Can someone tell me the Class of my Tandberg amp


I was wondering if someone with a little more expertise could chime in and look at the diagrams and figure out what class the amplifier is. I know that the class A's are usually the most sought after, or AB. Isn't this a classification of their efficiency? If so why does it translate into better sound?

Thanks Again,

Nate
nate_d

Showing 1 response by marakanetz

One or more points are missing from the link provided by Gbart:
One of them is shown notch distortion in class B which barely means a thing.
It can be equal to distortions of class A due to non-linear transistor output characteristics. The larger 'range' of output is utilized the larger distortions are such as the shape of positive sine-wave may be different from the negative i.e. not as symmetric as shown. To reach the output signal 'closer' to ideal, only the small portion of transistor output characteristics can be utilized hence limiting the output power of amplifier.
In class B symmetry becomes less of the issue as long as transistors are matched or there are complex circuits of DC offset optimization between a pair of transistors.
The fact that the link above somehow explains the amplification classification (mainly for ss amps; tube amps have similar such as push-pull or single-ended) and partially answers your question should less-likely affect your opinion to the amplifier you own.
The only important facts of the amplifier should be synergy with source and speakers