Class D entirely depends on the filtering after the amplifier stage.
If any of the filter components degrades due to component age, heat, etc. the carrier signal will bleed through causing hiss/humm etc.
It also brings high frequency “noise” close to the analog audio signal, which in my somewhat informed opinion is not a good idea.
To toot my own horn: Amplifier classes overview
Zeos is getting processed and will be more active in the hifi asylum. 
I would be pleased if he would test the Singxer Sda 2 with the Singxer interface Su 2 and 6.
The tube headphone amplifier from Quicksilver would be great.
I’d love to see Z review the Rogersound Lab CG-25:
You had me at MTMs.
Got alot going on.
Cheapest balanced DAC ever? 
Peavey USB-P. 50$. USB in, 2XLR out. Not even a volume knob.
https://www.amazon.com/dp/B004A4PSEU?linkCode=gs2&tag=zeosca-20
From a buyer:
The heavy lifting is done by a Texas Instruments PCM2705, with an SNR of 98db, sample rates of 32, 44.4, and 48 kHz. This is an older USB 1.1 complaint device and has since been replaced by the PCM2705C with USB 2 compliance.
I believe Zeos never talked about Dayton’s offering since the B652-Air.
Here’s something that looks good for 70$ for the pair.
@ZeosPantera hey Z, can you review the newer 125x 225x and 325x?
I would really like to know if the sound / fit quality scales up noticeably to justify their higher prices. I have also never seen any full family review from top to bottom for the Prestige series and I really really would.
I would love to see some ghentaudio amps get reviewed.
Im going to box up the 60x and 80x and send them to @DMS and he will send me his crusty sweaty 325x… So that will get a review.
good thing you have those Pads to swap for, LoL!
I would love to see a review of these:
Avantone Pro Planar Reference-Grade Open-Back Headphones with Planar Drivers, Black https://www.amazon.com/dp/B08H2GQBS5/ref=cm_sw_r_apan_glt_fabc_EFF43EC3XZY4EH1926KH
I would like to see Princess Pastah do a review of Zeos.
@ZeosPantera please start reviewing Bluetooth speakers. there are so many and only some of them will be any good, but there is literally nothing out there for reviews on them.
I feel like it’s been a fair bit since Z was unreasonably mad at something, so another angry review would be kinda fun
Chopsticks. Please do a review on chopsticks.
