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Chip Amps Amplifiers based on integrated circuits

Line input transformer for unbalanced to balanced conversion
Line input transformer for unbalanced to balanced conversion
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Old 14th July 2018, 10:37 AM   #31
Burnedfingers is offline Burnedfingers  United States
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Join Date: Nov 2002
So BTL is bridged operation from what I see on the diagram. Where does it show that is is balanced in? I see signal and ground for input on both channels but I don't see the +,-, and ground in for a true balanced input.

The diagram shows unbalanced input. The Ch1 gets an inverted signal and Ch2 gets a non inverted signal.
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Old 14th July 2018, 04:19 PM   #32
recepky is offline recepky  Turkey
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Join Date: Apr 2013
Location: Istanbul
Quote:
Originally Posted by PRR View Post
It is clear the input of the IcePower is well above 10K, so that will work.



It is not clear that a tube like amp will be happy driving a 600 Ohm winding (even un-loaded). Where 600r is required we usually use beefy tubes, 6V6 not twin triodes.



It would "work", but may be compromised in the bass.



However it is your project, do what you want.


Hi PPR
thanks for the clear explanation. I just wanted to know the correct impedance. I should change my transformers.

Because I already have an 600:10k transformer. I gave it a try. I removed the burrbrown balancer circuit and put the transformer. Now Bass is very heavy a little bit boomy. Trebles feels like in the background. Mids are beautiful but too much. Generally sound is very thick feels like frequency drops after 8-10khz.

What do you think about this?
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Old 14th July 2018, 04:32 PM   #33
raul_77 is offline raul_77  Europe
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Location: Spain
You can do what you want:

Project 176
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Old 14th July 2018, 04:41 PM   #34
recepky is offline recepky  Turkey
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Join Date: Apr 2013
Location: Istanbul
Hi raul
I already have this kind of solution. But I want to use passive conversion with transformers.
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