The PMX-2000 is 500 Watts bridged and 180 Watts X (2) (Left/Right) @ 8 Ohms or 360 Watts total in Stereo Mode. See the manual for yourself http://www.behringer.com/PMH2000/index.cfm?lang=ENG

Whether you believe it or not the PMX is TRUE Stereo...All you have to do is Listen to the results out the speakers and you will agree. All my patches and my MP3 player are in True stereo.

When I play with my band 7 piece band, I never move the volume knob past 5. There is a lot of headroom with this AMP for a Keyboard Player.

I'm constantly amazed at someof the posts pertaining to wattage and impedience applications I read on this and other forums. Unfortunately, some posts are based on information put forth by manufacturers, much of which is hype for their product.

More often than not, the rating of their sound systems is based on peak power using low impedience speakers. Peak power is almost a meainingless term, almost like an engine rated at 1,000 HP. That 1,000 HP may not be developed until the engine reaches maximum RPM.

One thing that may help in this endeavor to garner information pertaining to sound systems is to apply Ohm's Law, which is the basis for determining all things electrical. You'll find a good example of this at http://www.angelfire.com/pa/baconbacon/page2.html The main thing that should be considered with all sound sytems, IMO, is RMS power, freqency response, frequency range, and last, physical speaker size.

Have Fun,

Gary

Question,

I thought that the amp needed to be less than the speakers in order to make sure you don't damage the speaker. Like if you have 175 speakers, shouldn't that be the maximum wattage output the amp should be able to produce and not go over that?

JBLs 175 watts
PMX2000 180 watts
PMH880S 200 watts


Thanks
Bob
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It's the combination of amps and volts that create wattage. The basic formula is I=E/R which is from the old school of learning. I is the current in amperes, E is the voltage and R is the resitance.

The forumla for determining power in watts usind direct currnt is P=EI=RI 2.

Gary

My formula is...if you smell or see smoke, the amp and speakers are not compatible..

Hey Bob

I reckon so, but the JBL's at 175 watts that I now own are powered speakers. I just used that as a comparison. Wondering if it was really worth me getting something that is only a few more watts, if those figures are in fact arrived at the same way.

Scott

Originally posted by Scott Langholff:


Scott, the info on speakers is very much like the political scene -- who's telling the truth? I have a Ampeg bass amp rated at 25 Watts witch sounds clearer and louder than a fender rated at 125 Watts.
Bottom line is to listen and decide -- use the info only as a gentle guide.

The JBL 10"s -- powered, sound great, a good full warm sound. I am inclined to agree with Dave --- Sub-woofer and you have it all. If you are talking about very large crowds (400 and up), then you need bigger speakers and lot more wattage.

Don't sell um, John C.

I believe that the self-powered speakers are louder and more efficient "per watt" than unpowered, proably because each speaker has a dedicated amp that is expressly designed for maximum efficiency.
DonM