AES Journal Forum

An Investigation of Motional Feedback Disk Recording System Design

Document Thumbnail

Even though the manufacturing of disk mastering systems had ceased by the mid 1980s and the equipment used in this industry was largely manufactured between 1950 and 1985, such systems would still benefit from further research and development because of the recent resurgence of consumer interest in vinyl records. During the tests and experiments described in this article, it was observed that a power amplifier of high quality and performance may not be compatible with a motional feedback cutter head system. Cutting amplifiers need to be designed and optimized specifically for this application. The author explores the design problems of moving coil transducers using motional feedback as applied to professional disk recording and mastering systems. Significant improvement can be achieved. Wideband measurements from 10 Hz to 100 kHz should be considered to be the minimum standard and ideally the range should be DC to 1 MHz. Square waves are used as a test signal and development aid. Cutter heads have traditionally been the limiting factor in the performance of a disk recording system, as well as the most fragile and frequently damaged component. It is recommended that disk recording systems be designed to be transducer limited rather than electronics limited.

JAES Volume 66 Issue 11 pp. 966-978; November 2018
Publication Date:

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 report yet.

Subscribe to this discussion

RSS Feed To be notified of new comments on this report you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this report and are an AES member then you can login here:

If you are not yet an AES member and have something important to say about this report then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.

AES - Audio Engineering Society