In earlier work (paper 7125) a model was presented which explains that low level voltage audio signals are extra weakened when they are fed through a transformer. This extra weakening is caused by the signal level and frequency dependant inductance of the transformer. Combining measurements and calculations with the threshold of hearing curves, showed that noticeable loss of micro details occurs in the frequency band from 20 Hz to 1 kHz. This paper expands the previous work with measurements on several valve amplifiers, refines the model and makes it applicable to macro signal levels close to saturation of the transformer. Also methods are given to minimize this extra weakening in transformers.
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can
subscribe to this RSS feed.
Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.
