amplifier power at .5 ohms?

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paulcummings32

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Joined: March 05, 2010

Location: Illinois, United States

Posted: September 07, 2010 at 10:48 AM / IP Logged

can anyone tell me the formula to figure out how much power my amp is producing at .5 ohms? i have a memphis pr1X1000 (320W@4ohms x1, 580W@2ohms x1, and 1000W@1ohm x1)

Boosh

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haemphyst

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Posted: September 07, 2010 at 11:21 AM / IP Logged

Well, it's eventually going to produce only smoke.

It's not rated for that load, and you are literally (LI-TER-AL-LY) playing with fire. That's the truth.

However, looking at the not quite doubling of power per impedance halving, I'd going to guess somewhere in the 1.5kW range. Since it's not specified, the ONLY way is to open the amp and measure the PS rails while it's running WFO. Then use Ohm's law to figure it.

It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

paulcummings32

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Joined: March 05, 2010

Location: Illinois, United States

Posted: September 07, 2010 at 11:54 AM / IP Logged

i guess i was under the assumption that anything that was 1 ohm stable was also stable below 1 ohm. so theres no truth to that?

Boosh

i am an idiot

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Posted: September 07, 2010 at 3:13 PM / IP Logged

Not so much.

paulcummings32

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Joined: March 05, 2010

Location: Illinois, United States

Posted: September 08, 2010 at 9:27 AM / IP Logged

okay, well damnit! thanks for the help everyone!!! you just saved me from blowing my new amp. everything has been very helpful!!!

Boosh

zerepdivad

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Posted: September 08, 2010 at 10:52 PM / IP Logged

paulcummings32 wrote:

i guess i was under the assumption that anything that was 1 ohm stable was also stable below 1 ohm. so theres no truth to that?

please backhand whoever told you that.....

A DMM is a beautiful thing.

MECP Advanced Installer Certified.

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amplifier power at .5 ohms?

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