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Home Theater Forum > Home Theater Hardware > Receivers/Separates/Amps
[ How to get the full power out of an Earthquake Amp ]

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Old 10-19-2006, 04:07 PM   #1 of 5
buzzers70
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How to get the full power out of an Earthquake Amp


Hi, I bought an Earthquake Cinenova Grande 5 that gives 600 Watts per channel (5) in 4 ohms. How is it possible to get 600 watts in 5 channel (total of 3000 watts) if the amp is plugged on a single 15A or 20A breaker? If not, what kind of setting would work to get the full power?
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Old 10-20-2006, 06:15 PM   #2 of 5
Brent_S
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Re: How to get the full power out of an Earthquake Amp


Depends on how they rated it. Do they actually say it'll produce 600 watts into all 5 channels simultaneously? If they do, then you are correct, you'll never get there with a 15 or 20 amp circuit. You'll need a bigger circuit breaker, heavier gauge wiring, dedicated outlet...etc.

Realistically, why would you want to drive all channels to max anyway? Even two channels driving super inefficient speakers should reach hearing damage thresholds in a residential environment with that kind of power.

-Brent
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Old 10-21-2006, 07:34 AM   #3 of 5
buzzers70
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Re: How to get the full power out of an Earthquake Amp


Thank you.

Yan.
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Old 10-21-2006, 10:18 AM   #4 of 5
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Re: How to get the full power out of an Earthquake Amp


How is it possible to get 600 watts in 5 channel (total of 3000 watts) if the amp is plugged on a single 15A or 20A breaker?
The published rating for multichannel amps doesn't necessarily mean they can produce that power simulaneously and continuously for all channels. There's a bit of a fudge factor that has to do with how amps are measured and how the specifications can be published. However, it is possible for an amp to produce more power than an outlet could theoretically provide if one considers your amp has capacitors from which it can draw the current necessary for short periods of times like low frequency transients.

Despite all the power your amps are capable of producting, and that really depends on how hard you drive them (like to guaranteed deafness and destroying your speakers), most of the time you'll only be using a small fraction of the available power. However, the benefits of an amp such as you have is that when the program material demands it, your amp will likely have no difficulty whatsoever in producing the additional power needed for demanding material. IOW, it probably won't clip. It's like having a high horsepower and torquey car. When you need to pass, you pass and don't worry about the car running out of the audio equivalent of headroom.
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Old 10-29-2006, 08:33 PM   #5 of 5
Glen B
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Re: How to get the full power out of an Earthquake Amp


Quote:
Originally Posted by buzzers70
Hi, I bought an Earthquake Cinenova Grande 5 that gives 600 Watts per channel (5) in 4 ohms. How is it possible to get 600 watts in 5 channel (total of 3000 watts) if the amp is plugged on a single 15A or 20A breaker? If not, what kind of setting would work to get the full power?

In addition to what was said in the other replies, keep in mind that because there is only occasional audio material in the rear channels, you never have all 5 delivering identical power at the same time.

Glen
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