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Author Topic: U87 vs U89  (Read 2487 times)

Recording Engineer

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U87 vs U89
« on: August 31, 2016, 01:43:37 pm »

All over the Internet I can find people talking the sonic differences between a U87 and U89. I can also see the capsules are completely different from each other and the circuit is different as well. However, no one mentions if they're using the same FET and output transformer or not. Anyone know? I don't even own either, or plan to, but was just curious.


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Re: U87 vs U89
« Reply #1 on: August 31, 2016, 01:51:56 pm »

Same FET, different transformer. (Not that this matters much sonically, in a discrete op-amp design like the U89.)
Klaus Heyne
German Masterworks®


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Re: U87 vs U89
« Reply #2 on: October 25, 2016, 09:47:59 am »


U89 circuit don't have more approach with u47fet circuit? I remember that read somewhere that...
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