impediance please help

[antimatt3r]

i have a jbl bpx500.1 mono 1/2 channel sub amplifier...... the amp is stable to run x1 at 1ohm, x1 at 4ohm and x2 at 4ohm but dosent say anywhere if it can handle a 2ohm load..... i have a 4ohm dvc sub id like too hook up but dont want to void any warranties or anything, all the wiring options for the sub i have came across only provide a load to the amp of 2 or 8 ohms not 1 or 4.... please help!!!!

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[pr-festiva 10+ year member]

if it can run at 1 ohm it can run at 2

 

[antimatt3r]

you would think so right???? why cannot i find any technical data anywhere stating what power output its making at 2ohms???????????

 

[pr-festiva 10+ year member]

not sure but if its 1ohm stable and 4 ohm stable it would be stupid if it didnt handle 2 ohm

 

[antimatt3r]

thats what i would think as well but if i blow this brand new speaker or the amp im not gonna get my money back lol

 

[billjones42 10+ year member]

As far as I can tell, it's not stable at 2 ohm. Every site I see says N/A in the 2 ohm power category. Hmm...........

 

[pr-festiva 10+ year member]

if its stable at 1ohm mono it will be at 2ohm mono also,,,any way i found a test on it 634Watts at 2 ohm mono

 

[billjones42 10+ year member]

where'd u find that info?

 

[pr-festiva 10+ year member]

carsound.com/articles

 

[t1990le 10+ year member]

are you talking about this amp?

http://www.jbl.com/car/products/product_detail.aspx?prod=BPX500.1&CheckProduct=Y

The power series like that i think are 2 and 4 ohm stable not 1ohm i believe thats a typo. I have never known those amps to be 1ohm stable (the smalller ones any way like this one). Wire it into a 2ohm load have the gains and voltage ALL THE WAY DOWN when you cut it on and just slowly cut it up when you try and tune it. The worst thing that can happen that way is just poping a fuse 9 times out of 10. If you are throwing a lower load to an amp thats not stable at that ohm, you are causin the amp to draw more current than what its rated for so you will either blow the fuse under your hood or blow one of the fuses on the amp. Hope this helps //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[antimatt3r]

yes it is that exact amp.....

i gonna just take this ***** back to best buy and get the dual 2ohm version...... i was just "renting" it from best buy till my speaker from ebay came anyway........

Power Output 237 watts RMS x 2 channels at 4 ohms

and ≤1% THD + N

718 watts RMS x 1 channel at 4 ohms,

14.4V supply and ≤1% THD + N

674 watts RMS x 1 channel at 1 ohm,

14.4V supply and ≤1% THD + N

 

[MakeshiftAudio 10+ year member]

are you talking about this amp?
http://www.jbl.com/car/products/product_detail.aspx?prod=BPX500.1&CheckProduct=Y

The power series like that i think are 2 and 4 ohm stable not 1ohm i believe thats a typo. I have never known those amps to be 1ohm stable (the smalller ones any way like this one). Wire it into a 2ohm load have the gains and voltage ALL THE WAY DOWN when you cut it on and just slowly cut it up when you try and tune it. The worst thing that can happen that way is just poping a fuse 9 times out of 10. If you are throwing a lower load to an amp thats not stable at that ohm, you are causin the amp to draw more current than what its rated for so you will either blow the fuse under your hood or blow one of the fuses on the amp. Hope this helps //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Or blow the crud out of your fets for RI^2 losses it wasn't designed to handle. Stop giving out advice on what you don't entirely know about.

 

[antimatt3r]

http://www.carsound.com/articles/publish/printer_13.shtml

that article states it was tested and can do 2ohm hmmmmm

 

[t1990le 10+ year member]

Or blow the crud out of your fets for RI^2 losses it wasn't designed to handle. Stop giving out advice on what you don't entirely know about.

that amp is 2 ohm stable i think its just a typo i have seen i coulple of those amps around here and none of the guys have them at 1ohm.

 

[t1990le 10+ year member]

http://www.carsound.com/articles/publish/printer_13.shtml
that article states it was tested and can do 2ohm hmmmmm

At a MSRP of $699 WTF i paid half of that for my 1750 lol