28-Oct-2024, 15:49
Yep, the only information about the new ADH except specs is that:
5. What is Next-Gen ADH?
For Devialet Astra, we further developed our signature SDH-implification. In detail, in-depth work was carried out on the functioning of the class D amp, so that it can feed power linearly and in real time to the class A amp, particularly at high frequencies where the class A is more demanding.
The result is inproved interaction between the two amps, and extremely efficient power efficiency. The product consumes less power while achieving even more precise, crystal-clear high frequencies.
I am sure, some can remember the discussion about the non linear power over the frequency range, which was started after measurment of an well knows asian looking guy in the HiFi scene, can't remember his name right now. Thus showing high frequencies has much less power available than low ones.
Now it seems, that Devialet had success to make the power feed linear and in real time with the new ADH. It seems from the specs, that it was not possible to keep the specs of the Expert pro, but can be, that the new ADH sounds now really right like an class A amp but with enormous power. The specs are still stellar by the way.
For me the Purifi Eigentakt amp is another great invention for using the power of class D amps, but real class A sound with class D power may be still the more promising way.
5. What is Next-Gen ADH?
For Devialet Astra, we further developed our signature SDH-implification. In detail, in-depth work was carried out on the functioning of the class D amp, so that it can feed power linearly and in real time to the class A amp, particularly at high frequencies where the class A is more demanding.
The result is inproved interaction between the two amps, and extremely efficient power efficiency. The product consumes less power while achieving even more precise, crystal-clear high frequencies.
I am sure, some can remember the discussion about the non linear power over the frequency range, which was started after measurment of an well knows asian looking guy in the HiFi scene, can't remember his name right now. Thus showing high frequencies has much less power available than low ones.
Now it seems, that Devialet had success to make the power feed linear and in real time with the new ADH. It seems from the specs, that it was not possible to keep the specs of the Expert pro, but can be, that the new ADH sounds now really right like an class A amp but with enormous power. The specs are still stellar by the way.
For me the Purifi Eigentakt amp is another great invention for using the power of class D amps, but real class A sound with class D power may be still the more promising way.

