The official "Theta" thread - Page 277 - AVS | Home Theater Discussions And Reviews
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post #8281 of 8283 Old Yesterday, 11:18 PM
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Originally Posted by rhale64L7 View Post
?..All I do really care about is the resulting sound.
Same here.

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post #8282 of 8283 Unread Today, 10:32 AM
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Originally Posted by rhale64L7 View Post
...... All I do really care about is the resulting sound. My Krell Chorus amp was the only amp I had that was truly balanced from input to output. So I have no predestination for such a design. ......
Great way of looking at it. Like anything else in technology, you can have a very good unbalanced design and a crappy balanced design. The mere fact of a balanced amplifier technology does not automatically equate to a superior design.

My personal preference is an unbalanced design. Less complexity for the same achievable performance.

*Note that this has nothing to do with a balanced input stage (XLR connection). That is a different issue.

Also consider that any bridged amp is a balanced amp. So most "thumpers" (car stereos) are balanced amps!

The old "Ampzilla" circa 1974 was a balanced design, and a rather good one for those days.

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post #8283 of 8283 Unread Today, 10:44 AM
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Balanced class D?

I doubt there are any balanced class D amps out there.

Yes it could be done, two PWM chains each acting on positive and negative portions of the input signal. But the resulting timing problems would be a challenge to resolve. Remember that a class D amp core operates in the hundreds of khz. And I can see no performance gain for all that extra cost and work.

Now if you operated two class D amps in a bridge mode, that would technically be a balanced amp. But as class D amps are capable of very high power at excellent efficiency, why would you need a bridged configuration in the first place?

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