Not sure if the DSD128 limit applies only when using DoP or always - because even the DX160 plays DSD256 (but not DSD512).
Also worth noting, for comparison, that the DX160 unfolds MQA only 4x (to 176.4/192 kHz), even though it plays PCM 352.8/384 kHz) just fine, and so could, in theory, unfold to 8x (but that overloads the CPU, i guess)
Coax for DsD128 and PCM 384Khz is very powerful. I still do not know of any interfaces that can take Coax 384Khz input. Most of them are stuck 192 only
CL chips can do DSD256, the question is DSD512 ? Where even Dx220 and Dx200 could handle, we would expect Dx300 to also be able to ? Beside it is the trend isn’t it ?
But who knows ? lol
There is a lot of recordings in DSD256, and really nothing in DSD512. You upsampled low-res PCM recordings to DSD512 to squeeze the most from the hardware you had. What if DX300 hardware would play DSD256 better than other DAPs play DSD512? What if it would play your original materials better without upsampling into DSD?
Sometimes the same goal can be achieved by other means. By the goal I mean high quality playback, not frying eggs by the DAP
I think it would depend on how iBasso implements the FPGA and it’s interface. Maybe the idea is to provide upgraded bitfile (equivalent of firmware for embedded cpu) with new features. Reprogrammability is one of FPGA’s strength.
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