Strapping current

[Jduane]

Just curious

How does strapping amps affect current from batteries?

Ex. 1 amp wired at 1 ohm pulls 200A from batt. How much would be pulled if 2 amp were strapped? At 1 ohm and 2 ohm?

I have 3 amps with mininal voltage drop,for an experiment I strapped 2 of them I get severe voltage drop instantly at half volume.

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[massivespl]

Depends

1 amp at 1ohm and 2 amps strapped at 2ohm is like the same thing.. Strapping at 1ohm though u be banging hard

 

[bubbagumper6 5,000+ posts]

You sure you strapped them correctly?

 

[Jduane]

You sure you strapped them correctly?

Lol

I didn't want to remove the sub so I wired .5 ohms each when strapped

If 1 amp at 2 ohms pulls 200a, would it be 400a strapped at 2ohms? Does anything else play a factor regarding current. EX. The amount of voltage?

 

[93_Az_TransAm 10+ year member]

Im guessing here but your running 2/0 so i would think your running a 300amp fuse? Give or take 50 amps but whatever your fuse is rated at its not pulling more that that or your fuse would blow

 

[93_Az_TransAm 10+ year member]

Also id love to see a vid or your set up playing thats gotta slam with 3 of those strapped at .5 ohm

 

[Jduane]

I was just playing around with strapping. Wanted to see how much more I could get out of the subs with more power. My elec won't cut it.

Now I only get 40-46 volts AC out of each amp before clipping, don't know the amperage.

What's the formula to get current when strapped, any variables?

 

[93_Az_TransAm 10+ year member]

Setting gain on strapped amps? - Amplifiers - SMD Forum

This might help

 

[adulbrich 5,000+ posts]

The lower the impedance your amps se, the less efficient they are. They will pull more current. Two amps strapped to one ohm will pull more than twice the current of one amp wired to one ohm, because each amp sees .5 before rise. They will be less efficient, but make a lot more power.

The higher voltage your electrical system can maintain, the more efficient your amps will run. They will actually pull less current.

An amp on 14.4v will pull less current to make the same power than the same amp on 12v. Some Rockford amps are weird/complicated because they have a different type of power supply, but I wouldn't worry about those.

 

[93_Az_TransAm 10+ year member]

http://www.caraudio.com/forums/amplifiers/309733-how-gain-match-strapped-amps-meter.html

Theres also this, as well as a search button in the top right corner of the forum lol

 

[Jduane]

http://www.caraudio.com/forums/amplifiers/309733-how-gain-match-strapped-amps-meter.html
Theres also this, as well as a search button in the top right corner of the forum lol

Interesting, so in that post I'm assuming he's using 2 (unstrappable) amps. Does this apply to all matched amps that don't have a link for strapping? Just wire a push, pull config.

 

[93_Az_TransAm 10+ year member]

No idea i didnt read into it you can google "how to set amp gains with dmm on three strapped amps"