Tweakers' Asylum

Posted by djk (M) on April 30, 2003 at 01:33:56

In Reply to: Re: Complementary posted by Apollo on April 29, 2003 at 02:54:21:

The AD797 will drive 1K to .5V and stay biased in class A. If this is just a phono preamp it will never need to put out more than .5V anyway, that's what the line amp is for.

Most opamps have quasi-complementary output stages and thus can benefit from a pull down resistor.

The AD797 has a complementary output stage, I don't think it will benefit.

It also has very high bias as it comes anyway, hence my remarks above.

As always, depending on your driving habits, YMMV.