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autoformer question

About the only useful thing to get from the graph is that the 2-ohm taps are unlikely to be the right ones, because the speaker never goes below 4 ohms. As for the power, the whole point to autoformers is to yield the same power at different impedances. The 252 has 250w at 4 ohms, and at 8, so there will be no "loss" as such.

Personally, I'd enjoy trying the different taps, just to hear what happens!

entdoc said:
I never knew that distortion of base was a good thing?
Click to expand...
It's not. The author is just pointing out that many people can't tell real bass from its harmonics, so they perceive the doubling effects as good, because they sound like "more" bass. Once your ears are trained, the distortion is noticeably a bad thing.
 
Sorry to beat this topic in the ground but something amazing happened today. I could not believe the difference by changing the tap from 8 to 4 ohms. I have much better sound. The base and midrange are fuller , the high freq. are still bright and airy. I don't feel like I need a sub. now. I can now see the logic of biwiring .
 
entdoc said:
Sorry to beat this topic in the ground but something amazing happened today. I could not believe the difference by changing the tap from 8 to 4 ohms. I have much better sound. The base and midrange are fuller , the high freq. are still bright and airy. I don't feel like I need a sub. now. I can now see the logic of biwiring .
Click to expand...

+1 :thmbsp:
 
entdoc said:
Sorry to beat this topic in the ground but something amazing happened today. I could not believe the difference by changing the tap from 8 to 4 ohms. I have much better sound. The base and midrange are fuller , the high freq. are still bright and airy. I don't feel like I need a sub. now. I can now see the logic of biwiring .
Click to expand...

By looking at the spec's of the speakers, you have made the right choice on the 4 ohm taps.

I have found just recently that changing to the 2 ohm taps have had a similar positive impact with both the 2102's and 501's. Stereophile have most of the upper bass and midrange at below 3ohms, which correlates to the better sound I am getting in my system.

One great thing about Mac amps is that you can change the taps.
 
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