An add-on facility for audio power amplifiers is described, by which nonlinear distortion products in the audible range of frequencies are reduced by a typical 25-30 dB. The improver uses the principle of nested differentiating feedback loops to increase the feedback around the amplifier. The improver also corrects phase nonlinearity in amplifiers, improves loudspeaker damping, increases isolation between stereo channels, and reduces hum, noise, and dc drift.
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.