Home Propeller Head Plaza

Technical and scientific discussion of amps, cables and other topics.

Re: High Output Impedance On Line Output = BAD DESIGN (but passive preamps)

I worked with the company Audible Illusions for several years. The output impedance of the preamp was about 1.8K. This is because it was a paralleled open loop triode. No followers were used. It sounded great, and it is still very successful in the audio world.
I first worried about the rather high output impedance, but I found it not very important, so long as it did not change much with frequency.
My own open loop CTC preamp, using open loop design and complementary fet topology has an output resistance of 1Kohm that could potentially effect an input transformer in a power amp, IF someone chose to use one. Interesting problem.


This post is made possible by the generous support of people like you and our sponsors:
  Signature Sound   [ Signature Sound Lounge ]


Follow Ups Full Thread
Follow Ups


You can not post to an archived thread.