I own an IFI Zen Air DAC and I’m curious to know if the Dual Core BB DSD1793 multibit chip in it processes a 16bit audio by being bit-perfect for the top 6 bits and using DSD256 for the remaining 10 bits. Can anyone please verify this? Firmware version 7.4b @iFi audio...

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https://hydrogenaud.io/ is also down for me.

Could anyone check and confirm if https://www.foobar2000.org/ website working or not?

HQP is 3dB less dynamic (PCM to DSD) and that's why it sounds "solid".

Yes, 3dB less SNR with HQP. That's why it sounds different.

Does PGGB add pre-ringing?

Okay, after a long listening period, it seems like PGGB-RT (8fS, Extended, Speed) is performing very well on my system (JBL 305p mkii, IFI Zen V2) but there is something missing. I think it's "musicality". There is no doubt that PGGB has an analytical characteristic in its tune, but I think...

Did you hear any loss of warmth when processing with PGGB at 1536/ 768? If I opt HQP for PCM to DSD upsampling, which filter and modulator would be appropriate to compete with PGGB?

That's it. PGGB files doesn't need further upsampling.

HQP filter?

My current setup: Foobar (mmcss pro audio, priority 7, 50ms buffer, 64bit ASIO high priority) + PGGB-RT (8fS, Extended, Speed, gain disabled) + Bit-perfect/ Fabfilter Pro MB (Dynamic, 2x oversampling, -3dB output trim) DSP + IFI Zen DAC V2. (256 samples at 44.1) + High quality cables + Dual...

Post revoked due to irresponsive forum.