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Old 19th July 2003, 06:44 AM   #11
Mad_K is offline Mad_K  Norway
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Then you're missin' out big-time methinks...
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Old 19th July 2003, 05:28 PM   #12
Alex S is offline Alex S  Singapore
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The TDA2050 does sound much better than the LMs but needs battery or regulated supply because of it's low PSRR and hence should not be implemented with a minimal style power supply a la Gaincard.

Other TDA chips e.g. TDA7294 have more complex circuitry (such as mute) and probably may not sound as good.
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Old 19th July 2003, 08:33 PM   #13
Mad_K is offline Mad_K  Norway
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I used 2*15000uF Rifa PEH200 caps +100uF+100nF local decoupling....... 2*15V 200VA Toroid with my TDA2050. Circuit as in the datasheet (including Zobel).
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Old 19th July 2003, 08:43 PM   #14
mikelm is offline mikelm  England
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[QUOTE]Originally posted by Alex S
The TDA2050 does sound much better than the LMs but needs battery or regulated supply because of it's low PSRR and hence should not be implemented with a minimal style power supply a la Gaincard.

I'm glad you said that. I was begining to doubt my own experience. someone asked me to make an amp that would run from a 12V battery and because of the low voltage I chose tda2050. two per channel balance working. everyone that heard that amp really liked the sound and it was that, and thorsten, that got me back into the chip amp scene.

cheers

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