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  #2626  
Old 11-07-2013, 05:37 AM
727Designs 727Designs is offline
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Default Re: Show Your System

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Originally Posted by vulcan2000 View Post
Lol you got me, ima sucker for some math lol and I agree with you in the ad-1, all loads are reactive in audio not resistive which is why I think his new meter is nice because its like a dyno but it uses the subs as the load and imo is a much more realistic test.

But the issue with clamping is that the meters (voltage, ammeter) record the max value but they don't necessarily occur at the same time so you can't just do (volts x amps = watts) there is a power factor you have to find and add in to the equation to get watts. With Ac power if you just multiply volts and amps you end up with Va not watts (I think, don't quote me I've been drinking atm lol)

I'm not trying to belittle you or anything just wanna make sure the proper equations are used to get an accurate measurement. While I'm not at the same level as you, I'm a fellow basshead in for the fun of the addiction lol
I'll prolly see this in the morning and think wtf was I thinking lol thank god for auto correct

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Honestly, exact pinpoint accuracy isn't a remote concern for me. I could care less how much power I make I'm just concerned with the score, however this is a good method to use to see if the changes I have made did increase power, which in turn increases in my goal.
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  #2627  
Old 11-07-2013, 05:43 AM
ranger024x4 ranger024x4 is offline
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Default Re: Show Your System

i get my sa-8 today. pretty excited
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  #2628  
Old 11-07-2013, 05:55 AM
Markous Markous is offline
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Default Re: Show Your System

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Originally Posted by ranger024x4 View Post
i get my sa-8 today. pretty excited
You won't be disappointed
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  #2629  
Old 11-07-2013, 05:55 AM
ranger024x4 ranger024x4 is offline
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Default Re: Show Your System

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Originally Posted by Markous View Post
You won't be disappointed
what are the specs of the box you are using?
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  #2630  
Old 11-07-2013, 06:28 AM
Markous Markous is offline
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Default Re: Show Your System

I bought a prefabed box from mobile sound works.

Had to take about an 1/8" more out from the cutout to get it to fit.
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  #2631  
Old 11-07-2013, 10:28 AM
Whiston Whiston is offline
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Default Re: Show Your System

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Originally Posted by 727Designs View Post
Honestly, exact pinpoint accuracy isn't a remote concern for me. I could care less how much power I make I'm just concerned with the score, however this is a good method to use to see if the changes I have made did increase power, which in turn increases in my goal.
What changes did you make? I see that DCV value needs to increase dramatically!

I agree that calculating apparent power instead of real power for the strict purpose of seeing a change is adequate in most situations. That being said I only ever clamped an ammeter and can't recall any significant voltage measurements on my outputs. I did religiously meter my supply voltage though.

In all honesty, if your amp is making 400 watts, your box rise is in double digits, and your supply is dwindling into the singles, it doesn't matter so long as that number on the screen keeps going up.
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  #2632  
Old 11-07-2013, 11:12 AM
727Designs 727Designs is offline
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Default Re: Show Your System

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Originally Posted by Whiston View Post
What changes did you make? I see that DCV value needs to increase dramatically!

I agree that calculating apparent power instead of real power for the strict purpose of seeing a change is adequate in most situations. That being said I only ever clamped an ammeter and can't recall any significant voltage measurements on my outputs. I did religiously meter my supply voltage though.

In all honesty, if your amp is making 400 watts, your box rise is in double digits, and your supply is dwindling into the singles, it doesn't matter so long as that number on the screen keeps going up.
Considering I'm running a single alt with potential current draw of over 2000 amps I'm not terribly concerned with my 12.88v drop on a burp at this point. I had an issue with my input signal I was able to fix and rescope for this particular change. At this point I'm concerned with cutting my 1.58 reactive down. Slightly over 400 watts in this case though lol.
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  #2633  
Old 11-07-2013, 11:14 AM
ranger024x4 ranger024x4 is offline
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Default Re: Show Your System

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Originally Posted by Markous View Post
I bought a prefabed box from mobile sound works.

Had to take about an 1/8" more out from the cutout to get it to fit.
I have the same box im guessing. I am gonna have to do the same thing lol
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  #2634  
Old 11-07-2013, 12:01 PM
Whiston Whiston is offline
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Default Re: Show Your System

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Originally Posted by 727Designs View Post
Considering I'm running a single alt with potential current draw of over 2000 amps I'm not terribly concerned with my 12.88v drop on a burp at this point.
Oh yeah?
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  #2635  
Old 11-07-2013, 12:28 PM
ranger024x4 ranger024x4 is offline
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Default Re: Show Your System

wow, the difference between the vfl8 and the sa-8 are ridiculous. sa8 ftw
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  #2636  
Old 11-07-2013, 02:03 PM
727Designs 727Designs is offline
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Default Re: Show Your System

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Originally Posted by Whiston View Post
Oh yeah?
2 DC 9.0k at 0.4 nom, Rusty said bank on 1000A of current draw per.

Considering I have a single 350A alt I'm relatively happy with only dropping 2v from my warm charging point. That's with 8 runs from front to back, few extra frame grounds on rear, the single g34R Red Top under the hood with 10 Odyssey PC1700's in the back with custom buss bars. My class (not to mention my engine bay ) Limits me to 2 alts, I have the bracket but also have 2 custom alts in the works so waiting on them to put it on. At that point I'll be adding my other 6 PC1700's, and 2 more 9.0k's. It's hard to hold almost 13v with this much power on tap, I'm relatively pleased.
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  #2637  
Old 11-07-2013, 02:46 PM
Whiston Whiston is offline
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Default Re: Show Your System

I totally read that wrong.
I thought you had said a single alt with 2000A output. Ha ha ha.

For 2 9k's on 10 G31's , I'd say that 12.8 drop is pretty decent!
Can't wait to see the dual alt setup.
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  #2638  
Old 11-07-2013, 02:49 PM
727Designs 727Designs is offline
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Default Re: Show Your System

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Originally Posted by Whiston View Post
I totally read that wrong.
I thought you had said a single alt with 2000A output. Ha ha ha.

For 2 9k's on 10 G31's , I'd say that 12.8 drop is pretty decent!
Can't wait to see the dual alt setup.
LOL Not sure my tired old 5.4 could turn a 2000A alt, but we will see how it does with 800A worth of Mike Singer power before long

I'll be putting up some pictures when I get it all on, just milking what I can out of the two before I add the rest of the electrical and amps.
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  #2639  
Old 11-07-2013, 10:15 PM
DustyXB DustyXB is offline
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Quote:
Originally Posted by ranger024x4 View Post
wow, the difference between the vfl8 and the sa-8 are ridiculous. sa8 ftw
I want one..... pics?

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  #2640  
Old 11-08-2013, 03:49 AM
ranger024x4 ranger024x4 is offline
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Default Re: Show Your System

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Originally Posted by DustyXB View Post
I want one..... pics?

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here is the old vfl

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