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- #121
I had measured the filter response but forgotten to include it. It is now in the review:
I like #1.
I like #1.
Sure. Here it is for both 1 Khz and 12 kHz tones:Amirm, can we see the ultrasonic FFT ?
That's odd Amir. Min and lin phase fast, min and lin phase slow are usually right next to each other. Here Apodizing and Linear Fast seem to have been switched. Documentation mistake, or is the corresponding filter programmed wrong?I had measured the filter response but forgotten to include it. It is now in the review:
I like #1.
I believe they switched #1 and #5 then. Possibly.I did measure them in sequence and typed in what the manual says.
Ran them again and to my eye they look the same:I believe they switched #1 and #5 then. Possibly.
Best I can find is 599 USD now. Are you in the us?
So unless you see a difference, either the manual or the firmware may be wrong.
Ran them again and to my eye they look the same:
View attachment 36471
So unless you see a difference, either the manual or the firmware may be wrong.
Assuming any of us over the age of 25 cannot hear beyond 17k (at a stretch) wouldn't the brick wall filter sound the best due to removing the most energy above 20k from the amplifier load?I had measured the filter response but forgotten to include it. It is now in the review:
I like #1.
The noise is not recorded, but created in digital domain. I can have a 0 and 32,000 next to each other and with it, have infinite bandwidth for example. All I need is a computer program to create it. The pixels you see on this forum likewise have infinite bandwidth and violate Nyquist.I'm trying to grasp the concept of how white noise can be captured or produced at 44.1khz sampling. Isn't white noise spectrum infinite and we only have up to 22.05kHz per Nyquist?
It could but the level of aliasing is very small so allowing a bit of it while preserving the full bandwidth is not a bad idea.Assuming any of us over the age of 25 cannot hear beyond 17k (at a stretch) wouldn't the brick wall filter sound the best due to removing the most energy above 20k from the amplifier load?
The noise is not recorded, but created in digital domain. I can have a 0 and 32,000 next to each other and with it, have infinite bandwidth for example. All I need is a computer program to create it. The pixels you see on this forum likewise have infinite bandwidth and violate Nyquist.
So I need your advice Amir,whatever you recommend I'm gonna buy,should I get this?good stuff is coming at me too fast!!!Oh one note: this is a new product. I am not vouching for its reliability. Please don't buy it early and blame me if there are issues. My unit is working flawlessly so far.
To address/clarify this issue (i.e, The DAC is great but the headphone amp section not so much), @amirm, could you an appendix to this review that evaluates the headphone amp performance in the context of other headphone amps, including the SOTA competition?This is going to be one of those DAC/AMPs that people buy just for the DAC, like the RME ADI-2.
I am going to use it for my everyday unit. You have to decide for yourself.So I need your advice Amir,whatever you recommend I'm gonna buy,should I get this?good stuff is coming at me too fast!!!
I measured the output power versus distortion+noise already (50 ohm). I don't have a fixture for impedance measurement but it is going to be 2X higher.@amirm is there any chance you can run measurements using the 4.4mm output? Output impedance being my biggest question mark on this unit. Otherwise, I'd love to have one of these at work.