Axiom Home Page Forums General Discussion Advice from Axiom Owners More power to M100,s or EP800?

Spiroh.. the example graph referenced might as well be written on Toilet Paper as the content is pretty much suspect

As your graph shows they just took a single speaker to measure, that is fine. What the graph fails to mention is what tone frequency it was testing at? They do give all channels driven at 8-ohm, but not at 4. The unit published can get 130w @ 8ohm. The ADA1000 only does 125 at 8ohm, but actually can double down when you drive a 4ohm speaker. The numbers for the Denon doesn't show that.

So does that mean that the unit will run out of power from the power supply if running all speakers at 4ohm as with that resistance, you'd need double the current to drive the speakers. What might work at 8ohm does not mean it will work at 4.

They talk about a % of distortion, but without knowing what frequencies were tested and how the frequencies were played.. (ie a linear sweep from 10hz to 2000hz or was it a ping-pong sweep or a fixed sample?) And this is only with 2 speakers driven so you are using far less of the power supply reserves than trying to do the same test in a HT setup with all the speakers driven where you are more likely to get clipping.

Not saying the receiver is not a good unit. for the vast majority of people it will be excellent. But here, the OP is driving a far more power hungry speakers than most that would not be a problem just as long as you don't turn up the volume too loud.

The EP800 can produce very deep base and has it's own amp so yes you can help out a bit from taking that demand off the receiver. If you want to cut the bass management to say 120hz then you'd save quite a bit of power. then what is the point of getting M100s? you might a well just have purchased a pair of bookshelf M22 or the new M5HP as you've just cut the speaker off at the knees. You buy a full frequency speaker generally to get full frequency. The cost of doing so however is it need enough clean power to get there.

I was just pointing out with a lower cost external amp is you don't need knee jerk reaction. Your receiver might show really big numbers but it doesn't mean you-re getting those number in real life. So if your speakers are clipping, moving to a properly designed external amp, you may not need really huge numbers. If an external amp can deliver a true 250w @ 4 ohms, that might be more than enough if your receiver is only really giving you a true 60-80w @ 4ohms when taxes all channels driven. Why pay for 600w if your never going to use it.