Hi, I bought an iBasso D4 roughly a year ago and am now wondering if I could modify it to support higher sample rates from the USB. I've done a bit of googling and noticed that it's DAC (Wolfson's WM8740) is capable of 24/192kHz. I also found out the D4 is using a TI PCM2706, which apparently limits the the input from USB to 16/48. Is it possible to have the PCM2706 removed and have a TI TAS1020B installed in it's place, and expect the DAC to support 24/96 from the USB? I'm a bit new to this and have never soldered before too. Please excuse my ignorance if this idea sounds retarded. If on the other hand this can work, I may be able to get somebody with soldering experience to do this. (This is implying it's possible and I can buy the TI TAS1020B). Thanks.
I doubt it since they look like totally different chips.
Out of curiosity; how come it has a PCM2706 and a Wolfson DAC? The PCM2706 already has a built-in DAC and headphone outputs.
I'm honestly not sure why iBasso did it. I'd imagine they wanted to use the Wolfson chips but limit the sample rates from USB.
That's odd I hadn't noticed this. I'll search around for a chip that supports the higher rates.
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