The older Classe amps are slightly on the darker warmer side and might be lacking transparency but the latest generation of Classe Delta series such as the OP’s CA-5300 amp is very neutral with great dynamic and excellent transparency and punch. The newer latest generation of Classe Delta series amps sounded very different from older Classe amps. The latest generation Classe Delta amps sounded very transparent with excellent details, nuances, speed and excel in PRAT and very punchy.
In my dedicated HT room I do own the latest generation of Classe Delta series amps such as the CAM-600 monoblock amps, CA-2300 amps paired with all B&W 800 series D3 speaker surround system and my HT system sounding massively dynamic with lots of dynamic headroom, excellent details, transparency, clarity, speed PRAT. Actually these latest generation Classe Delta series amps excel in details, transparency and speed.
And the noise floor is unbelievably low. Very quiet design amplifiers especially the CAM-600 monoblock amps.
However, I have never heard the Classe amps paired with some Golden Ear Technology speakers before so not sure how they would pair. Well, the OP apparently has been using the Classe CA-5300 five-channel amp, which is the latest generation of Classe Delta series amp, to drive his Golden Ear speakers. But I personally have never heard the pairing before. All my Classe Delta series amps (latest generation) are paired with the newest B&W 800 D3 speaker system in my dedicated HT room. They sounded great together. Not sure how the Classe would sound on the Golden Ear speakers.