Articles about room equalization:

- Ioan Allen: The X-Curve: Its origins and history

- Michael Gerzon: Digital Room Equalization

- Bob McCarthy: Equalizing the Room

Sound reproduction standards and recommendations:

- EBU Tech 3276-E, AES TD 1001.1.01-10, ITU R-775-1,

- SMPTE 202M and ISO 2969 (curve X), SMPTE 222M,

- Recording Academy's Producers & Engineers Wing Recommendations for Surround Sound Production.

- Yamaha Multichannel Monitoring Tutorial Booklet