Class D

Entertainment in georgehifi relentlessly defending inferior technology.   :)

Entertainment in georgehifi relentlessly defending inferior technology.

A typical response from a snake oil "fuser"

https://forum.audiogon.com/posts/1572264

Thanks for the reminder! I need to see about potential fuse change in this new Class D amp! Total fun!  :) 

I fail to understand one thing - people spend "their own money" to buy the class D amp they like. So what bothers George? Don't know what he is trying to achieve jumping on all the Class D threads and making a mess. The only reason I can think of is - his light attenuator must not be compatible with Class D and hence he does not want people to adapt them. George, can your attenuator drive Class D amps? I might look into Purifi or GAN based amp if I upgrade in the future. So what is your agenda? 

I smell another fuser

So what bothers George?

People, shillers and manufactures saying Class-D already great and is better than the best linear amps, which it’s far from yet.

So what is your agenda?

That Class-D has trouble with low <2ohm impedances, and that it’s switching frequency is too low for it’s output filter to remove completely without introducing large phase shift down into the audio band.

And if you accept it for what it is, nothing will be done to fix those inherent problems.

The Technics SE-R1 and maybe the SU-R1000 has done something about the switching frequency, but still the 2ohm load capabilities are not yet fixed, if you check independent tests.

can your attenuator drive Class D amps

you are a **** why bring that up if you know the answer already. If they have >33kohm input impedance buffers it can

But no need, I go direct into my Class-D’s from my dac
I own and listen to a pair of direct dac signal feed Hypex NC500 modules (with no buffers) with very big linear supplies, into my second system, which speakers are a nice benign 6ohm load.