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Author Topic: Power Problems  (Read 1965 times)

Miguel Castro Rios

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Power Problems
« on: January 07, 2008, 05:14:03 pm »

I'm having a lot of problems with the power here in Mexico.

Some venues have more then enough as well as some fancy hotels, and some times we use a generator.
Having that said, when I use my Big PA works fine because the custumer is willing to pay for it...

The problem comes when I do small shows for the locals and there is not enough cash to rent a generator, And/or the venue just doesn't have enough Power. Some times the voltage drops all the way to 90 instead of 125.

So to be able to cover this shows... I'm gonna use a small PA system. 2 SRX jbls powered by QSC PLX 3402...
Now for the Subs... All I need is a power amp

here are my choices
Crown macro tech 2400 (doesn't power up if it doesn't have enough voltage)
Or the QSC PLX 2400 wich it does power up even with low voltage, I don't know how low tho...

But the Crown Macro tech NEEDS 125 volts...

What are your suggestions on this. All I need is for them to power up I won't push them too hard (the customer is not willing to pay much this is just to pull out the show)..

Thanks
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Dick Rees

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Re: Power Problems
« Reply #1 on: January 07, 2008, 05:39:32 pm »

http://www.furmansound.com/product.php?div=01&id=AR-PRO

Has saved my rear on a lot of "small" jobs.
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Scott Smith

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Re: Power Problems
« Reply #2 on: January 07, 2008, 06:30:05 pm »

miguel castro wrote on Mon, 07 January 2008 17:14

I'm having a lot of problems with the power here in Mexico.
...here are my choices
Crown macro tech 2400 (doesn't power up if it doesn't have enough voltage)
Or the QSC PLX 2400 wich it does power up even with low voltage, ...
But the Crown Macro tech NEEDS 125 volts...

What are your suggestions on this...

Seems like you sort of answered your own question.  

I often work venues with voltage problems.  My PLX amps shut down all the time.  For me, the solution was PL6.0's running half load stereo.  These amps are more forgiving when voltage sags well below acceptable limits.

I am not a fan of PLX amps in this environment, but I can't speak specifically about the 2400.  RMX amps may be better suited to an unusually low voltage environment, like the discontinued PL6's.
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Tim Padrick

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Re: Power Problems
« Reply #3 on: January 13, 2008, 08:08:33 pm »

I've tested a K1 down to 90V, so I'm guessing a K2 would work also.  I don't know about the CE4000, but they are about as efficient an amp as one can get.

Jeff Robinson

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Re: Power Problems
« Reply #4 on: January 13, 2008, 09:14:56 pm »

I unfortunately didn't have a meter with me to check the voltage but at my brother's wedding I had to reconfigure my CE4000 out of the system due to it shutting down with low voltage (my XLS402s kept running despite the low voltage). I know it was low voltage because the lights in the park shelter dimmed/pulsed in time with the beat until the CE4K shut down.

Jeff Robinson
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