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Old 9th August 2019
Gear Maniac

Is it ok to use the Hardy 990 with the hair all audio elements series?

Originally Posted by Hairball Audio View Post
A little info on why you should use a low ratio input with a 990 from the man himself:

John Hardy on his selection for an input transformer - YouTube

I agree with Jeff that if your goal is to do an opamp "shootout" with a circuit using a high ratio input transformer, you're setting up the 990 at a disadvantage. One of it's key features is low input noise and it wants a lower impedance at it's input to achieve that.

You can use whatever you want and you may dig it, hate it, or not really care. But is the realm of a "shootout" I wouldn't compare a 2520's and 990's in the same circuit.