dynamic range enhacement

Important Update (8/16/25) WalkPlay/TTGK is another company reacting to the issue of DRE-induced distortion associated with the CS431xx chips! A new firmware release for the TRN Black Pearl changed a key parameter related to DRE operation. With this firmware installed, the Black Pearl does not...

TL;DR / Changelog [5/20/25] Eleven DAC/HP amp combo devices adopting either the Cirrus Logic CS43131 or CS43198 were tested, and seven of them were found produce the distortion dubbed a "Cirrus hump." Based on measurements from multiple sources (including this review), a list of...