ICIETDIYEUR
Active Member
O-NOORUS D1 and D3...
Why not a D2 ?
Who knows...
Why not a D2 ?
Who knows...
I have heard about few of their products in pipeline and their ideas are really good, don't know how big are they or their team but they aren't short on talent for sure.Hi.
I really didn't expect it !
@Alexander Lin works for O-noorus and is member here, it should be interesting to be able to talk to them.
The NJW technically suitable for this task, audiophile volume control? I used to deal with pga2311, I was satisfied with it, but that was 10 years ago.that's an interesting point
i believe this uses the NJW1194
the others use ANALOG vol. pots with their own log or 45 degree curves
but yeah i feel like the D3 with XLR would be pretty much the cap that suits many
The new model will dissipate more heat.Hi Mister LIn.
I congratulate you on your D1: I like it very much, thank you.
Otherwise 2 TPA3255 must give off more heat for sure !
The power required must also be so with a large power supply ?
In fact, the Aiyiama D05 or Topping PA5 II can also be listened to at low volume, unlike the Fosi V3 or ZA3, which have a switch combined with a volume control.One sure thing I can say is that the D1 is THE ONLY class D amplifier on the market (compared to the different FOSI or AIYIMA I owned) that allows listening at very low volume thanks to its digital volume control which, in addition to its reliability and precision
I'm pretty sure that what sensitivity means is the voltage required to provide max power with the potentiometer at max. Basically whatever voltage you provide is not attenuated and goes directly to the opamps and from there to the chip inputs and finally amplied (total amp gain). Basically is input voltage x amplifier gain. If you provide 2Vrms and the potentiometer at 10% then the voltage that is multiplied by the gain is only 0.2Vrms. Or you can provide 0.2Vrms and pot at 100% for the same effect. You should not worry, for me it is always better to provide a higher input signal(and that's because the DAC produces a cleaner signal at higher voltages(2vrms vs 0.2Vrms) which then is amplified by the amplifier.Has anyone tested the input voltage for the RCA port at D1, what is the limit? My sound card outputs 2.2Vrms, I'm afraid that D1 does not support a signal greater than 1.3Vrms, as for example indicated in the specification at Topping.
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Please, specify at what position was the potentiometer. If it was at 100% then a 1Vrms signal can easily become 30Vrms(at 29dB gain) output voltage which becomes (30Vrms)^2/4ohm=225W.I had no problems with topping, but when I measured the frequency response in RMAA for O-noorus DA10 via miniJack input I could not get results because of overload, the output signal was with large distortions. Recently I measured fosi ZA3 via TRS balanced input, when applying a signal above 1V I observed distortions greater than 1%, at 900mVrms everything was fine.