MAC Autoformers?


Someone is selling a MAC MA6500 Integrated claiming its superiority over the Ma6600 due to the fact that "it does not have the degrading autoformer design found in the MA6600". That is the first time I've heard a claim that the autoformer was a hindrance to better performance; I thought quite the opposite. What do you MAC Maves think?
pubul57
If I did that, the test would be compromised by the fact that the amp used in the test was not designed to be used with autoformers.
Wrong, your grasping for straws!

The autoformer is just as suited to a good amp compared to one that is compromised.

And if your happy with it that’s fine.

BTW shoulda kept the  Pass Labs X250.5

Cheers George
@georgelowfi - sorry, couldn't resist the jab since you ended your last post with one to roxy54.

It seems you are consistently more interested in the technical data on hifi equipment that I'll bet determines what system or systems you own and like.  

Do you ever throw care to the wind and just trust your ears? 

 






Thanks Pops. Good to know that there are others who have the confidence to judge with their ears.

http://roger-russell.com/mcintosh1.htm#autoformer

What is failed to be mentioned is that with most loudspeakers as  impedance decreases / sensitivity decreases and as impedance increases / sensitivity increases. So if the speakers presents an impedance that swings between the impedances of the taps there will be potential for corruption to the ouput linerity.