8 A when using the A~ 200 setting.
around 500w :|

Thats depressing.. Ill try again by revving the engine.

now for the cool thing

voltage / amperage = actual impedence

32v / 16.8 amp = ~2ohms

 

[microhaxo 10+ year member]

I dont think that is right at all.. I just tried it again and i cant get any reading.. Am i supposed to clamp ONE of the wires or BOTH together?

Also i have THESE settings in the section of A with ~

1000

200

20

Which one is appropriate to use..

When i pick 200 i get 00.0 output and when i pick 20 it gives me like 0.56 on volume 15..

I know that isnt right and when i SWITCH from 20 to 200 once i get a reading on 20 it turns into 5.6 and when i switch back and forth it GOES UP And UP AND UP AND UP each time i switch.. so i have to be doing this completely wrong.

 

[lilmaniac2 5,000+ posts]

one of the wires

 

[microhaxo 10+ year member]

This isnt working at all. I have it clamped on one wire and it reads 2.0 at full volume and 0.04 at half way..

WTF i got pictures here.

I would let the wire sit in the loop but i think it picks up some amps from the other wire because it reads different.

 

[ado 10+ year member]

Don't actually clamp it on the wire. Let the jaws close.

 

[microhaxo 10+ year member]

I pulled the wires apart more and let the clamp close and im getting a much clear signal now..

Depressing news..

14.4 and if i rev the engine i get 14.5 //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

So that means im really only getting 460w ???????

It sounds way stronger than 460w...

Do you think its accurate?

Also what can i do to get closer to my 1000w i have a HIFONICS 1606d amp and i know it does WAY better than this..

32.5/14.4

also 2.23 ohm my sub shows as wired?

its wired in series at 1 ohm the sub naturally is 2 ohm.

Common guys, what can i do, what are my options?

Do i increase the gain to 64ACV to get my 1000w.. I dont want to blow my sub, am i stuck with this setting?

Since my sub is wired around ~2 ohm that means that i should increase the ACV to achieve 1000w so instead of 32^2/1 its 32^2/2 and another question now is, since its at about 2 ohm instead of the 1 i wired it for does that mean my amp will NO longer give the 1 ohm output it says it will, because 2 ohm is only about 1100w rms.

 

[ado 10+ year member]

now for the cool thing
voltage / amperage = actual impedence

32v / 16.8 amp = ~2ohms

So actual load = 1.9 Ohm

P = v^2/R

32^2/1.9 = ~540 Watts

 

[microhaxo 10+ year member]

No its actually 14.4 and i did the test again and i got 13.8 it changes slightly every time i do it.

How can i get my 1000 CLEAN watts?

so if im at 2 ohm that means i just "pretend" that im setting the sub up for 2 ohms and i tune gain to 62 ACV right?

I dont want to blow my sub so if this is wrong please tell me.

Everything i thought i knew just blew up tonight with this amperage deal.

Edit: did test again and i have 14.5 again.

this changes everything i know about car audio.

 

[ado 10+ year member]

No you can't just double it. Everything is exponential.

Try setting to 43-44 VAC.

43.58^2 = 1900/1.9 = 1000W Peak which would give you ~700 RMS

But make sure to measure your amperage and use the formulas given here to get everything as close as you can.

 

[microhaxo 10+ year member]

Its 2.2 ohm, 14.5 amps im reading at 32.5 v

Before i do this: I want to make sure i wont blow this sub..

Its a Phoenix Gold RSDC rated for 600w RMS

Everyone has told me it takes 1000w daily.. Now are they saying 1000w by just reading the ACV or 1000 true watts.. I dont want to blow this sub.