It's obviously not possible for everyone to know everything about every amplifier out there.
You may note in the attached article (from 2017) that Tommy Obrien (Digital Amplifier Company) talks about building his class d amplifiers with discrete parts, not modules, minimal feeback...and Our Cherry Amplifiers use both clocked and "continuous time" digital circuits with a variable switching frequency (up to 2 MHz), allowing audio bandwidth over 100kHz.
http://https//positive-feedback.com/interviews/tommy-obrien-digital-amplifier-co/
You may note in the attached article (from 2017) that Tommy Obrien (Digital Amplifier Company) talks about building his class d amplifiers with discrete parts, not modules, minimal feeback...and Our Cherry Amplifiers use both clocked and "continuous time" digital circuits with a variable switching frequency (up to 2 MHz), allowing audio bandwidth over 100kHz.
http://https//positive-feedback.com/interviews/tommy-obrien-digital-amplifier-co/