McIntosh MA5200

A very serious bit of kit. About $5000 with as many as 9 inputs and rated at 100WPC into 8 Ohms, evidently measures higher at around 130 into 8 Ohm and A German Hi Fi Mag. Stereoplay found 206WPC into 4 Ohm. McIntosh does not provide a 4Ohm measure.

A German Hi Fi Mag. Stereoplay found 206WPC into 4 Ohm. McIntosh does not provide a 4Ohm measure.

And that is one the reasons why I did not buy this amp and went with my Marantz reference unit instead. Anyone know the reason why McIntosh does not give this model a 4 Ohm rating? Especially if it supposedly tested as such?

"Anyone know the reason why McIntosh does not give this model a 4 Ohm rating? Especially if it supposedly tested as such?"

My best guess would be that McIntosh is known to be one of those brands you turn to if you need something very powerful, kind of like a Bryston or Krell. 100 McIntosh watts should be comparable to just about any other brand. But that's just a guess on my part. I agree with you in that they should have listed a 4 ohm rating. It can't hurt them.

McIntosh uses auto transformers which makes the power output the same into 4,8 & 16 ohm speakers.

"06-05-15: Stereo5
McIntosh uses auto transformers which makes the power output the same into 4,8 & 16 ohm speakers."

That's true on most of their amps, but the MA5200 doesn't have them.

That may be the answer to your question Paraneer. Maybe they don't post anything other than 8 ohm's so the amp doesn't stand out as being different. I bet a lot of people assume like Stereo5, that their amps all have autoformers.