ohm trouble

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lesterjustin29

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Joined: April 27, 2010

Location: Virginia, United States

Posted: April 27, 2010 at 9:05 PM / IP Logged

I have a 2 channel 525 watt amplifier that is 2ohm stable.. i have 3 subs wired to 12 ohms is it ok to bridge the amp with this setup? and if not what is the probability of burning my amp up with having them wired to 1.34ohms on one channel?

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stevdart

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Posted: April 27, 2010 at 9:19 PM / IP Logged

Last, first: you will destroy your amplifier by putting an impedance on it that is too low for specs. That is not a one ohm stable amp. So, you have to decide if you want to go forward with this awkward combination.

You can bridge 12 ohms to the amp, that's okay. The amp will perform as if it has 6 ohms attached to each channel. If specs for the amp are accurate and true, that will give you 116 watts for each sub. The amp, as you know, has the ability to provide three times that.

Rethink this path, using this combination of gear. A professional wouldn't put such a plan in place for you.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

stevdart

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Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: April 27, 2010 at 9:35 PM / IP Logged

Re your PM , use the matching subs and leave the oddball out of the picture. Put a 4 ohm speaker onto each channel or bridge the 8 ohm load. The output is 260-something per channel (if I'm reading your post right, output at 4 ohms/channel), giving you a little more than using the three odd-matched speakers. And, anyway, its a lousy idea to mix different sized subs. Usually its just because you have them, which is not the way to go about putting together a system.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

lesterjustin29

Member - Posts: 13

Joined: April 27, 2010

Location: Virginia, United States

Posted: April 27, 2010 at 9:51 PM / IP Logged

would it not be a good idea to bridge the two 10's at 2ohms?

i am an idiot

Platinum - Posts: 13,667

Joined: September 21, 2006

Location: Louisiana, United States

Posted: April 27, 2010 at 9:54 PM / IP Logged

No it would not, your amp is 2 ohm per channel stable. It is not 2 Ohm mono stable.

KarTuneMan

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Joined: December 14, 2004

Location: Isle Of Man

Posted: April 27, 2010 at 10:05 PM / IP Logged

Those darn ohms....

ianarian

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Joined: April 24, 2009

Location: California, United States

Posted: April 28, 2010 at 12:16 AM / IP Logged

Poor ol Mr. Ohm, he is probably rollin over in his grave at the sight of what we are doing with his discovery...

This is what I do for FUN!

lesterjustin29

Member - Posts: 13

Joined: April 27, 2010

Location: Virginia, United States

Posted: April 28, 2010 at 9:51 PM / IP Logged

shew when i first got into subs and amps which has been a few years ago i didnt know it was so sensitive and technical.... but you aint listenin to music if ya cant feel it

lesterjustin29

Member - Posts: 13

Joined: April 27, 2010

Location: Virginia, United States

Posted: April 28, 2010 at 9:52 PM / IP Logged

thanks for all the help u guys.. i was rackin my brain tryin to figure this stuff out

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ohm trouble

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