Class D


Been thinking of trying a D amp to reduce clutter. Most that I see are not rated at 2 ohms.  My PSB Stratus gold's will drop to 3 ohms or lower at some frequencies. So my question is will these types of amps handle this impedance ?
Thanks in advance. Chris
128x128zappas

I smell another fuser

Sorry, not a "fuser" but I do understand AC circuits. Not so sure you do based on your posts.


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

May want to check out some tests at audiosciencereview.com  With the exception of the Benchmark, nothing out there matches the best Class-D on many critical specifications.


That Class-D has trouble with low <2ohm impedances,

Nope, but you do have trouble understanding how Class-D amplifiers work, and amplifiers in general as it relates to loads. I can and have talked in great details the real limitations of Class-D amps as it applies to low impedance loads. I Challenge You to do the same.


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.

And wrong again. Been fixed for over 5 years now. Sorry that your information is dated and you don't understand enough about amplifier design to know how this works.


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

Why do you keep posting wrong information?

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)


I don't know your  DAC, but I hope it has very low output impedance. The NC500 without buffers needs a low impedance source or you will degrade its performance.
Ah, well, I'm starting to have some perspective here. I was unaware - never bothered to care or look - to discover georgehifi is an industry member who sells his own attenuator. Well, NO WONDER there are issues here, and ferocious debates in regard to class D! 

georgehifi, please accept my apology; I thought you were a curmudgeon with a bad attitude toward the industry. You are free, of course, to argue, defend, your product as you see fit.  :) 

I'll recuse myself at this time on further comment on class D in general as compared to other genres of amps. I will have plenty to say about that in the article. I most definitely am checking into an aftermarket fuse for this class D on review. Already spoke with the manufacturer to get info on the value of fuse to acquire.  :) 


I don’t know your DAC, but I hope it has very low output impedance. The NC500 without buffers needs a low impedance source or you will degrade its performance.
Are you blind as well as deaf?

You are free, of course, to argue, defend, your product as you see fit. :)
I don’t have to it speaks for it’s self. Unless ****** like milpai bring for no reason it into a Class-D amplifier thread but to try to cause a fight and you following like a rat up a drain pipe, just like "fusers" do!
I smell another fuser
Good job. Did not know this characteristics of yours. My neighbor also has 2 Vizslas.

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

you are a **** why bring that up if you know the answer already.
To make people aware of your agenda and why your keep barking. But your smelling characteristic is something that you should use to search for people with COVID. That way you can stop the spread.

But no need, I go direct into my Class-D’s from my dac
That's what I thought, but wanted to confirm. 

@douglas_schroeder 
You might not be aware that georghifi is also a big A-SO (anti-snake oiler). In fact he might be the biggest A-SO in the industry, from down under. That's how he smells people :-) 

You are free, of course, to argue, defend, your product as you see fit.  :)
It's called fierce arguments that are futile. But I am a bit disappointed in his response to my post. I was expecting him to call me sunshine. I like it when he tries to defend by calling people names. It will get funny from here.
Is it too much to ask that we stay on topic?!
Stop baiting George and, George, stop taking the bait.
Geez!!!