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Manual vs. Auto Bias

In considering new directions in which to take the evolution of my system, I have run into conflicting claims as to which results in less distortion...auto or manual biasing, according to what product(s) the so called expert manufactures and/or represents...(Surprise!) How about some input from average consumers like myself who have had more experience with one or both?
anjowin
hifihvn
943 posts
 
I don't have any preference. I go by what has the sound I want.
brf
1,715 posts
 
I like a manual bias as it allows for fine adjustments to squeeze the last drop of performance from the tube and circuit.
orpheus10
8,668 posts
 
I have auto bias. It sounds good and I barely know what bias is. I pay to hear the band, not to make the music.
samhar
1,048 posts
 
My experience has been some amps are easy to bias some are not so easy. Check the instructions on how to bias the amp before buying anything. Personally I like to set the bias if the process is reasonably easy.
charles1dad's avatar
charles1dad
10,250 posts
 
Anjowin,
I have a push-pull 100 watt amp(6550/KT88 tubes) that requires manual biasing(very simple to preform) that sounds very good. I also own an auto biasing 300b SET amp that`s the best sounding amp(without question) i`ve ever owned thus far.If a auto bias circuit (in theory) adds distortion, that has`nt been my experience at all.
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