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I recently started to set up my new DenonAVR5800 and found that the 7 speaker output terminals are for 6-16 ohm speakers and I have 7 four ohm speakers to attach to it. I don't want to burn it up (safety shut off might protect it but then I can't hear when it is shut down). The speakers can be driven @200 Watts without any problem so I thought the Denon which provides 170 Watts was fine until I came across the data from an ohm meter.
There was no warning about this in all the Denon paperwork (which is a marvel of Japanese European English).
Do any of you actually know of any 7 channel amplifier that really can safely deliver 200 Watts into 4 Ohms (and for saftey's sake into 2 Ohms)?
drdoolittle
Follow Ups:
It is improbable you would ever have all 7 channels going at full tilt and unlikely you could stay in the room and retain your hearing if they were. Most times they will motor along at less that 10 watts and only be occasionally called upon to deliver sustantial power in some channels.Regardless, the fuse will go in the line of your amp before doing any drastic harm to it. This is what goes "phut" if you are careless enough to short out speaker leads while the amp is still switched on.
More harm is done by connecting underpowered amps to speakers as the resultant distortion can fry tweeters in fine style.
BTW ignore readings from your ohm meter - it will not give you any sensible info about your speakers. The impedence of these varies dramatically according to frequency so you will not have much idea of what is really going on re interaction between amp & speakers except using that instrument called the ear.
Bottom line, relax and enjoy.
John
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