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PPI ProMOS 425 1/2 ohm stable?

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Topic review
   

Expand view Topic review: PPI ProMOS 425 1/2 ohm stable?

by Fishy » Tue Jul 29, 2008 11:58 pm

How about we just add a zero and be done with it, hehe.

by Tim » Tue Jul 29, 2008 11:14 am

either way I like both formulae :fing02: I can figure either way now,
thanks guys :happy013:

Tim

by Ryan from Ohio » Tue Jul 29, 2008 8:30 am

ya thats the simple formula. only works when amps are established.

by Bwcad1 » Tue Jul 29, 2008 7:13 am

Ryan from Ohio wrote:Well look at the math Bill.

We already know the rated watts and can guess at the voltage ;)

Lets just work with the numbers given on that page...

13.8 Volts X 25 Amps= 345 WRMS X .6 (efficency)= 207 WRMS total power output.

Thats why I say that fuse cant be correct... This baby is to do 800 WRMS
no dude i wasnt actually doing the amp i was laying out my formula instead of doing 1.4 which imo is more difficult than just using .6.

by OnYrMrk » Tue Jul 29, 2008 6:45 am

Fishy wrote:Good Advice Neumman.
Yeah I'm back. One of my customers from work stumbled upon one of my eCoustics threads. He said to himself hmmmm....... Fishy, that sounds like Dwight. I guess he was impressed because now he wants me to design couple systems for his vehicles as well as a home theater.
He is part of a group of regulars that fish with me every Wednesday night. They're from "The Islands", i.e. Trinidad, Jamaica, etc. and all pretty much own theiy're own businesses and would like to see me start my own.
Looks like I've got the investors I've always wanted.
I've got some ideas. How does "SQ Technologies" or "SQ Consulting" sound?
I established a corporation a couple years ago when I bought a commercial fishing boat, have found a 1000 ft^2 brick and mortar with an air conditioned office for $800 a month, and have the backing from people that care.
Your are absolutely correct "You only live once".
Expect me around here with a whole crap load of questions.
- Dwight
How does SoundQAdvise sound to you? Also, you need a consultant in Oklahoma? LOL...I think this is a good idea for you. BTW, anyone on here can vouch for my kwowledge as well as experience in SQ.

No really, I don't need a job...or....do I?

Good luck in your future. I think you have a good starting point right now.

by Ryan from Ohio » Tue Jul 29, 2008 3:08 am

Well look at the math Bill.

We already know the rated watts and can guess at the voltage ;)

Lets just work with the numbers given on that page...

13.8 Volts X 25 Amps= 345 WRMS X .6 (efficency)= 207 WRMS total power output.

Thats why I say that fuse cant be correct... This baby is to do 800 WRMS

by Bwcad1 » Mon Jul 28, 2008 6:07 pm

thats way more complicated then it needs to be lol man.

14.4v X 50Amps = 720

720 X .8 (80 Percent Efficiency) = 576watts

by Tim » Mon Jul 28, 2008 5:34 pm

ohh ok thanks ryan, it all makes sense now. Thanks alot for the help.

Tim

by Ryan from Ohio » Mon Jul 28, 2008 5:29 pm

Tim wrote:I still don't know where the 1.4 came from :sad017:
Tim
100-60= 40% in decimal its .4 So you take the amps X 1.4 (140%) calculating for inefficiency.

by cargodz » Mon Jul 28, 2008 4:27 pm

^Funny cause the older I get the more I get into SPL... But I guess you guys haven't reached the hearing loss stage yet :p LOL

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