cirrus hump
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Review of TRN Black Pearl: Portable USB DAC & Headphone Amp with 10-band PEQ
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...- jkim
- Thread
- cirrus hump dre dynamic range enhacement trn black pearl
- Replies: 271
- Forum: Combination Audio DAC and Headphone Amplifiers
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Test of "Cirrus Hump" Distortion of Apple MacBook Air Audio Output
After writing my recent review, "On the Distortion of Cirrus Logic CS431xx-Based Devices: A Comparative Review", I wondered if the same anomaly exists in other electronic devices that rely on Cirrus Logic D/A converter (DAC) chips, in particular Apple MacBook products that still provide analog...- jkim
- Thread
- apple macbook cirrus hump cirrus logic cs42l84a-cwz
- Replies: 5
- Forum: DACs, Streamers, Servers, Players, Audio Interface
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On the Distortion of Cirrus Logic CS431xx-Based Devices: A Comparative Review
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...- jkim
- Thread
- cirrus hump cirrus logic cs43131 cs43198 dynamic range enhacement fiio ka15 hiby fc5 tanchjim stargate ii trn black pearl ttgk tt39518f01-pro
- Replies: 488
- Forum: Combination Audio DAC and Headphone Amplifiers