HQPlayer - iFi Pro iDSD DAC/Amp

Anyone using the new iFi Pro iDSD DAC with HQPlayer?

I’m currently demo-ing one.

Those that have one already know but for others, it’s FPGA can up-sample any DSD256 (and under) input and any PCM384kHz (and under) input, up to DSD512 or DSD1024.

When fed DSD512 and PCM768kHz, it can’t up-sample to DSD1024, so only analogue filtering applies (like the micro iDSD’s).

So I’m playing around with HQP Embedded, comparing HQPe DSD256 --> FPGA DSD1024 versus HQPe DSD512. Both sound superb.

I would assume the performance/quality of HQPe’s filters (incl. noise shaping) is well and truely captured/covered when upsampling up to DSD256, so there’s no harm in letting the FPGA take it up to 45/49MHz?

@jussi_laako have you got one yet?

No nasty pops on headphones and no funnyy behaviour like I’ve previously seen with my micro iDSD BL, so far… So far it’s sounding great.

I’m not sure how it is doing the job, so it may be harmless, or may not be. Would need to measure it first. To be sure, I’d leave it off though.

No, it is a bit expensive to buy just for testing and it is not technically different enough from micro iDSD to warrant the spending.

That is good and what I’d expect!


Very true - but the DAC hasn’t got a clue if it’s being fed a DSD256 recording or up-sampled DSD256. So I would hope/expect Thorsten is doing no harm to any incoming DSD256!

If you lived down the road from me, I’d happily bring my Pro iDSD over to you to measure and listen. A little far from Australia though :slight_smile:

Sure it doesn’t know the difference. But if the extra massaging is going to improve anything is another question. So until investigated, to be safe, I’d leave the extra processing off. I’d personally just send DSD512 and have the DAC pass it through “bit-perfect”.

Yeah, we are almost at the opposite sides of the globe. :slight_smile:

I will keep eye if I can get one on substantial discount or eventually get used one cheap. Or a loaner unit from some local.

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I’m thoroughly enjoying HQP Embedded with Pro iDSD driving my MrSpeakes AEON Closed cans.

I have a fanless i7-7700T coming next week (this one) to replace my noisy Dell Inspiron 7567 i7-7700HQ

I’ll email you next week once I have it, to ask if you can (please :nerd_face:) transfer my HQPe license across to the fanless i7-7700T

After a couple of weeks of relaxed listening of DSD512 vs DSD256–>DSD1024, my ears do prefer just letting HQPe take it all the way to DSD512.

Allo were quick to help me patch native DSD support in DietPi and it’s been rock solid reliable.

I’ve just stuck with the tried and tested poly-sinc-short-mp-2s + ASDM7 combination and have thoroughly enjoyed it. I haven’t even felt a need or want to try any other filters with Pro iDSD yet, and I’m in no rush to. It sounds so good as is.

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How to install Hqplayer in Pro idsd?

You can’t install it inside Pro iDSD

Also, I don’t have if anymore. Replaced it with RME ADI-2 FS DAC (AKM)

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