ghemink said:
the answer to your question is a decidedly yes. I have heard quite a few digital amps lately, T/SuperT, HK DPR1K, UCD, Panasonic XR, and a few in my computers/pda/cell phones, to name a few. not to mention a NuForce Ref9.
Sound quality wise, they are on par with a decent SS amp, and I would consider them a notch below my HK630 but in all honesty I would be hard pressed to tell them apart in a DBT.
In my view, they are grossly overhyped, in terms of sound quality.
That is not to say that they are bad amps. They are just indistinguishable from a good analog amp.
classd4sure said:
I don't know why in theory they are superior but Class D, no matter how beautiful it is in theory or in its current state of affairs, started low.
Pafi said:
Yes, you're right Pafi, that is not a correct statement. I don't know what I was thinking about.
From the graph at 1.125W output the class d amp is about 25% efficient. So it's input power would be 4.5W and the other 3.375W would be wasted as heat.
The class ab amp is about 7% efficient. That means it's input power would be about 16W, so 14.875W would be wasted as heat.
Below that output power I can't easily see what the efficiency would be but it's pretty close between the two.
In terms of efficiency class d probably wouldn't be any better for a headphone amp. In terms of sound, that is yet to be determined.
Not neccessary. My arguments implies only that a 80W ClassAB can be more efficient as headphone amp then a 80W classD. But a 2W ClassD is probably more efficient at 100 mW then a 2W ClassAB! This really can be seen on the other link of BWRX.
samsagaz said:
The poor guy (samsagaz) started this thread with a simple question (see above). Most of the thread now comes down to in my opinion irrellevant quarreling about mA`s quiescent current. He just wanted to know whether a 200W Class D will give a nice sound. Personally I think it will blow away the above mentioned conventional amp, however, anybody heard that Rotel AMP? So I would say go for Class D and you won`t regret it.
Best regards
Gertjan
ok i will purchase an ClassD kit and some ClassAB Kits and will compare the results 🙂
Thanks for all your words
Thanks for all your words
Well there you go. Getting both and listening for yourself really is the best way to find out anyway 
Have fun building sam 🙂
Have fun building sam 🙂
C'mon, you know you can't have a "class d highend??" thread without all kinds of fighting 🙂
I can also highly recommend the UcD180 modules. They're about as bulletproof as it gets and absolutely qualify as high end in my book.
I don't think you'd regret em one bit. It is a good idea to get a few and experiment with for awhile before planning your entire system though.
I can also highly recommend the UcD180 modules. They're about as bulletproof as it gets and absolutely qualify as high end in my book.
I don't think you'd regret em one bit. It is a good idea to get a few and experiment with for awhile before planning your entire system though.
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