Good on you BD!
So it looks like the mother of random QC failures is still alive...
So it looks like the mother of random QC failures is still alive...
I'm half tempted to order one of these to see (hear) how a decent AKM implementation compares to my Sabre chipped D50 and Chord Qutest.
I have an ongoing issue with ESS Sabre DACs I have owned, there is always a problem with tired ears at some stage of listening and it has varied in intensity & timing depending on the particular DAC, I guess it is probably also dependent on the particular person's sensitivity to it? Despite constantly reading that it's ALL about the implementation - it keeps happening. The D50 is a fine DAC and does a lot better in this regard compared to an Auralic Vega I once owned but after some months of ownership it is obvious that there is a point where the tell-tale ache starts and I never get the same discomfort with the Chord or other DACs I have owned using Burr Brown or Cirrus Logic chips.
Wrt D70, I just read that some buyer returned his unit for the reason it sent loud pops in the speakers, on switch-on and changing tracks. Is this a case of one defective unit, or might there be some inherent issue ?
Wrt D70, I just read that some buyer returned his unit for the reason it sent loud pops in the speakers, on switch-on and changing tracks. Is this a case of one defective unit, or might there be some inherent issue ?
It is not a defective unit, it is normal. D70 has aprox. 0.4mV DC offset. It use a high-pass filter for remove the dc voltage. When you start the unit, the signal relay will put on output that 0.4mV. For the first time the amplifier don't see it like a dc voltage to filtered out. For the first moment it see a step voltage. So, we will have a pop in the speakers. Every time the relay work will be a pop in the speakers. In my case, 0.4mV x 50 amplifier gain= 20mV step voltage at the speakers. For me is much more than ok but maybe to another unit it is more than 0.4mV DC voltage at the output.
On day 2 for me... Not a click or pop yet. So far it's simply disappeared (in the best way).
I will be sure to post if I have an issue. So far so good.
Assuming it works like that it definately would be better running the dac at -12db assuming your amp downstream has enough headroom to make up for the lower input signal provided.So looking at the IMD graph, if I was going to hook this up to a THX 789 via XLR, I would want to set the D70 output volume at -12db to avoid that high level rise (also assuming keep the source at 100%)? I would be hooking up the Source to the D70 from Optical instead of USB, so not sure if that would impact the IMD chart at all.
So looking at the IMD graph, if I was going to hook this up to a THX 789 via XLR, I would want to set the D70 output volume at -12db to avoid that high level rise (also assuming keep the source at 100%)?
on sale 20% off = $400
https://www.ebay.com/itm/Topping-D7...hash=item1a7cf39fe5:m:m6bcBv3yTgkeALF8DkT5RRQ
looks like price is dropping quickly, new version coming up ?
At 0dBFS distortion is at -97dB which corresponds to 0.0014%. It is hardly something you should be concerned of. At -12dBFS IMD is at -105dB which corresponds to 0.00056%. You won't hear that difference.