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Re: UPDATE Comparison: OPA627's vs AD8620's in Audio Alchemy DDE1.2 DAC's Analog Output

I've been listening to the OPA637 BPs in a different application and think they sound very nice. They are said to be similar to the opa627s, but have slightly better specs and are only stable for gains of 5 or more.

I've gone to positive biasing on my AD825s -- about 1.5mA in my DAC. They seem a bit better this way -- a bit more lifelike, verses the negative bias. I don't have a firm grasp on the changes yet, because I've been borrowing a friend's amp and am less sensitive to listening differences.

For myself it's impossible to say how the opa637s compare to the AD825s because they are in different applications. I do like both though.




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  • Re: UPDATE Comparison: OPA627's vs AD8620's in Audio Alchemy DDE1.2 DAC's Analog Output - highendman 09:01:40 04/23/03 (0)


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