Wouldn’t they need some sort of microprocessor factory for this?
Wouldn’t they need some sort of microprocessor factory for this?
They just use a lot of resistors, some electronic switches, and use an FPGA to control these switches to make a DAC.Wouldn’t they need some sort of microprocessor factory for this?
No. FPGA is a chip that you program to perform logic functions. It is like lego blocks that you put together using specialized tools and then download into the chip. FPGAs are much faster than microprocessors although much harder to program.Wouldn’t they need some sort of microprocessor factory for this?
What R2R DAC does it use?
It's funny to see that a relatively cheap DS chip can still outperform an, as good as SOTA, Signed Magnitude R2R costing factors more.
It also has great filters as well as a NOS capability (with all its downsides).
I'm confused by your questions. It's an R2R DAC made from the ground up, sign maltitude ladders with FPGA error correction. There's no PCM63/TDA1543/AD CRUZ/DSD1793 or other multibit or hybrid multibit chip used, it's a custom boutique design.
Really crazy to see it reach 116dB SINAD. Compare to Soekris, Airist, Denafrips, Audio-Gd(laughable performance). It's state of the art but yeah, $4000...
I'm confused by your questions. It's an R2R DAC made from the ground up, sign maltitude ladders with FPGA error correction. There's no PCM63/TDA1543/AD CRUZ/DSD1793 or other multibit or hybrid multibit chip used, it's a custom boutique design.
Really crazy to see it reach 116dB SINAD. Compare to Soekris, Airist, Denafrips, Audio-Gd(laughable performance). It's state of the art but yeah, $4000...
This seems really interesting from an engineering heroics perspective, but from The developer's perspective, is there any supposed benefit to a discrete R2R design versus just doing a cheap Delta sigma chip based solution? Honest question.
Are there any ears only listening tests that support that hypothesis?So far the only argument is that they have some unknown quality that no one has discovered how to measure yet.
from The developer's perspective, is there any supposed benefit to a discrete R2R design versus just doing a cheap Delta sigma chip based solution? Honest question.
Are there any ears only listening tests that support that hypothesis?
Time domain response, impulse and step response without pre-ringing.
Might be interesting to make serious DBT tests.
Nice, good job to Holo Audio for engineering an R2R DAC that finally measures with the big dogs. Very curious how folks over on those other forums will try to describe this DAC with their flowery words. A DAC with their “magical” R2R that measures well might make their heads explode.
While the engineering and aesthetic design are top notch here, I’m quite happy with my similarly measuring m500 for 10% of the price.
I do not think that the Soekris 1541 has laughable performance (look at the measurements on SBAF), but maybe that was reserved for Audio-Gd.
Roberrto
This implementation (as far as I can gather) doesn't even use a DAC chip.