Skin depth for Al: 11.6mm/50Hz, 2.62mm/1kHz
Skin depth for Cu: 9.3mm/50Hz, 2.1mm/1kHz
For typical iron, 2.4mm/50Hz
For steel, one has to define what permeability steel it is.
Skin depth for Cu: 9.3mm/50Hz, 2.1mm/1kHz
For typical iron, 2.4mm/50Hz
For steel, one has to define what permeability steel it is.
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If you are thinking about buying a dac or a dac board, I would suggest that offerings will probably get better if you can wait another couple of months. Allo has announced an ES9038Q2M USB dac that can do DSD512 in synchronous/master mode, and with measured distortion of -123.7dB@1kHz (using an AP). It has an 8-layer board, and they apply Ott very carefully. It should be pretty good, I would expect.
I suspect that was a dodgy sample used for the photos 🙂. But if you cut one power feed wire slightly longer to compensate that should fix it ? 😛
As I have said 1kHz THD is a pointless thing to use. I have to ask though, why would I want DSD512? Is this just for those who want to pre-process their PCM to avoid the DAC doing it?
Right now 8’
New system will be closer to 9’ to 10’.....roughly 3 m for you euro fellers!
Looks to be your version of 'sob' or whatever you want to call it when you don't like critical feedback.
Haha really "difficult" task from feet to m 😀
BTW, imperial units are used in USA, Palau, Marshall Islands, Micronesia and Belize. The "rest" of the world uses metric units 😀
10-4....thanks,I’ll check that out.
I factor in x max and don’t like to be over 75% at my max listening level which calculates to about 50% @ 90-95db...my setup is designed from the ground up.
Of course these are calculated from box sims and xo’s so some error is expected but it keeps things leashed in a little with room for dynamics.
Ill google it but I’m really liking this RME......it ticks a lot of boxes.
What’s the $$ looking like on the Allo?
Some screening yes, but still there is direct output.
If you are so against output inductor on the PCB board, do you have measurement to show how much THD will increase with output inductor on the board comparing with output inductor far from the PCB board?
I know that D. Self showed inductive influence between channel depends of angles between coils.
There so many amps with the output inductor on the board, they must all sound terrible.
By the way I don't have any commercial interest in that amp.
The RME ADI-2 PRO is about $2,000.
The Allo USB dac is expected to be under $200.
The non-PRO version of ADI-2 is another story if that's what you are thinking of. I personally would not buy one for hi-fi, but I would use one for measurement applications. Also, they are SPDIF only, unlike the PRO version which includes USB.
Haven't tried the dac-only version myself.
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Bob,
I have one since about 2 years and it is great, what can i say? For use as a measurement input device, it is not far behind pro gear like AP. For music reproduction, it is flawless. I something happened with the one I have, I would order a new one tomorrow.
And car tyres are mixed! metric width, imperial wheel size!
I'm of the generation that grew up in a mixed metric/imperial world and so well confused. Although trying to use Rankin rather than Kelvin is a taste I never aquired.
I'm of the generation that grew up in a mixed metric/imperial world and so well confused. Although trying to use Rankin rather than Kelvin is a taste I never aquired.
You have made this point before and I am totally in agreement that this is relevant since we can perceive signals way below the noise floor. It is most pertinent to have THD figures without the noise component. Why is it, that manufacturers don't provide this information? All spec sheets of amplifiers I am aware of show the same noise dominated down slope of THD+N. I would like to see what goes on within that triangle. Hearing is logarithmic, correlated perturbances matter, even if they appear to be swamped by noise.
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